CUE Flashcards

1
Q

What is urbanisation

A

The process by which an increasing proportion of a country’s population lives in towns and cities

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2
Q

What has the urban population in the world grown to from 1950 to 2014

A

746 million to 3.9 billion

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3
Q

What are the most urbanised regions in the world

A

Northern America
Latin America
The Carribean
Europe

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4
Q

What percentage of people lived in urban areas for Northern America in 2014

A

82%

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5
Q

What percentage of people lived in urban areas in Latin America in 2014

A

80%

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6
Q

What percentage of people lived in urban areas in the Caribbean in 2014

A

80%

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7
Q

What percentage of people lived in urban area in Europe in 2014

A

73%

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8
Q

Which two continents are mostly rural

A

Africa

Asia

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9
Q

What percentage people live in urban areas in Afrjcs

A

40%

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10
Q

What percentage of people live in urban areas in Asia

A

48%

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11
Q

Where are the fastest growing urban areas found

A

In Africa and Asia

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12
Q

Which three countries are expected to account for 37% of the projected growth of the worlds urban population between 2014 and 2050

A

India
China
Nigeria

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13
Q

How many urban dwellers is India predicted to add in 2050

A

404 million

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14
Q

How many urban dwellers is China projected to add in 2050

A

292 million

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15
Q

How many urban dwellers is Nigeria predicted to add in 2050

A

212 million

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16
Q

What is the total world population expected to surpass by 2045

A

6 billion

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17
Q

Where will much of the expected urbanisation occur

A

Low income countries

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18
Q

Characteristics of the fastest growing urban areas

A

Medium sized cities.
Cities with less than one million inhabitants.
Many areas projected to be urban in 2040 are not actually built yet.

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19
Q

What percentage of Indias expected urban growth has yet to be built

A

70% of the cities.

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20
Q

What led to population losses in the American cities of Buffalo and Detroit between 2000 and 2014

A

Economic contraction

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21
Q

In 2014 why did New Orleans experience population decline

A

In the wake of the 2005 hurricane Katrina natural disaster

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22
Q

What is a striking feature of the last 30 years of development

A

The rapid development of megacities.

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23
Q

What is a megacity

A

City of urban agglomeration (urban area incorporating several large towns or cities) with a population of more than 10 million

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24
Q

How many megacities were there in 1990

A

10

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25
Q

How many megacities were there in 2014

A

28

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26
Q

How many megacities are predicted in 2025

A

The UN predicts 37

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27
Q

In 2025 what percentage are megacities predicted to hold of the global population

A

13%

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28
Q

Where is the development of megacities largely concentrated

A

In Asian

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29
Q

In 2015 what was the worlds largest city

A

Tokyo, closely followed by Delhi, Mumbai and Shanghai

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30
Q

How many inhabitants did Tokyo have in 2015

A

38 million

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31
Q

What is a metacity

A

A conurbation (continuous built up area) of more than 20 million people.

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32
Q

What plans do the Chinese government have

A

Plans to merge nine cities in the Pearl River Delta to create an urban area 26 times larger than Greater London

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33
Q

Timeline of global ubanisation

A

1960: 34% in urban areas
2014: 54% in urban areas
2050: 66% in urban areas (90% of this concentrated in Africa and Asia)

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34
Q

Why can cities be classed as efficient

A

It is easier to provide basic services such as water and sanitation to people living closer together, likewise access to health, education and other social and cultural services is more readily available.

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35
Q

As towns and cities expand why is there a greater strain on the environment and natural resources

A

The cost of meeting basic needs increases

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36
Q

What has transformed agricultural practices

A

Globalisation and the impact of climate change

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37
Q

Why has the proportion of people leaving rural areas increased

A

They are leaving urban areas to find employment in the cities due to the new agricultural practices being industrialised

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38
Q

How are issues of social cohesion evident

A

As variations in wealth and ethnicity can sometimes lead to hostility

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39
Q

What does the future survival of cities depend on

A

Sustainable growth.
Ability to tackle the major issues such as provisions of affordable housing, employment, pollution and waste disposal, transport and social inequality.

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40
Q

According to the UN when did London receive megacity status

A

2013

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41
Q

What is urban growth

A

An increase in the number of urban dwellers. Classifications or urban dwellers depend on the census definition of urban areas, which vary from country to country. They usually include one or more of the following criteria: population size, population density, average distance between buildings within a settlement and legal and/ or administrative boundaries.

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42
Q

What are the two main causes of urbanisation

A

Natural population growth.

Migration from rural to urban areas.

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43
Q

What is urban sprawl

A

The spread of an urban area into the surrounding countryside

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44
Q

Briefly what are the negative impacts of urban sprawl

A
Raquires more infrastructures and roads.
Habitat loss.
More commuting from suburbs to city so more fuel consumption and congestion.
Air pollution.
Loss of farmland and open spaces.
Impact on water quality and quantity.
Decentralisation.
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45
Q

How is requiring more infrastructures like cables and pipes a negative impact of urban sprawl

A

It is less economically efficient to service low-density rural areas compared to compact urban development with the same number of households

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46
Q

How is wild life loss a negative impact of urban sprawl

A

Because the reach of urban sprawl into rural areas ranks as one of the main causes of wildlife loss because it builds on greenfield sites

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47
Q

How is air pollution a negstive of urban sprawl

A

More people live a car dependant life style Which leads to increased fossil fuel consumption and emissions of greenhouse gas. The areas may also experience higher temperatures in line with the urban heat island effect

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48
Q

How is the loss of farmland due to urban sprawl a negative impact

A

It has led to the loss of fresh local food sources with greater food miles as a result.

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49
Q

How does urban sprawl have an impact on water quality and quantity

A

Covering the countryside with impermeable surfaces means that rainwater is unable to soak into the ground and replenish the groundwater aquifers. It can also lead to greater water run off and increased flood risk

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50
Q

What is decentralisation

A

The movement of industry and businesses, including retail companies into the suburbs.

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51
Q

What has decentralisation been blamed for

A

Decline of retail in some city centres and an increasing homogenisation of the landscape

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52
Q

What does homogenisation mean

A

Where cities become indistinct from one and another

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53
Q

What is an edge city

A

New self-contained settlements have developed beyond the original city boundary

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54
Q

What have American cities in particular witnessed the growth of during urban sprawl

A

Large edge-of-city complexes including shopping malls and leisure areas

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55
Q

What are two causes of urban growth

A

Natural population growth.

Rural-urban migration.

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56
Q

What has urbanisation historically been linked to

A

Other important economic and social transformations

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57
Q

What have economic and social transformations brought about because of urbanisation

A

Greater geographic mobility.
Lower fertility.
Longer life expectancy.

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58
Q

How do cities hold an important role in reducing poverty

A

They hold much of the national economic activity, government institutions, business and transportation and have higher levels of education, better health, easier access to social services and greater opportunities for cultural and political participation.

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59
Q

What is Brazil’s economic and financial capital

A

São Paulo

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60
Q

In 2015 what percentage of São Paulo accounted of the population and national GDP

A

10% of population but 25% of GDP

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61
Q

What does GDP stand for

A

Gross Domestic Product

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62
Q

What percentage of Kenya accounts for the country’s population and GDP

A

8.4% of population and almost 20% or the country’s GDP

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63
Q

What are the age profiles in urban areas

A

Relatively young

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64
Q

What is the age range for young adults

A

15-40

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65
Q

What are pull factors in urban areas

A

Higher paid jobs
Better educational opportunities
Greater social and cultural diversity

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66
Q

Between 2001 and 2011 what happened to the population of large city centres in England in Whales

A

It more than doubled, with the number of residents aged 22-29 nearly tripling to make up almost half of their population.

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67
Q

Why are the rates of natural increase higher in cities than in surrounding rural areas

A

The migrants are in their fertile years

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68
Q

What are fertile years

A

The years during which people have children

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69
Q

Where in London is deemed ‘nappy valley’

A

Area stretching from Clapham, south of the River Thames, westwards to Fulham, north of the river

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70
Q

Why did ‘nappy valley’ get its name

A

Due to the high proportion of young families living there

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71
Q

What has encouraged young families to remain in the city

A

In the past professional couples with young children would have moved to the suburbs when they could afford it but the rising costs and time involved in commuting means more families stay in the city

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72
Q

What is a push factor

A

Cause people to move away from rural areas

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73
Q

What is a pull factor

A

Factors that attract people to urban areas

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74
Q

In low income countries which factors are more important

A

Push factors rather than pull

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75
Q

What are the six brief push factors

A

Population growth.
Agricultural problems.
High levels of disease and inadequate medical provision.
Agriculture is increasingly being organised globally.
Natural disasters.
Wars.

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76
Q

How is population growth a push factor

A

The same area of land has to support increasing numbers of people, causing over-farming, soil erosion and low yields

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77
Q

How is agricultural problems a push factors

A

Desertification because of low rainfall, systems of inheritance that cause land to be subdivided into small plots, systems of tenure and debt on loans taken out to support agricultural change

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78
Q

How is agriculture increasingly being organised globally a push factor

A

Land that has previously been used to grow food for local people is now used to produce cash crops for sale to higher income countries. Many traditional rural communities have been driven off their land and into cities

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79
Q

How are natural disasters push factors

A

Floods, tropical storms and earthquakes mean people flee rural areas and do not return

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80
Q

How is war and civil strife a push factor

A

They cause people to flee their land

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81
Q

What are 4 pull factors

A

Employment.
Earning money from the informal sector.
Better quality social provisions.
A perceived better quality of life.

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82
Q

How is employment a pull factor

A

Employment in factories and service industries is better paid with than in rural areas. There is an increasingly high demand for unskilled labour in cities

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83
Q

How is the informal sector a pull factor

A

Earning money for example selling goods on the street, providing transport or prostitution

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84
Q

How is better quality of social provisions

A

Basic needs such as education and health care to entertainment and tourism

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85
Q

How is perceived better quality of life in the city portrayed

A

Through images in the media

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86
Q

What are the six consequences of urban growth

A

Urban sprawl.
Shortage of housing in lower-income countries.
Shortage of affordable housing in high income countries.
Lack of urban services and waste disposal.
Unemployment and underemployment.
Transport issues.

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87
Q

What can problems with housing, traffic, waste disposal, crime and pollution be linked to in cities all over the world irrespective of their economic status

A

The unique geographical circumstances of the city, such as topography, climate and function

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88
Q

Traditionally how has the process of urban sprawl occurred

A

In an uncontrolled and unplanned fashion

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89
Q

What are the 6 negative impacts of urban sprawl

A
Requires more roads and infrastructure.
Wildlife habitat loss.
More commuting from suburbs to the city increasing fuel consumption and congestion.
Air pollution.
Loss of farmland and open spaces.
Impacts water quality and quantity.
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90
Q

How is this a negative impact of urban sprawl: needs more roads and infrastructures such as cables and wires

A

It is less economically efficient to service low density rural areas compared to compact urban developments with the same number of households

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91
Q

How is this a negative impact of urban sprawl: reach of urban sprawl info surrounding rural areas

A

Wildlife habitat loss

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92
Q

How is this a negative impact of urban sprawl: more commuting

A

Increased fuel consumption and traffic consumption

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93
Q

How is this a negative impact of urban sprawl: air pollution

A

A more car dependant lifestyle leads to increased use of fossil fuels and emissions of greenhouse gases. The area may also expereince higher temperatures in line with the urban heat island effect.

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94
Q

How is this a negative impact of urban sprawl: loss of farmland

A

This has in turn led to loss of fresh local food sources with greater food miles as a result

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95
Q

How is this a negative impact of urban sprawl: water quality and quantity

A

Covering the countryside with impermeable surfaces means the rainwater is unable to soak into the ground and replenish groundwater supplies. It can also lead to greater water run off and increased flood risk.

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96
Q

Along with the movement of people to the suburbs what’s another important component in urban sprawl

A

Decentralisation

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97
Q

What is decentralisation

A

The movement of population and industry from the urban centre to outlying areas. The term may encompass the processes of both suburbanisation and counterurbanisation

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98
Q

What has decentralisation been blamed for in some city centres

A

The decline of retail and an increasing homogenisation of the landscape

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99
Q

What is an edge city

A

Self contained settlements developed beyond the original city boundary and developed as a city in its own right

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100
Q

What have American cities in particular witnessed because of urban sprawl

A

The huge growth of large edge-of-city complexed including shopping malls and leisure areas

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101
Q

What is a consequence of population density being high in urban areas

A

Shortage of accommodation, leading to the presence of large areas of informal and inadequate housing

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102
Q

Where does informal and often inadequate housing usually form

A

On the edge of the city or in areas of low land value prone to environmental hazards such as flooding or landslides, they may also be found adjacent to transport networks or in areas suffering high levels of air, water and noise pollution

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103
Q

What do informal settlements usually have limited access to

A

Basic infrastructure such as water, electricity and waste disposal and a lack of services such as health centres and schools

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104
Q

In 2013 what did the UN Habitat report the numbers of people living in slum conditions were

A

863 million, up from 760 million in 2000 and 650 million in 1950

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105
Q

What is another word for ‘population counts’

A

Enumeration

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106
Q

How does the fact that slums do not have detailed enumeration affect the estimated population

A

The actual number of slum dwellers is likely to be in the excess of one billion not 863 million as the UN habitat estimate

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107
Q

How has the number of Mumbai slum dwellers changed from 2005 to 2015

A

Gone from 6 million to 9 million

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108
Q

What are the informal settlements in Brazil called

A

Favelas - they line the hills of Rio de Janiero

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109
Q

What are informal settlements in India called

A

Bustees

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110
Q

What are informal settlements in West Africa called

A

Bidonvilles

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111
Q

Why has the term ‘slum housing’ been critiqued by people

A

They see it as a political label

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112
Q

In Mumbai, what are some examples of ‘home grown neibourhoods’

A

Shivaji Nagar and Dharvi

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113
Q

What is a ‘Home-Grown neighbourhood’

A

The argument that ‘slums’ were developed gradually by people who live there, with the help of local artisans of construction and usually with little or no support from the authorities

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114
Q

What happened to the proportion of people living in slums between 2000 and 2012

A

It fell

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115
Q

What was the goal of the Millenial Development Goal 7

A

Ensure environmental sustainability

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116
Q

What helps provide evidence for the fact that the lives of slum dwellers have improved between 2000 and 2012

A

The relative success of the Millenial Development Goal 7.

The proportion of slum dwellers falling.

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117
Q

Between 2000 and 2014 what did the UN report of slum dwellers

A

More than 320 million people living in slum dwellers gained access to improved water sources, improved sanitation facilities or durable or less crowded housing. However the total number of people living in slums has continued to increased

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118
Q

What is a target in the post-2015 sustainable development goals

A

To ‘ensure access for all to adequate, safe and affordable housing and basic services, and upgrade slums by 2030

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119
Q

In the last, what was the most extreme strategy adopted by authorities to do with slums and did it work

A

Eradicate slums.

It just moved the problem elsewhere.

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120
Q

After trying to eradicate slums, what was the authorities next approach to help and did it work

A

Acknowledge the presence of slums and provide help in the form of materials or services. These self help or ‘site and service’ schemes have proved remarkably successful in some cities but the quantity and/ or quality of housing remains inadequate in most urban areas around the world

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121
Q

What are the most recent initiatives to help slums

A

Slum upgrading programs. These seek to improve the slums in partnership with local NGOs and development organisations, they focus on securing rights for dwellers, formalising land tw sure rights and providing basic amenities.

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122
Q

What are examples of basic amenities

A

Electricity, water and waste disposal

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123
Q

What is an urbanisation bred to help slums

A

Shack/Slum Dwellers International (SDI)

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124
Q

What is the purpose of the organisation SDI

A

It gives a voice to those living in informal settlements and links up poor communities across Africa, Asia and Latin America. The idea is that slum dwellers share their knowledge and expertise so that they are not excluded from the economic and political processes happening in the city

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125
Q

In the Uk, what had the rising demand for accommodation in cities led to

A

A dramatic increase in both house prices and rental costs

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126
Q

In some parts of London what did the average house prices rise by

A

50% between 2010 and 2015

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127
Q

What is rising house prices fuelled by

A

In-migration, gentrification and by the purchasing of properties by wealth foreign investors

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128
Q

Why do overseas investors buy properties in London

A

Because London is a major global hub and they buy to diversify their international portfolio

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129
Q

What can financial restraints in lower income countries result in

A

A lack of basic services such as water and electricity, maintainence of infrastructure is also limited

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130
Q

What can limited maintenance of infrastructure such as roads, sewers and drainage result in

A

Traffic congestion.
Polluted watercourses.
Flooding.
Rapid spread of disease.

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131
Q

In India, what has the lack of misntenance of infrastructure led to

A

Old pipeline infrastructure has not kept pace with urbanisation, resulting in large urban areas devoid of planned water supply and sewage treatment.

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132
Q

In 2015 what percentage of piped water reached the slum areas in 42 Indian cities and towns

A

5%

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133
Q

What restraints are placed on waste disposal

A

Economic, physical and environmental

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134
Q

Which city authority is only able to deal with 2/3 of the rubbish created by the growing population

A

Addis Ababa, Ethiopia

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135
Q

In Addis Ababa what happens 1/3 of the rubbish that isn’t dealt with by the city authority

A

It is left to private contractors to collect or is simply left on the streets and in rivers created a huge health hazard

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136
Q

Example of a landfill site where families live in makeshift housing and search for material they can use or sell

A

Koshe Dump

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137
Q

Why is there considerable pressure to create sufficient jobs in cities

A

Such a high proportion of the people who move to cities are young

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138
Q

What are unemployment rates usually

A

Typically high although official data is hard to find and many migrants find employment in informal work

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139
Q

What is under-employment

A

A situation in which a person is not doing work that makes full use of their skills and abilities

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140
Q

When may underemployment occur

A

When migrant moves to a new city

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141
Q

What has the processes of urbanisation and suburbanisation led to

A

Increased traffic in cities accords the world,m

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142
Q

What does increased traffic lead to

A

More congestion.
Pollution.
Damaging human health.
Wasting billions of pounds in lost productivity.

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143
Q

What has the spread of houses into the suburbs and beyond created

A

Surges of morning and evening commuters

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144
Q

What adds to the problem of transport issues because of urbanisation

A

Traffic flow for shopping, entertainment and other commercial services add to the problem

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145
Q

During the car boom of the 1960s, what did city planners build as a solution

A

More and wider roads, it didn’t work.

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146
Q

Why didn’t the solution to the car boom in the 1960s work

A

The more roads created, the more cars they attracted

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147
Q

What did the study into traffic in California in 1997 find

A

That new, additional traffic will fill up to 90% if any increase in road capacity within 5 years.

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148
Q

Why is transport issues such a big consequence of urbanisation and urban sprawl

A

Because no matter how much money is spent on traffic infrastructure, congestion and parking problems seem to get worse

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149
Q

What is counter urbanisation

A

Movement of people from large urban areas into smaller urban areas or into rural areas thereby leapfrogging the rural-urban fringe. It can mean daily commuting but can also require lifestyle changes and the increased use of ICT

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150
Q

What is deindustrialisation

A

The loss of jobs in the manufacturing sector, which occurred in the UK in the second half of the twentieth century

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151
Q

What is gentrification

A

The buying and renovating of properties, often in more run-down areas, by wealthier individuals

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152
Q

What is suburbanisation

A

The movement of people from living in the inner parts of a city to living on the outer edges. It has been facilitated by the development of transport networks and the increase in ownership of private cars. These have allowed people to commute to work.

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153
Q

What is urban resurgence

A

Refers to the regeneration, both economic and structural, of an urban area which has suffered a period of decline. This is often initiated by redevelopment schemes but is also due to wider social, economic and demographic processes

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154
Q

What was the trend of movement in the industrial period

A

More people moving into urban areas as opposed to more recently people moving outwards

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155
Q

During the mid twentieth century what was suburbanisation facilitated by

A

The growth of public transport systems and the increased use of the private car.
The presence of railway lines and arterial roads also enabled wealthier commuters to live some distance away from their places of work.

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156
Q

What was ribbon development in towns and cities

A

In the 1930s planning controls and urban growth took place alongside main roads - this was known as ribbon development.

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157
Q

By the 1940s what was created because of the concern due to growth in ribbon development

A

Creation of green belts - areas of open space and low-density land use around towns where further development was controlled

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158
Q

Since 1950s what has happened to suburban expansion

A

It has increased and been better planned

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159
Q

During the 1950s and 1960s what construction took place

A

Large scale construction of council housing took place on the only land available; the suburban fringe

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160
Q

In the 1970s what construction occurred

A

There was a move towards home ownership, which led to private housing estate being built, also on the urban fringe. These allowed people to have more land for gardens and more public open space

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161
Q

Why has there recently been more development on the edge of towns

A

Car ownership grew.

More land available for car parking and expansion.

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162
Q

What was built on the edge of cities in the 1970s

A

New offices, factories and shopping outlets. In a number of cases, the strict control of the green belt was ignored

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163
Q

What has recently been built on the edge of cities

A

New housing estates.
Local shopping centres.
Schools.

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164
Q

Why do people move to the suburbs

A

They desire a quieter, less congested and less polluted environment. The suburbs are perceived as relatively crime free.
they also demonstrate other key benefits of the rural urban fringe such as woodlands and parks, golf courses and playing fields.

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165
Q

What are many housing estates in suburban areas seen as

A

Highly sought after in the property market

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166
Q

What are some negative impacts specifically to do with suburbanisation

A

Increased social segregation: wealthy move out and poor remain in city.
Diversion of funding from the inner city to the suburbs to pay for new infrastructure and services.

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167
Q

Example of social segregation to do with suburbanisation

A

American cities, where segregation has occurred as a result of both wealth and ethnicity

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168
Q

What does counterurbanisation lead to

A

Not suburban growth, but to growth in rural areas beyond the main city.

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169
Q

What is reduced as a consequence of counter urbanisation

A

The difference between rural and urban areas

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170
Q

What are the 4 factors causing counter urbanisation

A

People want to escape air pollution, dirt and crime of urban environment.
Car ownership and greater affluence allow people to commute.
Many employers have moved from the city.
Improvement of technology has allowed more freedom of location.

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171
Q

What is ‘rural idyll’

A

What people see as a pleasant, quiet and clean environment of the countryside where house prices are cheaper

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172
Q

How has improvement in technology been a factor in counter urbanisation

A

The spread of broadband and high speed internet access means that someone working from a home computer csn now access the same global system as a person in an office block in the same centre of a city

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173
Q

What has there been a rising demand for in the countryside

A

Second homes and early retirement

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174
Q

What is the rising demand for second homes and retirement a direct consequence of

A

Rising levels of affluence

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175
Q

What is one straightforward way for farmers to raise money due to agriculture facing economic difficulties

A

Sell unwanted land and buildings

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176
Q

How does counter urbanisation affect the layout of rural settlements

A

Modern housing estates are built on the edge of smaller settlements, and small industrial units on the main road leading into the settlement. Former open areas are built on, old properties and some agricultural buildings are converted and modernised

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177
Q

Why may there be tension between newcomers and locals because of counter-urbanisation (much like with gentrified areas in inner cities)

A

Despite the influx of new people, local services tend to shut down.
Bus services to many rural communities have disappeared, schools and post offices have closed and churches have closed are parishes are amalgamated to larger units.

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178
Q

What is the main reason for local services shutting down because of counter urbanisation

A

Newcomers have the wealth and mobility to continue to use the urban services some distance away

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179
Q

What are the four pieces of evidence for counter urbanisation in an area

A

Increase in the use of a commuter railway station in the area.
Increased house prices.
Construction of more executive housing in the area, often on newly designed building land, following demolition of old properties.
Conversions of former farm buildings to exclusive residences.

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180
Q

What is sometimes referred to as the rural turn around

A

Processes which contribute to social and demographic change in rural settlements

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181
Q

What four things may be included in a ‘rural turnaround’

A

Outmigration of young village born adults seeking opportunities elsewhere.
Decline of elderly village born population, through deaths.
In migration of young to middle aged married couples or families with young children.
In migration of younger, more affluent people, which results in increased house prices.

  • NOTE these changes do not take place uniformly within all rural settlements and these are considerable variations between and within parishes
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182
Q

What is a suburbanised village

A

The parishes with the most change are key settlements that have a range of basic services and good access to commuter routes

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183
Q

Why has urban resurgence been seen in many cities in recent years

A

Redevelopment schemes have made city living more attractive

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184
Q

Where is urban resurgence particularly present

A

Former industrial cities in the UK which suffered from the manufacturing decline in the 1970s and 1980s but have reinvented themselves as cities of culture and commerce.

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185
Q

Examples of former industrial cities in the UK that bounced back after de-industrialisation in the second half of the twentieth century

A

London, Birmingham, Manchester and Leeds

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186
Q

How have former industrial cities revived their fortune

A

Developing strong financial, business and consumer service industries and have attracted more university students, young professionals and immigrant workers

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187
Q

How is urban resurgence evident in a city

A

In its changing landscapes

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188
Q

Areas of a city may contain industrial architecture of the past such as

A

Factories and warehouses

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189
Q

Increasingly, what have industrial architectures of the past been converted to

A

Housing or commercial use and modern infrastructure and services are added

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190
Q

What have many urban rebranding schemes been successful in

A

Transforming run down areas.

Rebranding them as fashionable districts or ‘quarters’.

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191
Q

How does rebranding cities into fashionable districts help the city

A

It attracts more new comers, often young professionals with s higher disposable income

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192
Q

What is urban resurgence often driven by

A

Government-led regeneration schemes but there are wider economic, social and demographic processes which hare also important

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193
Q

What has redevelopment by private companies led to

A

Wholesale transformation of parts of UK cities in recent years and this has served to attract further investment

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194
Q

Why has city living become more attractive

A

Urban areas are improved by urban resurgence so people chose to live closer to work, entertainment and leisure facilities rather than face the long and costly commute

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195
Q

What has facilitated the resurgence in some places

A

Globalisation and technology change

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196
Q

Example of a place where its reputation for creative and digital start up businesses have attracted a huge in-migration of people

A

East London

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197
Q

What can act as a catalyst to changing the fortune of an area

A

Major sporting events such as the London Olympics bringing much needed investment to former industrial parts of East Lodnon

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198
Q

What kind of effect does resurgence babe

A

A positive multiplier effect, it initiates further improvements and attracts greater investments into an area

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199
Q

Why is urban resurgence sometimes not good

A

As more people are attracted back to the city, grates pressure it put on the urban infrastructure and some people may find themselves displaced as house prices rise in line with the demand.
Also concerns that not everyone benefits from resurgence and this has led to increasing inequality between rich and poor.

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200
Q

Examples of American cities which have experienced an urban resurgence in recent decades

A

New York, Boston and Los Angeles

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201
Q

In what time frame saw a huge population decline in urban areas as families increasingly moved to the suburbs

A

Second half of the twentieth century

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202
Q

What process does the term ‘dead-heart syndrome’ describe

A

Loss of manufacturing and retail businesses and the traditional ‘downtown’ areas (major retain centre of cities) were in decline, along with neighbouring residential areas, due to outwards movement of families to suburbs in the twentieth century

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203
Q

What time frame saw the beginning of a resurgence

A

1900s

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204
Q

What has helped revive the fortune of many American cities

A

A sustained period of national economic growth, successful regeneration schemes and more attractive urban design.
More young people are remaining in cities to start a family while many older people whose children have left home are moving back to the city to be close to urban services.

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205
Q

What has the population revival in urban cities increased

A

Demand for services and has fuelled a prosperous urban economy in many cities

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206
Q

Prior to deindustrialisation in the late twentieth century, what was a key development in the growth of urban areas

A

The Industrial Revolution and the rise of the manufacturing industry

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207
Q

What did cities become synonymous with in the period of the industrial revolution

A

Particular types of industry.
Textiles - Manchester.
Iron and Steele - Sheffield.
Shipbuilding - Glasgow.

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208
Q

In the industrial revolution why did so many people migrate to urban areas

A

Because of the rise of the manufacturing industry, there were thousands of jobs created

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209
Q

By the 1980s what were many of the older industrial cities experiencing

A

Severe economic problems associated with the decline of manufacturing

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210
Q

What were the 3 main factors attributing to the decline of manufacturing in cities

A

Mechanisation.
Competition from abroad, particularly rapidly industrialising cities of the time such as Taiwan, South Korea, India and China.
Reduced demand for traditional products as new materials and tschnologies have developed.

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211
Q

What is mechanisation

A

Most firms can produce their goods more cheaply by using machines rather than people

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212
Q

During the decline of manufacturing employment, what did the variation of the unemployment figures between cities depend on

A

The size of the city, ths composition of the urban economy and the actions of the local government

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213
Q

Which cities suffered more extensive loses during the decline of manufacturing employment

A

Cities in the manufacturing heartlands such as Manchester, Liverpool and Sheffield

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214
Q

What was the difference in number of employees between 1980 and 2015 as shown by ONS

A

1980-6,403
1995- 4,201
2015-2,658

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215
Q

How was their significant variation of employment within cities during the decline of manufacturing employment

A

Inner city areas contained many of the old types of workplace most likely to be closed - old plants with the oldest production techniques, lowest productivity etc.
The inner city also lacked suitable land for the expansion of existing manufacturing and as a result new investment tend to be located on the edge of urban areas or more rural locations.

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216
Q

What is the movement of industry away from the inner city known as

A

Decentralisation

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217
Q

What did decentralisation affect in the late twentieth century

A

Residential and retail land

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218
Q

What was decline in manufacturing employment in the late twentieth century accompanied by

A

The rise of the service economy in urban areas

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219
Q

What activites does the service economy cover

A

Tertiary activities such as financial services like banking, retailing, leisure, transport, education and health.
Quaternary activites where knowledge or ideas are the main output, such as advertising, computer programming and software design.

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220
Q

What are the four reasons the service sector has grown

A

Population growth.
Financial services are needed to support manufacturing industries, which are sill important in many cities.
Societies become more technologically sophisticated, they need a larger range of specialised services to keep them running.
Societies become wealthier, they demand more leisure and retail services.

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221
Q

For many urban areas what has there been a dramatic shift in

A

Their economic core from manufacturing to service based activities

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222
Q

Where are the major financial centres located

A

In world cities

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223
Q

Where are corporate headquarters located and why

A

In clusters in urban areas where they can access national and international markets, a highly skilled labour force and specialist support services

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224
Q

As said by Drake and Lee’s ‘The Urban Challenge’ what are the 8 economic impacts of de-industrialisation on urban areas

A

Loss of jobs and disposable income.
Closure of other businesses: ‘closing industry’.
Loss of tax income to local authority.
Potential decline in services.
Increase in demand for state benefits.
Loss of income in service sector as a result of falling spending paper of the local population.
Decline in property prices as outmigration occurs.
Leads to the de-multiplier effect in urban areas affected.

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225
Q

As said by Drake and Lee’s ‘The Urban Challenge’ what are the 5 social impacts of de-industrialisation

A

Increase in unemployment.
Higher levels of deprivation.
Out migration of population, usually those who are better qualified and more prosperous.
Higher levels of crime, family breakdown, alcohol and drug abuse and other social problems.
Loss of confidence and morale in local population.

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226
Q

As said by Drake and Lee’s ‘The Urban Challenge’ what are the 5 environmental impacts of de-industrialisation

A

Derelict land and buildings.
Long term pollution of land from ‘dirty industries’ such as dye works remain a problem because there is no money for land remediation.
Deteriorating infrastructure.
Reduced maintanence of local housing caused by lower personal and local authority incomes.
Positive impacts: reduction in noise, land and water pollution and reduced traffic congestion.

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227
Q

Who created ‘the urban challenge’

A

Drake and Lee

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228
Q

Where provides an important environment for social networking, which is heavily drawn upon in business

A

City bars.
Restaurants.
Clubs.

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229
Q

The growth of the service sector has gone some way to reduce unemployment caused by de-industrialisation however these 4 problems still exist

A

Many people who lost their jobs through deindustrialisation have continued to suffer from long term unemployment.
Many service jobs are part time or temporary.
Number of service jobs created has not always made up for loss of manufacturing jobs.
Inner city locations avoided by service industries and newer manufacturing companies leading to continued inner city decline.

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230
Q

What is urban policy

A

The strategies chosen by local or central government to mans have the development of urban areas and reduce urban problems

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231
Q

Since when has regeneration been a key element of urban policy in the UK

A

The 1980s

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232
Q

What did early regeneration strategies focus on compared to more recent strategies

A

‘Top-down’ economic regeneration but subsequent policies have recognised the need to adopt a more holistic approach, hackling economic, social and environmental problems from the ‘bottom-up’.

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233
Q

The urban policy used between 1979-1991

A

Emphasis given to property-led initiatives and the creation of an entrepreneurial culture

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234
Q

Details of the urban policy in 1979-1991

A

Emphasis on the role of the private sector to regenerate inner city areas.
Coalition boards set up with people from local business community and they were encouraged to spend money buying land, building infrastructure and marketing to attract private investment.

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235
Q

Examples of the urban policy of emphasis given to prosperity led initiatives and the creation of an entrepreneurial culture in 1979-1991

A

Urban development corporations.
Urban land grants.
Enterprise zones.
Derelict land grants.

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236
Q

The urban policy used between 1991-1997

A

Partnership schemes and competition-led policy

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237
Q

Details of the urban policy in 1991-1997

A

Focus on local leadership and partnership between the private sector, local communities, voluntary sector and the local authority.
Strategies focused on tackling social, economic and environmental problems in run-down parts of the city, which now include peripheral estates.

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238
Q

Example of urban policy of partnership schemes and competition led policy in 1991-1997

A

City challenge.
City pride.
Single regeneration budget.

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239
Q

What does the term ‘bottom up’ mean

A

When local people are consulted and supported in making decisions to undertake projects or developments that meet on or more of their specific needs

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240
Q

What does ‘top down’ mean

A

When the decision to undertake projects or developments is more by a central authority such as government with little or no consultation with the local people whom it will affect

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241
Q

What is devolution

A

The transfer or delegation of power to a lower level, especially by central government to local or regional administration

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242
Q

The urban policy used between 1997-2000s

A

Area-based initiatives

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243
Q

Details of the urban policy used between 1997-2000s

A

Focus on narrowing the gap in key social and economic indicators between the most deprived neighbourhoods and the rest of the country.
Local authorities set targets to improve levels of health, education and employment opportunities and funding was allocated to assist them in delivering government objectives.

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244
Q

Examples of the urban policy of area based initiatives used in the 1997-2000s

A

New deal for communities.
Regional Development Agencies (RDAs).
The housing market renewal programme.

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245
Q

What might the urban policy’s be in the future

A

There have been calls for a greater devolution of powers (devolution deals) to English Cities, such as the type granted in Greater Manchester in 2014. Some feel this will lead to more effective place-based urban policies.

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246
Q

What does urban form refer to

A

The physical characteristics that make up built up areas, including the shape, size, density and organisation of settlements

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247
Q

Details of the regeneration policy: Urban Development Corporations

A

Set up in the 1980s primarily to regenerate inner city areas.
The boards of UDcs were made up of people from local community and they were encouraged to spend money on land, infrastructure and marketing to attract private investment. Funding came direct from central government.

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248
Q

Details of the regeneration policy: city challenge

A

1990s, Cities had to compete with each other for government regeneration grants.
The cities with the ‘best’ schemes were awarded the grant.
Local authority led scheme which formed partnerships between the private sector, local communities and the local authority.
Strategies focused on tackling social, economic and environmental problems in run down parts of the city.

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249
Q

Details of the regeneration policy: New Deal for Communities

A

2000s, the NDC partnerships were established to carry out 10-year strategic programmes designed to transform the 39 most deprived neighbourhoods and improve the lives of those living within them.
Local partnerships of residents, businesses, community organisations and local authorities were established but the focus was very much on communities being ‘at the heart of the regeneration’

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250
Q

What scales can urban forms be considered at

A

From regional to urban, neighbourhood and street

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251
Q

What are urban forms continually evolving in response to

A

Social, economic, environmental, political and technological developments

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252
Q

What did a government report on ‘Urban form and infrastructure in the U.K.’ (2014) report

A

That the UKs urban form is characterised by 64 ‘primary urban areas’, including one built up megacity region (London and the Greater South East), six large metropolitan areas (Liverpool, Leeds, Birmingham, Manchester, Newcastle and Sheffield) and 56 towns and cities with more than 125,000 people

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253
Q

What are the largest urban forms

A

Megacity is and world cities

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254
Q

What has led to the rapid rise of megcities

A

Globalisation and economic competition between countries and cities

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255
Q

How has mass migration fuelled large scale population growth

A

When people are faced with poorer economic prospects in rural areas and the perception of a better life in the city they tend to move in mass migration

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256
Q

Historically, what were the greatest global cities

A

The largest, however recently this is not important it is more the influence

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257
Q

Of the worlds most populous cities which 3 cities are in the top ranking of the worlds most important cities

A

Tokyo, New York , Beijing

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258
Q

What term is given to cities which have the greatest influence on a global scale

A

World city/global cité

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259
Q

What is one of the more commonly cities rankings to measure a city

A

It is carried out by the Globalisation and World Rankings Research Network (GaWC) called the Alpha, Beta and Gamma rankings

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260
Q

What is the Alpha, Beta and Gamma ranking of cities based on

A

Initially on the connectivity of cities through four advanced producer services: accountancy, advertising, banking/finance and law.
New indicators were added in 2004 but economic factors are still deemed more important than political and cultural indicators.

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261
Q

What are the cities called below the alpha, beta and gamma rankings

A

Cities with ‘sufficiency of services’ - not world cities but have sufficient services so as not to be dependant on world cities. They tend to include smaller capital cities and traditional centres of manufacturing regions

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262
Q

What are the 12 characteristics of a world city

A

Centres of media and communications for global networks.

Headquarters of multinational corporations.

Major manufacturing centres with port and container facilities.

Domination of the trade and economy of a large surrounding area.

Dominance of the national region with great international significance.

Existence of financial headquarters, stock exchange and major financial institutions.

Centre of new ideas and innovation in business, economics, culture and politics.

Considerable decision making power at a global level.

High proportion of residents employed in service information sectors.

Variety of international financial services including insurance, real estate, banking, marketing etc.

High quality educational institutes including renowned universities, international student attendance and research facilities.

Multi-functional infrastructure offering some of the best legal,C medical and entertainment facilities, in the country.

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263
Q

What is an Alpha ++ city

A

More integrated than all other cities and constitute their own high level of integration

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264
Q

Example of Alpha ++ cities from 2012 GaWC ranking

A

London

New York

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265
Q

What is an Alpha + city

A

Other highly integrated cities complement London and New York, largely filing in advanced service needs for the Pacific Asia

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266
Q

Example of Alpha + cities from 2012 GaWC ranking

A
Tokyo
Hong Kong
Paris
Shanghai
Singapore
Beijing
Sydney
Dubai
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267
Q

What is an Alpha and alpha - cities

A

Very important world cities that link major economic regions and states into the world economy

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268
Q

Example of Alpha and alpha- cities from 2012 GaWC ranking

A
Chicago
Milan
Mumbai
Moscow
São Paulo
Frankfurt
Toronto 
LA
Madrid
And more
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269
Q

What is a beta level city

A

Important world cities that are instrumental in linking their region state into the world economy

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270
Q

Example of Beta cities from 2012 GaWC ranking

A
Bangalore
Lisbon
Copenhagen
Santiago
Rome
Cairo 
And more
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271
Q

What is a Gamma level city

A

These can be world cities linking smaller regions or states into the world economy, or important world cities whose major global capacity is not in advanced producer services

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272
Q

Example of Gamma level cities from 2012 GaWC ranking

A
Zagreb
Lahore
St Petersburg
Durban
Bristol
Islamabad
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273
Q

What does urban morphology refer to

A

The spatial structure and organisation of an urban area, traditionally this would have been affected by physical factors such as relief and drainage

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274
Q

Why did early industrial areas develop close to rivers

A

So they could harness the power of water for energy and transportation

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275
Q

Why was flat land also important for some industrial areas

A

To transport goods via roads or railways

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276
Q

Why does relief still play an important role today for the organisation of an urban areas

A

Because flat land is easier to build on and may attract a higher land value. Conversely, flat land close to rivers may pose a flood risk.

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277
Q

In poorer cities where are informal settlements often found

A

On undeveloped steep land

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278
Q

Example of shanty town built on steep land

A

Brazil’s largest shanty town, Rocinha is built on a steep and rugged hillside overlooking Rio de Janiero. The poorer parts of the shanty town are found higher on the hilltop, with many houses only accessible on foot.

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279
Q

Why is urban form today more strongly influenced by human nature

A

Because humans have been able to overcome the limitations imposed by physical factors

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280
Q

What is the main factor affecting land use in high-income countries

A

Land value

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281
Q

Where is land value traditionally higher

A

In the centre of a city where accessibility is greatest

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282
Q

Where is the Peak Land Value Intersection (PLVI)

A

The point with the highest land value and from here, land prices decline in line with the theory of distance-decay

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283
Q

What is the point with the highest land value called

A

The Peak Land Value Intersection (PLVI)

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284
Q

Describe the typical land values for s city in a high income country

A

The Peak Land Value Intersection in the middle.
From this runs motorways and main roads.
As you get further from the PLVI there is a decline in land values.
However, you can get Secondary Land Value Peaks such as where there are shopping outlets on the edge of cities.
Along these is the outer ring roads.

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285
Q

Which businesses usually occupy the PLVI

A

Only very profitable businesses such as large retailers that can afford the prices of the PLVI. In the Uk the site has been occupied by the likes of Marks and Spencer’s.

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286
Q

Who occupies the CBD

A

Other retailers and commercial enterprises but they cannot all afford to pay the high prices required for the most accessible locations

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287
Q

What is likely to be found towards the edge of the CBD

A

Smaller retailers and businesses who cannot afford to pay the high prices required for the most accessible locations

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288
Q

Why do land values fall significantly in transect of the CBD to the suburbs

A

The different land users are less reliant on accessibility and unable to pay the higher prices associated with this, this is known as the bid-rent theory

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289
Q

Traditionally, what does the bid-rent theory show

A

There has been a move from retailing to industrial and commercial and then residential areas

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290
Q

What is the distance decay theory

A

As distance from the CBD increase there is less competition for land, so the values fall

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291
Q

Roughly what does the bid-rent theory show

A

Shops and offices can afford the high land values of the CBD.
Industry cannot afford the highest land values so is found away from the CBD.
Housing can only afford low land values.

Price of land ^
Distance from CBD >

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292
Q

What shows that the 1980s trend towards out of town shopping centres affected land values in some cities

A

The presence of secondary peaks

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293
Q

Why did secondary land value peaks occur

A

An increase in traffic meant that the city centre was no longer always the most accessible part of the city and a lack of expansion encouraged some of the large retailers to look elsewhere for potential new sites

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294
Q

For the consumer, what did the growth of edge-of-town developments provide

A

Free parking and other land uses such as cinemas and restaurants which proved to be highly attractive. Land values subsequently rose in such areas.

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295
Q

What is the CBD

A

The central areas of a place which contains the major shops, offices and entertainment facilities

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296
Q

What is the inner city

A

An area of old housing and light manufacturing industry. This area dates back to the industrial revolution when it was compromised mainly of terraced housing providing accommodation for factory workers. Many British cities have seen regeneration in these areas in the last three decades.

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297
Q

What is the residential land use in a city

A

Consists of housing from a range of periods, which has traditionally increased in both size and price as one moves towards the outskirts. Urban regeneration and gentrification means that some of the more expensive properties can now be found in traditional ‘low class residential’ areas while council estates are on the edge of cities and are now among some of the most depressed parts of British cities

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298
Q

What is the green area of a city

A

Such as parks tend to be dotted throughout an urban area. They range from large botanical gardens of national importance down to playgrounds within a housing estate

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299
Q

What is the out of town retail developments in a city

A

Originally developed by large supermarkets, these spaces soon expanded to include non food retail units and entertainment complexes. They have had a negative impact on some towns and cities. In 1994 the UK govern,went started to actively discourage their development

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300
Q

What is the business or science parks in a city

A

Tend to be found on the edge of urban areas where there is good access to main roads. Some science parks are located near universities

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301
Q

What is the industry part of a city

A

Manufacturing industries often require large areas of land and tend to be located towards the edge of cities where cheaper land is available. Deindustrialisation brought about the large scale decline of manufacturing industry in British cities and former factory sites have either been demolished or converted into other land use. The later may scull occupy their hisotrical location in the inner city

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302
Q

What is the informal settlement part of a city

A

Features of cities in low income countries. Traditionally developed on the edge of cities although they have also been found adjacent to transport routes or in areas of the city unpopular with residents like rubbish dumps. Physical factors such as steep slopes, unstable land and areas prone to natural hazards may also encourage their development.

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303
Q

What can encourage greater financial investment

A

Government policies such as the establishment of Special Enterprise Zones in Chinese cities

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304
Q

Why do problems occur because of population growth

A

The growth in population is not matched by a growth in resources and infrastructure

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305
Q

How do megacities in low income countries spread

A

In haphazard fashion

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306
Q

What has the haphazard fashion of megacities in low income countries led to

A

The challenge of providing employment, housing and basic services

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307
Q

What are the concerns about megacities

A

About how city authorities can effectively govern such large cities

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308
Q

On average how much more GDP do megacities produce compared to other cities

A

2 to 3 times more

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309
Q

What were the 5 characteristics and benefits highlighted in 2014 by a United Nations report on urbanisation

A

1: they offer opportunities to expand access to services, such as health care and education, for large numbers of people in an economically efficient manner.
2. Less environmentally damaging to provide public transport, housing, electricity, water and sanitation for a densely settled urban population than a dispersed rural population.
3. Urban dwellers have access to larger and more diversified employment markets.
4. Better levels of education and healthcare can improve the lives of the poor and empower women in countries where they do not have equal status.
5. Megacities are centres of innovation where many solutions to global problems are being trialled

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310
Q

Why are political protests more common in urban areas

A

Large numbers of younger people are brought together

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311
Q

What is a fortress landscape

A

Landscapes designed around security, protection, surveillance and exclusion

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312
Q

What is a world city

A

Cities which have great influence on a global scale, because of their financial status and worldwide commercial power.

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313
Q

Which are the three cities which have traditionally sat at the top of the global hierarchy

A

New York.
London.
Tokyo.

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314
Q

Which cities are now joining New York, London and Tokyo at the top of the global hierarchy

A

Beijing.
Shanghai.
Mumbai.

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315
Q

What are some characteristics of the 6 cities at the top of the global hierarchy

A

House the headquarters of many transnational corporations (TNCs).
Centres of world finance.
Provide international consumer services.

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316
Q

What are the 7 main land use zones in a city

A
Central business district.
Inner city.
Residential.
Green areas.
Out of town retail developments.
Business of science parks.
Industry.
Informal settlements.
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317
Q

What have some city centres in the UK experienced in the last 30 years

A

Decline

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318
Q

Why was the decline in city centres due to in the 1980s and 1990s and more recently

A

1980-1990s: The development of out-of-town retail parks and the decentralisation of business and residential areas, which served to pull people away from the CBD.
High parking costs, congestion and perceptions of the city centres as dirty and unsafe were further disincentives for shoppers.
Recently: due to the phenomenal growth of Internet shopping.

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319
Q

What are a few strategies devised to help reverse the decline of city centres

A

Provision of a more attractive shopping environment.
The construction of all weather shopping malls.
Improvement in public transport links.
Establishment of business and marketing teams to co-ordinate managment of the CBD and run special events.
The 2000s ha e seen two other notable strategies as well.

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320
Q

What are many cities encouraging the development of to increase The attraction of the city centre

A

Functions other than retailing

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321
Q

Briefly, what are 7 functions other than retrial encouraged in city centres

A

Wider range of leisure facilities.
Availability of space.
Promotion of street entertainment.
Developing nightlife.
Developing flagship attractions.
Constructing new offices, appartments, hostels and conference centre.
Encouraged residential areas to return to the city centre.

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322
Q

Example of leisure facilities

A
Cinema
Theatre
Cafe
Wine bars
Restaurants 
Other cultural and meeting places to attract a greater range of people
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323
Q

Examples of adding space into a city centre

A

Gardens.

Squares or plazas.

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324
Q

What does adding space into a city enable

A

People watching and other activists

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325
Q

Example of a famous street entertainment

A

Covent Garden in London

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326
Q

Example of developing nightlife

A

Clubbing

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327
Q

Why is developing nightlife not always positive

A

These see negative issues associated with clubbing such as the high level of policing that is necessary

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328
Q

Example of a developed flagship attraction

A

At-Bristol Science Centre and M Shed museum and gallery in Bristol

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329
Q

How does constructing new apartments, offices, hotels and conference centres help a city

A

It raises the status of the CBD for business and encourages tourists to remain near the city centre

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330
Q

How can a city encourage residential areas to return to city centres

A

By providing flats, redeveloping old buildings (gentrification) or building new upmarket apartments

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331
Q

What has the combination of strategies to increase the attraction of the city centre and stricter planning controls placed on out of town developments meant

A

That large cities in the UK have successfully attracted shoppers and visitors back to the city centre.

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332
Q

Where are decision makers still worried about the decline of the CBD

A

In smaller cities and urban areas

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333
Q

What have many cities across the uk initiated the planning and development of and why

A

Cultural and heritage quarters as a deliberate model for urban regeneration of declining inner urban areas

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334
Q

When did culturally-led urban development first begin to appear

A

1980s

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335
Q

Early UK examples of culturally or heritage quarters in 1980

A

Sheffield Cultural Industries Quarter and Manchester Northern Quarter

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336
Q

What is a prerequisite for a cultural quarter

A

Presence of cultural production (making objects, goods and products) or consumption (people going to shows, visiting venues, galleries)

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337
Q

What do heritage quarters focus on

A

The history of the area based around small-scale industries

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338
Q

What do the most successful quarters tend to be

A

Those actually making something or associated with a product, such as the Birmingham Jewellery Quarter

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339
Q

What reputation do many famous quarters tend to build and why is this good

A

Regional and in some cases national reputation which attracts visitors and tourists from further afield bringing financial benefits to the wider area

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340
Q

What have some critics argued about cultural quarters

A

That not all towns and cities need them and in some areas they have simply created higher property values

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341
Q

What have experiences of different ‘quarters’ shown

A

That some are more successful than others

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342
Q

Why are quarters usually viewed in a positive light

A

They are a good tool for regeneration, they improve perceptions of place and preserves the history and culture

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343
Q

What is gentrification

A

The buying and renovating of properties often in more run-down areas by wealthier individuals

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344
Q

Who supports gentrification

A

Groups such as estate agents and local authorities

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345
Q

In the last few decades what has gentrification helped to do

A

Regenerate large parts of British inner cities

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346
Q

What is involved in gentrification

A

Rehabilitation of old houses and streets on a piecemeal basis

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347
Q

Who carries out gentrification

A

Individuals or groups of individuals rather than large organisations

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348
Q

What are 5 brief reason gentrification can happen

A
The rent gap.
Commuting costs.
The 'pioneer' image.
The support of government and local decision makers.
Changing composition of households.
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349
Q

What does the rent gap refer to

A

The situation when price of property has fallen below its real value, usually due to lack of maintenance or investment, and there is a ‘gap’ between actual and potential prices.

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350
Q

Why are properties with the rent gap attractive to builders, property developers or individuals

A

They can afford to renovate the properties and then sell them on to make a property

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351
Q

How does commuting costs cause gentrification

A

Commuting can be time consuming, expensive and stressful. Moving closed to the city centre can eliminate the need to commute.

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352
Q

What does the ‘pioneer’ image refer to

A

The trend of creative individuals such as artists and designers moving into more ‘edgy’ neighbourhoods.

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353
Q

Why does the ‘pioneer’ image exist

A

The groups moving into the edgy neighbourhoods are not interested in the conformity of suburban living but are drawn to the diverse cultural opportunities of the urban centre

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354
Q

Examples of the ‘pioneer’ image

A

Hoxton and Shoreditch in London and SoHo in New York City are seems as the location of vibrant art scenes

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355
Q

How does the support of government and local decision makers cause gentrification

A

Both groups are keen to impoverished the economy and environment of the inner city areas and gentrification is seen as an improving part of this

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356
Q

How does changing composition of households cause gentrification

A

Many cities have seen the growth of single or two person households without children. These households are more likely to see the benefits of inner city living

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357
Q

What are the 4 costs of gentrification

A

People on low incomes cannot afford higher property prices or rents.
Higher cad ownership may increase congestion.
Potential loss of business for traditional local shops.
‘Gentrifers’ may be seen as a threat to the traditional community and friction may occur between ‘newcomers’ and original residents.

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358
Q

What are 4 benefits to gentrification

A

Rise in general level or prosperity and increasing number and range of services and businesses.
Increased local tax income for the local authority.
Physical environment of the area improved.
Greater employment opportunities created in areas such as design, buildings and refurbishment.

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359
Q

What are the two conflicting views of commentators on gentrification

A

Some have emphasised the importance of gentrification in inner city regeneration, others have raised concerns about the displacement of low income families and small businesses.

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360
Q

In London, what has gentrification continued significantly to

A

The lack of affordable housing and prices have been pushed up even beyond the level of well-paid professional workers

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361
Q

What are becoming more common because of gentrifcation

A

Anti-gentrification processes

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362
Q

What does fortress landscape mean

A

Refers to landscapes designed around security, protection, surveillance and exclusion

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363
Q

In the UK what are 5 strategies used to reduce crime in urban hotspots

A

Greater use of CCTV.
Railings and fencing around private spaces.
‘Mosquito’ alarms which emit a high pitched sounds heard only by young people, to discourage loitering around certain buildings.
Effective use of street lighting.
Speed bumps to prevent joyriding.

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364
Q

Examples of urban hotspots

A

City centres and inner city estates

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365
Q

What are more recent strategies used to rescue crime in urban hotspots

A

Focused on ths concept of ‘designing out crime’ through better urban architecture

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366
Q

Examples of UK city ‘designing out crime’

A

Manchester, the redevelopment of housing in parts of Greenheys and Wythenshawes estates have included more Windows to provide more natural surveillance, provision of front gardens with fences or hedges to mark a clear boundary between private and public space and bins in gated compounds rather than open alleyways.

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367
Q

What are features avoided in ‘designing out crime’

A

Recessed doorways for people to hide in.
Projecting window sills or exposed rainwater downpipes, which would make it easier for anyone to climb on to the roof and dark alleys and dead ends associated with muggings and drug deals.

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368
Q

What are some exclusionary tactics some UK cities have adopted from North America

A
The use of anti-homeless spikes fitted into the ground in shop doorways or outside upmarkets apartments. Heavily criticised. 
High pitched mosquitos alarm.
Sloped bus shelter seats.
Special benches to deter skateboards.
These raise few eyebrows.
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369
Q

What are increasingly becoming a feature of some urban landscapes

A

Gated communities

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370
Q

Where are gated communities common

A

USA and South Africa

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371
Q

What is increasing in British cities security

A

Electronic control of access into housing complexes

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372
Q

What notion is present in the idea of fortress landscapes

A

The idea of ‘insider’ and ‘outsider’

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373
Q

What are edge cities associated with

A

The urban landscape of North America and have been viewed by some as a feature of postmodern urban living

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374
Q

What are edge cities largely the result of

A

Urban sprawl

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375
Q

Why has the emergence of edge cities happened on a large scale in the USA

A

It is a result of higher car ownership, greater willingness to travel long distances for work, shopping and entertainment and limited planning restricting in the suburbs

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376
Q

What is a common example of a sprawling urban settlement

A

Los Angeles

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377
Q

How is Los Angeles a good example of a sprawling urban settlement

A

In 2015 the core city of Los Angeles which is 30 kilometres wide had 4 million residents.
However this is surrounded by a metropolitan area of nearly 18 million people which is more than 100 kilometres at its widest point.
Within this area there are more than 20 edge cities.

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378
Q

Where do edge cities develop close to

A

Major roads or airports and tend to be found in close proximity to shops, offices and other businesses which decentralised from the original city

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379
Q

While edge cities lack a clear structure they have a wide range of amenities including

A

Schools, shopping malls and entertainment facilities, residents may rarely go back to the original core city

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380
Q

What has edge cities been linked to

A

Extreme social segregation where the wealthy have moved to the new suburban settlements leaving only the poor and disadvantaged sections of society in the original city boundary

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381
Q

What does the term post modern describe

A

The changes that took place in Western society and culture in the late twentieth century

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382
Q

What did post modernism mainly concern

A

Art and architecture and it marked a departure from the conformity and uniformity of modernism

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383
Q

What is post modernism characterised by

A

The mixing of different artistic styles and architecture

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384
Q

What are 7 features of a postmodern western city

A

Fortress Landscapes.
More fragmented urban form comprising independent settlements (Edge cities), economies, societies and cultures.
Greater ethnic diversity but heightened economic, social and cultural inequalities and polarisation.
Spectacular flagship developments such as the Guhgenheim museum in Bilbao, Spain.
Eclectic and varied architecture as seen in the London city scape.
Greater emphasis on producer services and knowledge based industries rather than industrial mass production.

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385
Q

What has the notion of the postmodern western city been based on

A

While elements of postmodernism can be seen in cities all over the world,cit is based on experiences of a small number of (mainly American) cities

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386
Q

What is Los Angeles often referred to as

A

The archetypal postmodern city but experiences of cities like Los Angeles are clearly not representative of cities elsewhere in the world.

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387
Q

What is economic inequality

A

The increasingly large wealth gap between rich and poor residents which is a key feature of cities in Asia, Africa and South America

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388
Q

Where is a good example of economic inequality

A

In Mumbai, the worlds most expensive home towers over one of the largest slums in the area. Antilla is a 27 storey home worth $21 billion. Within a short distance is Byculla, an area I habituated by Mumbais 9 million slum dwellers

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389
Q

What do most slum dwellers in Mumbai survive on

A

Less than $2 a day

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390
Q

What is cultural diversity

A

The existence of a variety of cultural or ethnic groups within a society

391
Q

What is diaspora

A

A group of people within a similar heritage or homeland who have settled elsewhere in the world

392
Q

What is social segregation

A

When groups of people life apart from the larger population due to factors such as wealth, ethnicity, relgion or age

393
Q

What is urban social exclusion

A

Economic and social problems faced by residents in areas of multiple deprivation

394
Q

What are three reasons the wealthy and the poor seem to concentrate specially

A

Housing.
Changing environments.
The ethnic dimension.

395
Q

How does housing cause social segregation

A

Developers, buildings and planners tend to build housing on blocks of land with a particular market in mind.
The requirement to include a proportion of affordable housing may affect housing values in some areas but wealthy people can choose where they live, paying premium prices for houses away from poor areas which pleasing environments and services. Poorer groups have less choice.

396
Q

How does the changing environment affect social segregation

A

Housing is only a partial explanation for inequality since neighbourhoods change over time.
Houses built for large families in Victorian and Georgian times are now too big for the average family.
Many have been converted into apartments for rental to people on low income.
Conversely, former poor areas are being gentrified.

397
Q

Which legislation helped transform many council estates and how

A

The ‘right to buy’ legislation in the 1980s.

The houses were bought by occupants and gentrified.

398
Q

How does the ethnic dimension cause social segregation

A

Ethnic groups originally come to the country as new immigrants.
When they first arrive they may suffer discrimination in the job market and may be unemployed or employed in low paid jobs.
They are only able to afford cheap housing or rent privately.
Therefore, newly arrived migrants concentrate in poor areas of the city, often clustered into multicultural areas.
Such ethnic groupings tend to persist into later generations.

399
Q

What is the index of multiple deprivation

A

A Uk government qualitative study measuring deprivation at small-area level across England. It is an overall measure of multiple deprivation experienced by people living in an area

400
Q

How is the Index of Multiple Deprivation 2015 calculated

A

The English Indices of Deprivation 2015 are based on 37 separate indicators, organised across seven distinct domains of deprivation which are combined, using appropriate weights, to calculate the IMD

401
Q

What areas are part of the IMD

A

Every Lower Layer Super Output Area (LSOA), or neighbourhood, in England

402
Q

What are the seven different dimensions of deprivation

A
Income
Employment 
Health deprivation and Disability
Education, Skills and Training
Crime
Barriers to Housing and Services 
Living Environment
403
Q

What did the 2010 IMD data find

A

That 98% of the most deprived areas in England were cities

404
Q

What did the 2015 IMD data find

A

The concentrations of deprivation were mainly found in large urban conurbations, areas that have historically had large heavy industry, manufacturing and/or mining sectors, coastal towns, and large parts of East London

405
Q

Examples of the 20 most deprived local authorities in 2015

A

Largely the same as those found in 2010

406
Q

Examples of local authorities which were in the most deprived 20 in 2010 but have become relatively less deprived and no longer feature in this list in 2015

A

London Boroughs of Hackney.
Tower Hamlets.
Newham.
Harringeyz

407
Q

What is largely responsible for deprived neighbourhoods becoming less deprived

A

Gentrification

408
Q

Why may people in deprived areas not be themselves be deprived

A

The statistics of the IMD are a measure of relative deprivation, not affluence, and so not every person in a highly deprived area will be deprived themselves. Likewise there will be some deprived people living in the least deprived areas.

409
Q

What does urban social exclusion refer to

A

The problems faced by residents in areas of multiple deprivation, these people are excluded form full participation in society by their social and physical circumstances

410
Q

What are some examples of urban social exclusion

A

People can’t attain a decent job because of poor education or obtain decent housing because of poverty.
Often they suffer from poor health and from high levels of crime in an unattractive physical environment.

411
Q

In a city what can inequality cause

A

Lack of social cohesion and in extreme cases it can lead to civil unrest

412
Q

Where have traditionally been the most deprived urban neighbourhood

A

Inner city areas

413
Q

What were the characteristics of deprivation caused by

A

De-industrialisation in the second half of the twentieth when unemployment became a major problem. Population loss followed and the movement of younger, more affluent and skilled residents left behind a population who were older, less skilled and poor

414
Q

What are the four measures of the quality of life

A

Social
Physical
Economic
Political

415
Q

Examples of the social aspect to working out quality of life

A

Incidence of crime
Fear of crime
Percentage on free school meals
Percentage on state benefits
Standard of education (e.g percentage staying on post-16)
Standards of health and access to health facilities (e.g percentage in poor health)

416
Q

Example of political aspect to working out quality of life

A

Opportunities to participant in community life and influence decision making (e.g percentage voting in an election)

417
Q

Example of physical aspect to working out quality of life

A
Quality of housing
Level of pollution (air/noise)
Incidence of litter
Graffiti 
Vandalism
418
Q

Example of economic aspect to working out quality of life

A

Access to leisure services, open spaces etc
Access to employment (e.g percentage unemployed long term)
Level or income
Percentage of lone-parent families
Percentage of lone pensioners

419
Q

Is there a clear geographical pattern to urban poverty today

A

No

420
Q

What image of urban poverty is outdated

A

The image of a troubled inner core surrounded by affluent suburbs is out-dated

421
Q

Where are some of the highest levels of urban poverty found

A

In peripheral estates

422
Q

Why do inner cities no longer have the highest levels of urban poverty

A

They have been transformed by regeneration schemes

423
Q

Where are rich and poor areas today found

A

Across city and suburbs alike

424
Q

What remains a major challenge for cities in the twentieth century

A

Inequality

425
Q

What can the gap between rich and poor within a city be compared to across a whole country

A

Greater within a city

426
Q

Where do inequalities exist

A

In terms of access to job opportunities, education, housing and basic public services such as water and sanitation

427
Q

In poor cities, what is primarily channelled to upper and middle class neighbourhoods

A

Adequate water and sanitation services, while low income neighbourhoods often depend on distant and unsafe water wells and lack any form of waste disposal

428
Q

What are the knock on impacts of poor people living in overcrowded and informal accommodation which lacks basic infrastructure and services

A

Poorer health, higher unemployment and a lack of social mobility

429
Q

What is the poverty cycle

A

The poor being stuck in a cycle of poverty which is hard to escape from

430
Q

What is the difference between poverty and inequality

A

Poverty is an absolute term, referring to a level of deprivation that does not change over time. Whereas inequality is a relative term referring to the differences between people, usually economic, over a geographic distribution

431
Q

When can inequality be high in society without high levels of poverty

A

Due to a large difference between the top and the middle of the income spectrum

432
Q

Examples of inner city decline

A
Loss of jobs
Lack of skills
Ageing population
Declining industries
Population loss
Lack of capital investment 
Illness
Lack of capital investment 
Poor infrastructure for industrial expansion
433
Q

Examples of inner city despair

A
Riots
Social unrest
Rising crime rates
Low public participation 
Vandalism
Political extremism
434
Q

Example of inner city deprivation

A
Poorly built tower blocks
Poverty
Pollution
Population loss 
Inadequate services
Dereliction
Difficult schools
Traffic congestion 
Lack of adequate open space 
High concentration of ethnic groups
435
Q

What is the main drive of urban inequality

A

Wealth

436
Q

What do richer cities tend to have higher rates of compared to smaller cities

A

Big cities like London have higher rates of inequality while more equal cities are those that are smaller, have lower average wages and are coming out of the end of years of industrial decline

437
Q

On a national stage what can a redistributive tax system help to do

A

Reduce inequality but on a local level the effects are less clear

438
Q

What are 7 strategies to reduce poverty and inequality

A

Enforcing a living wage or providing an urban subsidy.
Provision of schools.
Support low skilled workers who want to develop their abilities.
Access to affordable housing.
Greater provision of public transport.
Enforce minimum environmental standards.
‘fairness commissions’.

439
Q

Examples of enforcing a living wage to help battle poverty and inequality

A

The London Living Wage has achieved success with over 10,000 families lifted out of working poverty since 2005

440
Q

How does provision of schools help battle poverty and inequality

A

Education may be taken for granted in many high income countries but schooling beyond primary school level helps lift millions of people out of poverty in lower income countries

441
Q

How does supporting low skilled workers help battle poverty and inequality

A

Cities need to ensure labour markets are inclusive, giving all residents the skills and opportunities needed to enter the workforce

442
Q

How does access to affordable housing help battle poverty and inequality

A

The presence of slum housing in poorer cities should not hide the fact that access to affordable housing is a major problem in wealthy cities too.

443
Q

Examples of access to affordable housing causing inequality and poverty

A

In London, the lack of affordable housing has been blamed for breaking up families, reducing employment prospects and mobility and slowing the economy

444
Q

How does greater provision of public transport help battle inequality and poverty

A

Affordable public transport schemes improve mobility for the city poor, enabling them access to employment, education and services that could improve their lives

445
Q

Example of greater provision of public transport reducing poverty and inequality

A

The Rio de Janiero sky-high transport system, which connects six hilltops and covers 3.5km was installed in 2011 to service 13 favelas and provide access to the main part of the city. Scheme was designed to give mobility to a once-stranded population and 12,000 people ride it daily.

446
Q

How does enforcing a minimum environmental standard battle poverty and inequality

A

Poor health is strongly linked to poor environmental conditions. This can be improved through effective legislation

447
Q

Examples of British cities who have established ‘Fairness Commissions’

A

Liverpool and Sheffield

448
Q

What do ‘fairness commissions’ look at

A

How local areas can address inequality

449
Q

What can culture relate to

A

Nationality, race, age and traditions

450
Q

What is a key influence of cultural diversity

A

Immigration

451
Q

Which places does cultural diversity tend to flourish

A

Urban areas, especially large cities

452
Q

What has led to the creation of multicultural urban societies

A

Cities like London, New York and Amsterdam

453
Q

What is London considered to be

A

One of the most diverse cities in the world

454
Q

How many languages are spoken by people in London

A

More than 300

455
Q

How many non-indigenous communities are within London

A

50 with populations of 10,000 or more

456
Q

What has increased movement around the world

A

Globalisation

457
Q

In some global cities what do diasporas make up of the population

A

A larger proportion of the population than the indigenous residents

458
Q

Example of a place where diasporas make up a higher proportion than indigenous residents

A

The United Arab Emirate state of Dubai, the majority of the city’s population is made up of expatriates. Two thirds of the population if make up of Asian descent with people coming from India, Pakistan, Bangladesh. Arabic is recognised as the official language but many languages are readily spoken like English, Urdu, Hindi and Chinese etc.

459
Q

What percentage of the people in Los Angeles are multilingual

A

57%

460
Q

Examples of places in Los Angeles which reflect its cultural diversity

A

Cultural enclaves such as Chinatown, Koreatown and Thai Town

461
Q

What are 5 reasons immigrants are likely to choose to live in urban areas

A

Cities tend to offer a greater range of employment.
Cities are the first point of entry into the country for many immigrants.
Cities tend to house earlier immigrant groups with the same ethnicity.
Established cultural diversity in cities means there are specialist ethnic shops and religion centres located there.
Urban populations tend to be more tolerant of immigrants.

462
Q

What did the port city of Liverpool attract

A

Many Irish migrants in the nineteenth and twentieth centuries

463
Q

Where are there large concentrations of the Indian ethnic minorities

A

In cities such as Leicester and Greater Manchester, Where labour intensive industries such as clothing were traditionally located

464
Q

What is a more recent influx of migrants

A

Eastern European has led to changes in the demographic makeup of many British cities

465
Q

What is the population like in Southampton

A

More than 10% of the population are now Polish and specialist Polish supermarkets and restaurants have opened to cater for them

466
Q

What are the commonly cited advantages of cultural diversity

A

Relates to the greater exposure people get to different foods, music, language and religion

467
Q

Examples of events in England that have become part of the British calendar

A

The Notting Hill Carnival in London and Mela in Newcastle

468
Q

What do festivals in the Uk serve to illustrate

A

An acceptance of and interest in different cultures

469
Q

What can cultural diversity put pressure in

A

Already stretched urban services

470
Q

Where language differences exist what may local authorities need to provide

A

English Lessons or Bilingual literature

471
Q

Because of cultural diversity, what may hospitals need to do

A

Cater for specific illnesses

472
Q

Because of cultural diversity, what may schools need to do

A

Alter their curricula and holiday patterns to cater for different ethnic groups

473
Q

Why is it the responsibility of local authorities to ensure that all children have the same opportunities

A

Because variations in educational attainment have been noted

474
Q

What percentage of Cardiff is White, Asian, Black or Chinese

A

White: 84.24%
Black: 1.67%
Asian: 5.56%
Chinese: 0.95%

475
Q

What are the different percentages of ethnicities in Birmingham

A

White: 63.26%
Black: 6.57%
Asian: 19.62%
Chinese: 1.11%

476
Q

What are the different percentages of ethnicities in Southampton

A

White: 81.75%
Black: 2.15%
Asian: 6.38%
Chinese: 0.59%

477
Q

What are the different percentages of ethnicities in London Borough of Brent

A

White: 38.08%
Asian: 24.42%
Black: 16.09%
Chinese: 1.76%

478
Q

Why have many countries adopted a multicultural policy

A

To protect and celebrate cultural diversity

479
Q

What do some argue about countries adopting a multicultural policy

A

That at an urban level, this can encourage culturally and spatially distinct communities leading ‘parallel lives’ which is known as segregation

480
Q

Example of segregation in an urban area

A

In Dubai, British migrant workers tend to live in expat (sometimes gated) communities and integrate little with local society

481
Q

What has London witnessed an influx of in recent years

A

Wealthy immigrants and these have tended to cluster together

482
Q

Why does the pricing of houses in Mayfair and Knightsbridge far exceed the reach of even wealthy British people

A

They are home to a multitude of millionaire from the Middle East and the former Soviet Union

483
Q

What did the 2011 census show as the distribution of white British and Pakistani people in London

A

The distribution of white British populations shows a concentric pattern around the edge of London while those of Pakistani descent are concentrated in three main areas of the city (North East) (south) and (West)

484
Q

In which cities have different ethnic communities been isolated from wider society

A

In some European and North American cities

485
Q

How have some ethnic community become isolated from wider society

A

They have maintained their own language and beliefs and limited their interactions with others

486
Q

What can local schools being dominated by a particular group lead to

A

Suspicion and hostility as younger people do not get to know each other

487
Q

In American cities what has the term ghetto been used to describe

A

An area of a city where the population is almost exclusively make up of an ethnic or cultural minority

488
Q

Where are ‘ghettos’ usually located

A

In the poorer parts of the city, where wealthier residents have left and where unemployment rates are high

489
Q

What does the place sit on Brick Land and Spitalfields highlight

A

The large concentration of people of Bangladeshi decent in East London

490
Q

What are the two reasons for segregation in cities

A

Self-segregation

External factors

491
Q

What are the four self-segregation

A

Migrants seek the support and security of living near friends and relatives within an ethnic minority community.
Provision of specialist faculties such as places of worship and food shops.
Protection against racial abuse and attacks from the majority population.
Maintenance of cultural, language and traditions.

492
Q

What are the external factors for segregation in cities

A

Traditionally, migrants have been a source of cheap labour focusing them into areas of cheap housing.
Ethnic minorities had been discriminated against in access to local authority housing. They have also been less successful in securing mortgage loans.
Hostility from the majority population.
Movement of the majority population out of the area into which minority populations have moved.

493
Q

What is often referred to as ‘white flight’

A

The movement of he majority population out of the area into which minority populations have moved

494
Q

What do geographical patterns of ethnic segregation tend to be

A

The result of self-segregation, but there are also external factors which have encouraged ethnic minorities to live in particular areas

495
Q

What did analysis of the 2012 census data reveal

A

That many large cities in the Uk like Birmingham and Manchester recorded a decrease in segregation for most ethnic groups between 2001 and 2011

496
Q

Examples of decreased segregation in the Uk

A

Indian and Chinese groups across England and Wales.

In London even the most diverse wards of Brent and Newham have experience a decrease in segregation.

497
Q

Why has a policy of interculturalism been introduced

A

To tackle the negative issues associated with ethnic segregation

498
Q

What does interculturalism do

A

Emphasises Interactions and the exchange of ideas between different cultural groups.
Areas of mutual interest are found and community engagement is conducted in ‘intercultural spaces’ such as libraries, schools, sports clubs and community centres

499
Q

In the Uk what is there legislations on

A
Anti-racism
Employment rights
Opportunities to combat discrimination.
Prejudice 
Racism
500
Q

What can encouragement of greater political involvement of different cultural groups also encourage

A

Greater integration and provide a voice for those who may feel under-represented

501
Q

What do urban areas create their own

A

Climate and weather or ‘microclimate’

502
Q

What is a ‘climatic dome’

A

Within the dome the weather is different from that of surrounding rural areas in terms of temperature, relative humidity, precipitation, visibility, air quality and wind speed

503
Q

For a large city, how big can the climatic dome extend

A

Upwards to 250-300m and it’s influence may continue for tens of kilometres downwind

504
Q

WhT is albedo

A

The reflectivity of a surface. It is the ratio between the amount of incoming isolation and the amount of energy reflected back into the atmosphere.

505
Q

Why do light surfaces have a greater albedo

A

Light surfaces reflect more than dark surfaces

506
Q

What is a microclimate

A

The small scale variations in temperature, precipitation, humidity, wind speed and evaporation that occur in a particular environment such as an urban area

507
Q

What is particulate air pollution

A

A form of air pollution caused by the release of particles and noxious gases into the atmosphere. Emissions of particles can occur naturally but they are largely caused by the combustion of fossil fuels

508
Q

What is photochemical pollution

A

A form of air pollution that occurs mainly in cities and can be dangerous to health. Exhaust fumes become trapped by temperature inversions and, in the presence of sunlight, low-level ozone forms. It is associated with high pressure weather systems

509
Q

What is a temperature inversion

A

An atmospheric condition in which temperature, usually, increases with height. As the inversions are extremely stable conditions and do not allow convection, they trap pollution in the lower layer of the atmosphere

510
Q

What is the urban heat island

A

The zone around and above an urban area, which has higher temperatures than the surrounding rural areas

511
Q

What are the two levels in an urban dome

A

Urban canopy where processes act in the space between buildings (sometimes referred to as ‘canyons’)

Above this is the urban boundary layer, the dome extends downwind and at heigh as a plume into the surrounding rural areas.

512
Q

What is the temperature increase of urban areas compared to nearby areas

A

Annual mean - 0.5-0.8*C increase

Winter minimum - 1.0-1.5*C increase

513
Q

What is the increase of precipitation in urban areas compared to surrounding rural areas

A

Quantity: 5-10% increase

Days with less than 5mm: 10% increase

514
Q

What is the decrease of relative humidity in urban areas compared to surrounding rural areas

A

Annual mean: 6% decrease
Winter: 2% decrease
Summer: 8% decrease

515
Q

What is the increase of visibility in urban areas compared to surrounding rural areas

A

Fog in winter: 100% increase

Fog in summer: 30% increase

516
Q

What is the change in wind speed in urban areas compared to surrounding rural areas

A

Annual mean: 20-30% decrease
Calms: 5-20% increase
Extreme gusts: 10-20% decrease

517
Q

What is the radiation in urban areas as opposed to surrounding rural areas

A

Ultraviolet in winter: 30% lower
Ultraviolet in summer: 5% lower
Total on horizontal surface: 15-20%

518
Q

What is the increase of pollution in urban areas compared to surrounding rural areas

A

Dust particles: 1,000% increase

519
Q

Briefly describe the urban climatic dome

A

Prevailing wind causes the dome shape.
Rural-urban-fringe through to high rise characteristics of the central business district and back to the rural urban fringe.
Rural boundary layer.

520
Q

What can the annual mean temperature of a city with one million or more people be

A

1 to 3C warmer than it’s surroundings and on a clear, calm night, this temperature difference can be as much as 12C

521
Q

What is the fluctuation of temperatures in urban areas dependant one

A

Season, weather conditions, sun intensity and ground cover

522
Q

When are surface urban heat islands typically largest

A

In the summer

523
Q

What do smaller urban areas produce

A

Heat islands, but the effect tends to decrease as city size decreases

524
Q

What does the US Environmental Protection Agency show of the urban heat island effect

A

It can be seen that typically the urban temperatures are at their highest in the mid-afternoon over the CBD.
Secondary peaks of high temperatures appear over other built up areas such as the suburban residential areas.
Temperature range from rural to city centre is often greatest at night due to the high heat storage capacity of building materials compared to vegetation.
There is very little variation in surface temperatures over areas of water.

525
Q

Why is there very little variation in surface temperature over areas of water

A

Because water maintains a fairly constant temperature over a 24 hour period due to its high heat capacity

526
Q

What is a landsat satellite image

A

Land surface temperature map

527
Q

In a Landsat satellite image why are the mostly densely vegetated areas the coolest areas

A

Because vegetation cools the surface through evaporation of water

528
Q

In an aerial photo, what do the colours represent

A

Trees and other vegetation are green.
Roads and development appear grey.
Bare ground is tan or brown.

529
Q

In a land surface temperature map what do the colours mean

A

Cooler temperatures are yellow and hotter temperatures are red.

530
Q

Where development is denser what is the land surface temperature

A

Near 30*C

531
Q

What are the 4 reasons that cities tend to be warmer than rural areas

A

Surfaces in the city tend to be much less reflective than those in rural areas.
Air pollution from industries and vehicles increase cloud cover and create a pollution dome.
In urban areas, water falling to to the surface is disposed of as quickly as possible.
Heat comes from industries, buildings and vehicles, which all burn fuel.

532
Q

Examples of building materials that have a low albedo

A

Concrete, bricks and tarmac

533
Q

What do building materials like concrete, bricks and tarmac absorb large quantities of

A

Heat during the day

534
Q

How do the surfaces in the city tend to increase temperature in the cities

A

Surfaces in the city have a lower albedo and absorb large quantities of heat during the day. Much of the heat is stored and slowly released at night. Some urban surfaces like large windows have a high reflective capacity, and multi-storey buildings tend to concentrate the heating effect in the surrounding streets by reflecting energy downwards.

535
Q

In winter what happens to the albedo in rural areas

A

As rural areas keep snow for a much longer period of time they therefore have a greater albedo ranging from 0.86-0.95

536
Q

What does a ‘pollution dome’ allow

A

It allows in short wave radiation but absorbs large amounts of the outgoing radiation as well as reflecting it back to the surface

537
Q

How does water falling on the surface being disposed of quickly affect temperature in cities

A

It changes the urban moisture and heat budget - it reduces evapotranspiration meaning that more energy is absolve to heat the atmosphere

538
Q

How does heat coming from industries, buildings and vehicles, which all burn fuel affect temperature in citizen

A

Although they regulate the temperatures indoors, air conditioning units release hot air into the atmosphere. Even people generate heat and cities contain large populations in a small space

539
Q

Examples of urban surface albedos

A
Asphalt:0.05-0.20
Concrete: 0.10-0.35
White paint: 0.50-0.90
Highly reflective roof: 0.60-0.70
Tar and gravel: 0.03-0.18
540
Q

What do Evan environment albedos tend to be compared to rural areas

A

Much lower

541
Q

Examples of rural surface albedos

A
Deciduous forest (0.17)
Coniferous forest (0.14)
Sand (0.37)
542
Q

How has rising temperatures in the summer months caused concern about the UHI in London

A

The conditions can become uncomfortable in buildings and on city transport. During extreme heat island events, the case of heat stroke, asthma, organ damage and even death increase. Vulnerable groups like babies and the elderly are most likely to be effected.

543
Q

How have the hot and still anticyclonic weather conditions caused concern about the UHI in London

A

They are responsible for intense urban heat island events and also produce higher air pollution levels. This is because the chemical reactions that produce ozone and smog are accelerated by high temperatures while the lower wind speeds keep the heat and pollution trapped in the city.

544
Q

How has excessive heat caused concern about the UHI in London

A

It puts an increased strain on the supply of energy for cooling and air conditioning

545
Q

How has the fact that In warmer periods the added heat from the urban heat island can lead to increased water consumption caused concern about the UHI in London

A

This places extra strain on the water supply infrastructure and can lead to water-use restrictions. Evapotranspiration rates will also be higher with the result that plants and trees will potentially extract water from the soil at greater rates than normal.

546
Q

How does the earlier flowing times of plants and trees in cities caused concern about the UHI in London

A

There is a prolonged growing season which may cause discomfort for city residents who face a longer allergy season

547
Q

How does the prologued survival and higher reproduction rates of some animals and insects cause concern about the UHI in London

A

They can be problematic and there is a greater potential for algae blooms in water courses as a result of rising temperatures

548
Q

How has the increased rates or temperature related chemical weathering caused concern about the UHI in London

A

There is an increased risk of deterioration of historical monuments and buildings

549
Q

What is climate change expected to increase the intensity of

A

The urban heat island effect in most urban areas

550
Q

What can urban temperatures be mapped using

A

Isotherm maps

551
Q

Example of urban heat island in London

A

Temperatures in central London rise to aiding 3C higher which Richmond Park is 1C cooler than it’s surroundings.
There is a positive correlation between high surface temperatures and high density urban areas, the relatively cool areas to the southwest coincide with the large open and green spaces of Richmond Park

552
Q

How can you investigate the presence of an urban heat island

A

By taking a temperature readings for a transfer from a transect from the rural-urban fringe through the urban centre and out to the other side of the settlement

553
Q

How can an alternative view of London’s UHI be gained

A

From the analysis of surface temperatures as measured by infrared cameras located on satellites

554
Q

What are 5 strategies to reduce the urban heat island effect

A
Urban planning and design have focused the strategies:
Cool surfaces.
Green roofs.
Urban Greening.
Sky view factors.
Cool cars.
555
Q

How would cool surfaces help combat the urban heat island effect

A

Cool roofs built from materials with high solar reflectance or albedo absorb and store less solar energy during the day and thus are not major emitters of heat into the urban atmosphere at night. Cool pavements are being trialled around the world.

556
Q

How do green roofs combat the urban heat island effect

A

They consist of a growing medium planted over a waterproof membrane, they can reduce rooftop temperatures by 20-40*C on a sunny day. They can also reduce rainwater run-off, act as insulators and increase urban biodiversity by providing habitat space for birds and animals.

557
Q

How does urban greening help combat the urban heat island effect

A

Planting trees and vegetation provides shade (surface peak temperature reductions of 5-20*C may be possible) and can have a natural cooling effect as seen by lower temperature in urban parks around the world. Urban trees act as a carbon store and can reduce urban flooding by intercepting rainfall and filter pollutants from the air.

558
Q

Example of a green roof

A

The curving green roof structure of the School of Art, Design and Media At Nanyang Technological University in Singapore

559
Q

What is a sky view

A

Sky view describes the relative openness between buildings in an urban area.

560
Q

How does the sky view contribute to the urban heat island effect

A

A restricted sky view, as found for narrow streets and tall buildings, will reduce the escape of heat from street and building surfaces. This contributes to the accumulation of heat within ‘street canyons’ and lead to the increase of air temperatures.

561
Q

How does changing the sky view factor combat the urban heat island

A

If streets are angled perpendicular to the prevailing wind, during intense urban heat island events this will reduce the chance of ventilation and removal of heat and pollutants that accumulate between buildings

562
Q

How does cool cars help combat the urban heat island

A

A lighter coloured car shell reflects more sunlight than a traditionally dark car shell. This cools the inside of the car and reduces the need for air conditioning. Cars contribute to the higher temperatures and pollution levels experience and so the use of cool cars would benefit the cities and drivers significantly

563
Q

What did a recent study find about the effect of temperature on car colour

A

After parking in the sun for an hour, a silver Honda Civic (0.57 albedo) has a cabin air temperature about 5-6*C lower than an otherwise identical black car (0.05).

564
Q

Why is rainfall higher over urban areas than rural areas

A

Because higher urban temperatures encourage the development of lower pressure over cities in relation to the surrounding area.

565
Q

Which rainfall tends to be heavier and more frequent

A

Convection rainfall

566
Q

What are 5 reasons convection rainfall is more heavy and frequent, along with thunder and lightning

A

The urban heat island generates convection.
Presence of high-rise buildings and a mixture of building heights induce air turbulence.
Surface winds are drawn from the surrounding rural area.
City pollution can increase cloud formation and rainfall.
Cities may produce large amounts of water vapour.

567
Q

How does the urban heat island generate convection

A

As ground surfaces are heated, rapid evapotranspiration takes place and can result in cumulus cloud and conventional weather patterns

568
Q

What does the presence of high rise buildings and a mixture of buildings heights induce

A

Air turbulence and promotes increased vertical motion

569
Q

How are surface winds drawn in from surrounding areas

A

Due to low pressure caused by rising air

570
Q

How does surface winds being drawn from the surrounding rural area cause convection rainfall

A

The air converges as it is forced to rise over the higher urban canopy, a similar process occurs as the prevailing winds move over the city. Friction from the urban boundary creates an orographic process but the moving air may split apart due to the barriers created by high rise buildings. As the air comes back together downwind of the high buildings, they are thought to converge and rise upwards forming rain clouds.

571
Q

Example of an orographic process

A

A mountain barrier

572
Q

How does the city population increasing cloud formation and rainfall cause rainfall

A

Pollutants act as hygroscopic (water attracting) nuclei and assist in raindrop formation. Also some suggestion that city pollution enhances the chance of lightening as the cloud droplets take on different electrical charges

573
Q

Why do cities produce large amounts of water vapour

A

From industrial sources and power stations

574
Q

What have studies shown about rainfall in urban areas

A

That rainfall downwind of major urban areas can be as much as 20% greater than it is in upwind areas.

575
Q

Why is rainfall in downwind areas more than in upwind areas

A

The hearing of the surface and the overlying air creates instability in the atmosphere that encourages air to rise. As it rises, it cools, and water vapour condensed into rain that falls downwind of the city

576
Q

In cities why did the occurrence of fog increase

A

It happened along with industrialisation

577
Q

What do records of London weather show about fog

A

That in the early 1700s there would have been about 20 days of fog every year but by the end of the 1800s this had risen to over 50 days.

578
Q

What was discovered in the 1950s about fog

A

That the average number of particles in city air in the more developed world was much greater than in rural areas. The particles acted as condensation nuclei and encouraged fog formation at night, usually under high-pressure weather conditions

579
Q

In the Uk which act was established in the 1950s to combat the increase of fog

A

The Clean Air Acts

580
Q

What did the Clean Air Acts of the 1950s result in

A

A dramatic reduction in smoke production and particulate emissions, and a decrease in the number of foggy days

581
Q

What are cities that are undergoing more recent industrialisation events experiencing

A

More fog

582
Q

Where do thunderstorms develop

A

In hot humid air

583
Q

What are thunderstorms characterised by

A

Violent and heavy precipitation associated with thunder and lightning.

584
Q

In urban areas when are the chances of thunderstorms increased

A

During late afternoon and early evening in the summer months

585
Q

In what conditions do thunderstorms form

A

By conventional uplift under conditions of extreme instability

586
Q

How are thunderstorms created

A

Updraught of air through the central area of the towering cloud causes rapid cooling and condensation. THis leads to the formation of water droplets, hail, ice and super-cooled water, which coalesces during collisions in the air. During condensation, latent heat is released that further fuels the convectional uplift. As raindrops are split in the updraught, positive electrical charges build up in the cloud. When the charge is high eneough to overcome resistance in the cloud, or in the atmosphere, a discharge occurs to areas of negative charge in the cloud or to the earth. This produces lightning. The extreme temperatures generated cause a rapid expansion of the air which develops a shock wave. This is heard as thunder.

587
Q

What is channelling

A

Wind redirected down long straight canyon like streets where there is less friction. These are sometimes referred to as urban canyons

588
Q

What is the Venturi effect

A

The squeezing of wind into an increasingly narrow gap resulting in a pressure decrease and velocity increase

589
Q

What do urban structures and layouts have an effect on

A

Wind speed, direction and frequency

590
Q

What can cause changes in wind speed and direction

A

Buildings can exert a powerful frictional drag on the air moving around them

591
Q

What are the three main types of effect wind can have

A

Average wind speeds are lower in cities than in the surrounding areas and they are lower in city centres than in suburbs.
Wind can be powerful that it makes the buildings sway and knocks pedestrians of their feet.
Conventional processes can draw in strong localised winds from cooler surrounding areas.

592
Q

Why are average wind speeds lower in cities than surrounding areas

A

The surface area of cities in uneven because of varying heights of the buildings. The buildings exert a powerful frictional drag on air moving over and around them. This creates turbulence, giving rapid and abrupt changes in both wind direction and speed.

593
Q

How can wind be powerful enough that it makes buildings sway and knocks pedestrians over

A

High rise buildings may slow air movement but they also channel air into the canyons between them making the wind in such places powerful

594
Q

When do connections processes draw in string localised winds from cooler surrounding areas

A

On calm and clear nights when the urban heat island effect is at its greatest

595
Q

Briefly how does a single building modify an airflow passing over it

A

Air is displaced upwards and around the sides of the building and is also pushed downwards in the lee of the structure

596
Q

Explain how the windward side of a building causes the wind to be displaced

A

The air pushes against the wall here with relatively high pressure.
The air flows around the sides of the building and becomes separated from the walls and roof and sets up suction in these areas.
On the windward side the overpressure; which increases with height, causes a descending flow.
This forms a vortex when it reaches the ground and sweeps around the windward corners.

597
Q

When is the vortex which is caused by wind passing a building increased

A

If there is a small building to windward

598
Q

In the lee side of a building, what happens

A

There is a zone of lower pressure, causing vortices behind it.

599
Q

When may the Venturi effect take place

A

It two separate buildings allow airflow between them

600
Q

How is the Venturi effect avoided

A

Some buildings have gaps in them or are built on stilts or podiums

601
Q

What is essential to remove pollution

A

A reasonable flow of air at street level

602
Q

What can reduce ground level wind nuisance

A

Building design such as pitches over doorways avoid pedestrian being down-blasted by wind

603
Q

What does the disturbance to the airflow because of building depend on

A

The height of the buildings and the spacing between them, if building are widely spaced, each building will act as an isolated block, but if they are closer, the wake of each building interferes with the airflow around the next structure and this produces a complex pattern of airflow

604
Q

When building are designed what is important

A

That pollution emitters (chimneys) are high enough to ensure that pollutants are released into the undisturbed flow above the building and not into the lee eddy or the downward flowing air near the walls

605
Q

What are four titles of pollutants

A

Carbon monoxide
Nitrogen dioxide
Particulars matter
Sulphur dioxide

606
Q

Describe carbon monoxide

A

A colourless, tastless, odourless, poisonous gas produced by incomplete combustion

607
Q

Causes of carbon monoxide in the atmosphere

A

The road transport is responsible for almost 90% of all carbon monoxide emissions in the Uk. Concentrations tend to be highest close to busy roads

608
Q

Impacts of carbon monoxide

A

It affects the transport of oxygen around the body by the blood. Breathing in low levels can result in headaches, nausea and fatigue

609
Q

Describe nitrogen dioxide

A

It reacts with hydrocarbons in the presence of sunlight to create ozone, and contributes to the formation

610
Q

Causes of nitrogen dioxide

A

Road transport is estimated to be responsible for about 50% of total emissions of nitrogen oxides

611
Q

Impacts of nitrogen dioxide

A

It can inflame the lining of the lung and impacts are more pronounced in people with asthma.
Oxides of nitrogen can also cause accelerated weathering of buildings and acid rain.

612
Q

Describe particles or particulate matter

A

Tiny bits of solids or liquids suspended in the air

613
Q

Causes of particulate matter

A

They originate mainly from power stations and vehicle exhausts. Other particulate matter includes small bits of metal and rubber from engine wear, dust, ash, sea salt, pollens and soil particles

614
Q

Impacts of particulate matter

A

Particles smaller than about 10 micrometers are referred to as PM10 and can settle in the airway and deep in the lungs, causing health problems

615
Q

Describe sulphur dioxide

A

A colourless has with a strong odour produced when a material or fuel containing sulphur is burned

616
Q

Cause of sulphur dioxide

A

In the UK the major contributors are coal and oil burning by industry such as power stations and refineries rises

617
Q

Impacts of sulphur dioxide

A

Short term exposure may cause coughing, tightening of the chest and narrowing of the airways. Sulphur dioxide can also produce haze, acid rain, damage to lichens and plants and corrosion of buildings

618
Q

What is air quality in urban areas compared to rural areadb

A

It is often poorer

619
Q

What is particulate air pollution caused by

A

The release of particles and noxious gases into the atmosphere

620
Q

Can emissions of particles be natural

A

Yes

621
Q

What are produced from vehicles and industrial processes

A

A combination of dust, soot and gases which have negative impact on human health

622
Q

How does air pollution vary

A

With the time of the year and with air pressure

623
Q

How much can concentrations of pollutants increase in winter and why

A

5 or 6 cold because temperature inversions trap them over the city

624
Q

What does the mixture of fog and smoke particulates produce

A

Smog

625
Q

When was smog common in European cities and why

A

Through the nineteenth and first half of the twentieth centuries because of the high incidence of coal burning.

626
Q

Why was many of the smogs in Britain known as ‘pea-suppers’

A

They were so thick

627
Q

Example of smog in the UK

A

In London 1952, smog in London was responsible for more than 4,000 deaths

628
Q

Why is photochemical smog an increasing concern

A

Photochemical oxidants (ozone and perixycetyl nitrate - PAN) are associated with damage to plants and a range of discomforts to people including headaches, eye irritation, coughs and chest pains.

629
Q

What causes production of ozone (the low level ozone not the high level ozone in the atmosphere)

A

The action of sunlight on nitrogen oxides and hydrocarbons in vehicle exhaust gases causes a chemical reaction which results in the production of ozone

630
Q

What does the high level ozone do

A

Protects the earth from damaging ultraviolet radiation

631
Q

When is photochemical smog a particular hazard

A

During anticyclonic conditions

632
Q

Why is photochemical smog particularly hazardous during anticyclonic conditions

A

Because once the air has descended it is relatively static owing to the absence of wind. Such weather systems tend to be stable and can persist for weeks during the summer months.

633
Q

Who has reducing air pollution in cities become increasingly important for

A

National and local governments

634
Q

What are the 3 pollutions reduction policies

A

Clean Air Acts
Vehicle Control and Public Transport
Zoning of industry

635
Q

After what did the British government decide legislation was needed to prevent so much smoke entering the atmosphere

A

The catastrophic London smog of 1952

636
Q

What did the Clean Air Act of 1956 introduce

A

Smoke free zones into urban areas and this policy slowly began to clean up the air

637
Q

Examples of the 1956 Clean Air Acts being reinforced by later legislations

A

In the 1990s tough regulations were imposed on levels of airborne pollution, particularly on PM10s.
Local councils in the Uk are now required to monitor pollution in their area and to establish Air Quality Management Areas where levels are likely to be exceeded.

638
Q

While in London the air quality standards have in improve, what were the 2015 NOx emissions

A

Higher than the UK and European Law recommend

639
Q

Why have measures to clean up construction sites in London been introduced

A

Because they are responsible for around 12% Of London’s NOx emissions (nitrogen oxides)

640
Q

What have been introduced in London to reduce NOx emissions

A

Measures to clean up construction sites and the use of dust suppressants at industrial sites have been increased

641
Q

What can be effective on reducing pollution

A

Greater provision of public transport and general restrictions on polluting vehicles

642
Q

What are 8 strategies to reduce the number of cars in urban areas

A
Park and ride.
Greater use of waterways for transport (possible park and glide).
Greater provisons for cyclists.
Road schemes such as urban bypasses.
Creation of bus or car-pooling lanes.
Congestion charges.
Mass transit systems.
Banning cars from driving on certain days and alternating between cars with license plates that end in even or uneven numbers.
643
Q

Example of a mass transit system

A

The Metrolink in Manchester

644
Q

Example of provision for cyclists

A

The ‘Snake’ bridge in Copenhagen

645
Q

Example of the Congestion charge

A

Central London in 2003

646
Q

In London what will be introduced from September 2020

A

Ultra-Low Emission Zone (ULEZ).
Transport for London’s bus fleet will also be upgraded so that all double decker buses operating in central London will be hybrid and all single deck buses will be zero emission.

647
Q

What is the ULEZ that was introduce in London

A

This is where the exhaust emissions standards are set and a daily non-compliance charge introduced to encouraged cleaner vehicles to drive in central London.

648
Q

What is the hope of having an Ultra-Low Emission Zone

A

That almost all the vehicles running in central London during working houses could be zero or low emissions

649
Q

How has zoning of industry helped reduce pollution

A

Industry has been located downwind in cities if at all possible and planning legislation has forced companies to build higher factory chimneys to emit pollutants above the inversion layer

650
Q

Why do built up areas need to be drained

A

To remove surface water run-off

651
Q

Traditionally how has urban drainage been achieved

A

By using underground pipe systems to convey the water away as quickly as possible

652
Q

Why did the traditional way of urban drainage not effective

A

They were not designed to take into account the amenity aspects of drainage systems, such as water resources management, community facilities, landscaping potential and provision of varied wildlife habitats.

653
Q

Why has water quality issues become increasingly important

A

Pollutants from urban areas are being washed into rivers or into the ground and once polluted, groundwater is extremely difficult to clean up.

654
Q

What is a modern approach to urban drainage

A

Sustainable urban drainage systems (SUDS)

655
Q

Why are SUDS used

A

They deliver a more holistic approach to managing surface water and wherever possible mimic natural drainage

656
Q

How do natural landscapes precipitation differ to urban landscapes

A

Forests, wetlands and grasslands trap precipitation and then allow it to infiltrate slowly into the ground.
Impermeable urban surfaces like roads, car parks and rooftops prevent precipitation from infiltrating.

657
Q

Where does most precipitation in urban landscapes go

A

It remains above the surface where it runs off rapidly in unnaturally large amounts

658
Q

How are urban areas designed to shed water quickly

A

Slipping roofs, smooth rounded guttering and cambered roads all contribute to the rapid movement of water away from the surface.

659
Q

How does precipitation drain away in an urban environment

A

Water runs off the impermeable surfaces.
It is then gathered in smooth storm sewer systems which act like a high density drainage system.
It gathers speed and erosional power as it travels underground.
It leaves the storm drains and empties into streams, filling them rapidly.

660
Q

What are the effects of urban surfaces on the water cycle

A
Reduced evapotranspiration.
Large volumes of poor quality runoff.
Reduced infiltration.
Wastewater discharge.
Imported water + precipitation.
661
Q

Why are groundwater and soil water levels reduced in urban areas

A

Because much of the precipitation is unable to infiltrate the impermeable urban surfaces

662
Q

What are base level flows reduced in urban areas

A

Groundwater and soil water levels are reduced because of reduced infiltration and since this is the water that feeds streams during dry periods the base level flows are reduced

663
Q

What is the resultant storm hydrograph for an urban river

A

Shows a river with a flashy discharge but low base flow

664
Q

What is the result of a flashy hydrograph

A

The result is that urban areas are more likely to have flooded rivers after heavy rainfall

665
Q

What combination has meant that many people are now at risk from flooding in urban areas

A

Combination of population and urban growth along with the predicted increase in the occurrence of severe weather as a result of climate change has meant more people are at risk

666
Q

What has the Red Cross said about natural disasters

A

About half the natural disasters they dealt with in 2014 were caused by floods

667
Q

What has the Asian Development Bank (ADB) said

A

The Asians population vulnerability to inland flooding is expected to reach 350 million by 2025

668
Q

Explain the changes in a storm hydrograph for a stream following urban development compared to pre-urban development

A

The pre urban development storm hydrograph:
Gentle rising limb, longer lag time, lower peak discharge, gentle falling limb.

Post urban development storm hydrograph:
Discharge increases soon after the start of the storm, steep rising limb, short lag time, higher peak discharge, steep falling limb.

Note: the base flow of the urban river is lower than base flow of pre-urban river

669
Q

What are the issues associated with urban river catchment management

A

River flow: increased flow leads to flooding and erosion of the river bank during wet periods, decreased flow during dry weather harms fish and other aquatic life.
——>
Issues: higher water temperatures can disturb ecosystems, very high flows can overload the foul water system resulting in raw sewage on the surface.

670
Q

While flooding is important in managing catchment in urban areas, what else needs to be considered by planners

A

Pollutants can harm fish and wildlife populations, kill naive vegetation, foul drinking water supplies and make recreation areas unsafe and unpleasant. Sediment from erosion can fill spaces between rocks on the street bottom, thus reducing living space or habitat for the biological communities

671
Q

Two engineering strategies to help with flooding

A

Fail-Safe (cement and controlled, channelisation)

Safe-to-fail

672
Q

What are sustainable urban drainage systems (SUDS)

A

A relatively new approach to managing rainfall by using natural processes in the landscape to reduce flooding, control flooding and provide amenity for the community

673
Q

Examples of how a SUD works

A

Roofwater is collected in water butts for use in gardens or flows to grass channels called Swales.
Then travels on to grass basin where it is stored before release into local ditches.
Rain falling on roads or paths soaks through a permeable block paving where it is filtered and stored in the stone below, or it flows into grass channels, which have a stone filter dean underneath, before it joins the rest of the SUD system.

674
Q

What is the bioswale rain garden

A

A sloped retention area designed to capture and convey water while allowing it to infiltrate the ground slowly over a 24- to 48 hour period. Some of the water is soaked up by the vegetation, thereby reducing flooding by natural means

675
Q

Usually what will be in the detention ponds and Swales when the rainfall is light

A

Only a little water

676
Q

If it rains heavily what happens to the Swales and basin

A

They full for a short period protecting the areas downstream, water is collected, cleaned and stored in the local landscape, providing an attractive place for play and wildlife

677
Q

Example of a SUD in the UK

A

Moor Park Centre In Bispham, North Blackpool. It is a case study for susdrain

678
Q

What is the community for sustainable drainage

A

Susdrain

679
Q

Example of SUD in USA

A

Phoenix, Arizona has a desert climate with typical infrequent but heavy rainstorms

680
Q

What can inadequate waste disposal be linked to

A

Air and water pollution, both of which have negative impacts on human health

681
Q

What are some negatives of waste disposal

A

Pollution, which is detrimental for human health.
It is becoming increasingly expensive to deal with wastes
Space for landfill is running out and incineration is costly.
It is 5% of total greenhouse gas emissions.

682
Q

How much does waste account for of total global greenhouse emissions

A

5%

683
Q

How much does methane from landfills represent of total global methane emissions

A

12%

684
Q

What rates are increasing

A

Recycling

685
Q

While recycling rates are increasing it is clear that more needs to be done to tackle the growing waste crisis, what do some argue the first step in waste management is

A

To stop calling it ‘waste’

686
Q

Globally how much does waste increase each year

A

7%

687
Q

What accounts for the amount of waste increase each year

A

Population growth accounts for much of it but economic development also plays a role since greater personal wealth increases consumption of goods and archives and this leads to more waste

688
Q

When is the amount of municipal solid waste particularly high

A

In urban areas where there is a large concentration of people

689
Q

Why is the amount of MSW set to increase significantly over the next decade

A

It is a result of urbanisation and rising living standards

690
Q

In 2002 how many urban residents were there

A

2.9 billion

691
Q

In 2002 how much MSW did each person generate

A

0.64 kg

692
Q

In 2012 how much did the population increase

A

To about 3 billion

693
Q

In 2012 how much did each person generate of waste

A

1.2kg

694
Q

Why is solid waste seen as an ‘urban issue’

A

Because urban residents produce about twice as much waste as their rural counterparts

695
Q

Globally what do rural dwellers tend to be

A

Poorer, purchase fewer store-brought items (which results in less packaging), and have higher levels of reuse and recycling

696
Q

Does waste generation varies significantly between cities

A

Yes

697
Q

In 2010 what were rates of waste production

A

Much higher in cities in HICs

698
Q

Why in 2010 were rates of waste production much higher in cities in HICs

A

Waste generation tends to be greater where disposable incomes and living standards are higher

699
Q

Which cities are set to be the biggest increase in waste generation over the next decade

A

Cities in low and middle income countries as a result of rapid urbanisation and continued industrialisation

700
Q

Which city is the amount of municipal solid waste growing fastest in

A

China, it overtook the US as the worlds largest waste generator in 2004

701
Q

What is an interesting finding to come out of studies on urban waste managment

A

That both richer and poorer cities in a region often outperform middle-income ones

702
Q

What do the average residents of Kuala Lumpur (middle income) use of water and produce of waste

A

497 litres of water.

816 kilograms of waste.

703
Q

What do the average residents of Singapore (rich income) use of water and produce of waste

A

309 litres of water.

307 kilograms of waste.

704
Q

What does the average resident of Delhi (poor) use of water and produce of waste

A

209 litres of water.

147 kilograms of waste.

705
Q

What is atmospheric pollution caused by

A

The release of particles and noxious gases into the atmosphere

706
Q

In 2014 what did the WHO find about urban air pollution

A

It was 2.5 times higher than the recommended levels in about half of the urban populations being monitored, which puts urban dwellers at risk

707
Q

How many Londoners died prematurely in 2010 because of air pollutants

A

9,400

708
Q

In London what air pollutants were people exposed to that caused them to die prematurely

A

Nitrogen dioxide

Fine PM2.5 particles

709
Q

While human activity produces air pollutants what determines what will happen to them once they are released

A

The weather. During wet or windy conditions pollution concentrations remain low, either blown or washed away. During periods of hot, still weather, pollution is able to build up harmful amounts, leading to what is known as pollution episodes

710
Q

What are pollution episodes

A

During periods of hot, still weather pollution is able to build up

711
Q

Somewhere in the midst of economic growth what appeared to overtake sustainability

A

Consumption

712
Q

When is consumption controlled

A

When a city becomes comparatively wealthy

713
Q

What is the ‘tipping point’ to controlling consumption in Asia

A

A per capita GDP of around US $20,000

714
Q

What is urban waste made up of

A

Millions of separate waste items

715
Q

What are the 6 sources of waste

A
Residential.
Industrial.
Commercial.
Institutional.
Construction and demolition.
Urban services.
716
Q

Which kinds of waste are easiest to manage

A

Large waste items such as organically (food and horticultural waste) and papers

717
Q

Which wastes are pose disproportionately large problems for disposal

A

Wastes such as multi-laminates, hazardous (for example syringes) and e-waste

718
Q

Why is difficult to dispose of waste a particular concern for low income countries

A

They may not have the facilities to properly dispose of them safely

719
Q

Annually how much hazardous waste is deposited in Cairo

A

50,000 tonnes

720
Q

What does the composition of waste vary according to

A

A number of records such as level of economic development, cultural norms, geographical location, energy sources and climage

721
Q

As a country urbanises and population becomes wealthier what happens

A

Consumption of inorganic materials like plastics, paper and aluminium increases , while the relative organic proportion decrease

722
Q

What percentage of organic matter is in the urban waste stream for low and middle income countries

A

Ranging from 40 to 85%

723
Q

What is the costs of collecting and treating waste

A

High

724
Q

In lower income countries what is solid waste management

A

It is usually a city’s single largest budgetary item

725
Q

In low income countries how much to urban authorities spect of their budget on solid waste management

A

20-50%

726
Q

Environmentally waste is a large source of what

A

Methane, a powerful greenhouse gas.

It also contributes to water, ground and air pollution.

727
Q

What is a waste generator of residential waste

A

Households

728
Q

Types of residential waste

A
Food waste.
Paper.
Cardboard.
Plastics.
Textiles.
Leather.
Take waste.
Wood.
Glass.
Metals.
Ashes.
Household hazardous wastes like paints and aerosols.
E-wastes like computers.
Special wastes like batteries and oils and tyres.
729
Q

What is a waste generator of industrial waste

A

Light and heavy manufacturing, fabrication, construction sites, power and chemical plants

730
Q

Types of industrial waste

A

Housekeeping wastes, packaging, food wastes, construction and demolition materials,hazardous wastes, ashes, special waste

731
Q

What is a waste generator of commercial waste

A

Stores, hotels, restaurants, markets, office buildings

732
Q

Types of commercial waste

A

Paper, cardboard, plastics, wood, food wastes, glass, metals, special wastes, hazardous wastes, e-waste

733
Q

What is a waste generator of institutional waste

A

Schools, hospitals (non medical wastage), prisons, government buildings, airports

734
Q

Examples of institutional waste

A

Same as commercial: Paper, cardboard, plastics, wood, food wastes, glass, metals, special wastes, hazardous wastes, e-waste

735
Q

What is a waste generator of construction and demolition

A

New construction sites, road repair, renovation sites, demolition of buildings

736
Q

Examples of construction of demotion waste

A

Wood, Steel, concrete, dirt, bricks, tiles

737
Q

In someone’s what percentage of the total waste steam is construction and demolition waste

A

40%

738
Q

What is a waste generator of urban services

A

Street cleaning, landscaping, parks, beaches, other recreational areas, water and wastewater treatment plants

739
Q

Examples of waste created by urban services

A

Street sweepings, landscape and tree trimmings, general wastes from parks, beaches, and other recreational areas, sludge

740
Q

What can untreated or uncollected waste lead to

A

Health problems such as respiratory ailments, diarrhoea, cholera and dengue fever

741
Q

What was the 2012 World Bank report on waste

A

It found that 30-60% of urban solid waste in lower income countries is uncollected

742
Q

In Cairo what percentage of daily waste is collected or disposed of in an appropriate way

A

40%

743
Q

Where does the other 60% of Cairo’s waste go if not disposed of correctly

A

It is simply dumped in the desert

744
Q

What are cities running out of

A

Landfill space

745
Q

What does waste management generally follow

A

An accepted hierarchy

746
Q

What is the key target of waste management

A

To reduce the amount of waste produced in the first place

747
Q

How can reducing the amount of waste produced be done

A

Through a combination of waste related legislation, education and financial incentives

748
Q

What can waste disposal occur through

A

Incineration or landfill

749
Q

What is the waste hierarchy

A
Most preferred option: 
Reduce 
Reuse
Recycle
Recover (digestion, composting)
Landfill
Incineration (with energy recovery)
Controlled dump
\: least preferred option
750
Q

What is a controlled dump

A

One in which there has been site selection, controlled access and possibly compaction of waste. The bottom ash, non combustibles and by passed waste from incineration all go to landfill

751
Q

Which waste management strategies are waste disposal

A

Incineration

Controlled dump

752
Q

Which waste management strategies are waste diversion

A
Reduce
Reuse
Recycle
Recover 
Landfill
753
Q

What are he most common methods of waste disposal in high income countries

A

Landfiling and thermal treatment

754
Q

How do most low and lower middle income countries dispose of their waste

A

Waste in open dumps, some of this disposal may be unregulated

755
Q

What does unregulated mean

A

It is not controlled or supervised by regulation of law

756
Q

What can solid waste that is not properly collected and disposed of be

A

A breeding ground for insects, vermin and scavenging animals and can thus pass on air and water borne disease

757
Q

What did a survey conducted by by UN-Habitat in 2009 find

A

That in areas where waste is not collected frequently, the incidence of diarrhoea is twice as high and acute respiratory infections six times higher than in areas where collection is frequent

758
Q

What do environmental threats from waste management include

A

Contamination of groundwater and surface water by leachate, as well as air pollution from burning of waste that is not properly collected and disposed of

759
Q

What is resource recovery

A

The selective extractions of disposed materials for a specific next use, such as recycling, composting or energy generation

760
Q

When is recycling carried out

A

When materials from which the items are made can be reprocessed into new products

761
Q

In recent years what has the global market for recyclables been doing

A

Increasingly significantly

762
Q

What is the world market for post consumer scrap metal estimated at

A

400 million tonnes annually and around 175 million tonnes annually for paper and cardboard (UN-Habitat 2009)

763
Q

What is the world market for post consumer scrap global value

A

At least $30 billion per year

764
Q

Where does recycling occur in low and middle income countries

A

Through an active, although usually informal, sector

765
Q

What estimate percentage of the urban population survive by salvaging recyclables from waste

A

1%

766
Q

What can save significant energy

A

Manufacturing new products using recited materials

767
Q

How much less energy does producing aluminium from recycled materials take than producing it form virgin materials

A

95% less

768
Q

What is urban mining

A

The name given to the process of recovering compounds and elements from products, buildings and waste which would otherwise be left to decompose in landfills

769
Q

By collecting and salvaging valuable components to be reused and recycled what is there a greater chance of

A

Reducing landfill waste

770
Q

What are the key advantages of recycling and recovery

A

Reduced quantities of disposed waste and the return of materials to the economy

771
Q

What are the negative environmental issues of recycling and recovery

A

Energy may be required for the operation of material recovery from waste and this leads to greenhouse gas emissions.
Informal recycling by waste lickers will have little greenhouse gas emissions, except for processing the materials for sale or reuse which can be relatively high if improperly burned (for example metal recovery from e-waste)

772
Q

What are the different methods of waste management and disposal

A

Recycling and recovery.
Trade.
Reduction (incineration).
Burial (landfill).

773
Q

What is the global waste trade

A

The international trade of waste between countries for further treatment, disposal, or recycling

774
Q

What happens to toxic or hazardous waste is the global waste trade

A

It is often exported from high to low income counties as seen in the example of e-waste

775
Q

Why are hazardous wastes not properly treated or disposed of

A

Because the waste is exported to low income countries but they do not often have safe recycling processes or facilities and hazardous wastes are not properly disposed of or treated

776
Q

What can un-properly treated hazardous waste lead to

A

Contamination of the surrounding environment

777
Q

What laws have been introduced to prevent movement of toxic waste

A

International laws such as the Basel Convention

778
Q

What has international laws such as the Basel Convention been introduced for

A

To prevent transboundary movement of hazardous waste but evidence suggests it still happens

779
Q

How much can incineration of waste reduce the volume of disposed waste

A

By up to 90%

780
Q

How can general waste produce electricity and heat

A

If it’s safely burned at high temperatures and under carefully controlled conditions

781
Q

Why is incineration without energy recovery not a preferred option of waste management

A

Due to its cost and pollution

782
Q

When is the open burning of waste common

A

In poorer countries

783
Q

Why is the open burning of waste particularly discouraged

A

Due to severe air pollution associated with low temperature combustion

784
Q

What has a rapidly growing surplus of electronic waste around the world result from

A

Quickly evolving technological advances

785
Q

What is the estimation for how much e-waste is produced each year

A

50 million tonnes

786
Q

What did the UN Step report in 2013

A

That e-waste is the worlds fastest growing waste stream

787
Q

Where does much of the e-waste come form

A

The USA and Europe

788
Q

Examples of countries e-waste is shipped to

A

Poorer countries in Asia and Africa

789
Q

What toxic substances are usually found in electronic goods

A
Lead 
Mercury 
Cadmium
Arsenic
Flame retardants
790
Q

Why do people who work in informal waste sites for e-waste in poorer countries often suffer bouts of poor health

A

Once in a land fill the toxic materials in electronic goods seep into the environment, contaminating land, water and the air

791
Q

What is burial

A

The placement of waste in man made or natural excavations, such as pits or landfills

792
Q

What are landfill sites

A

A common final disposal site for waste in urban areas

793
Q

What may a landfill site be in low income countries

A

Simply a hole in the ground where open dumplings occur

794
Q

Describe landfill sites in high income countries

A

Much stricter regulations and the types of materials that can be sent to landfill are often defined by law.

795
Q

What are landfill sites like in the UK

A

Most landfill sites now control and collect the gas that is released by the decomposing waste, often using it to generate electricity through turbines

796
Q

What is the greenhouse gas methane produce by in a landfill

A

Rotting organic matter

797
Q

In a landfill site what else besides methane can cause harm

A

Bleach and ammonia can produce toxic gases that negatively impact the quality of air in the vicinity.
Dust and other forms of non-chemical contaminants can also make their way into the atmosphere.
Landfills can affect ground water and river quality because toxic chemicals can leach out and contaminate the water.

798
Q

Advantages to landfill

A

Facilities are properly suited with necessary controls.

Different types of waste accepted and ordered.

799
Q

Advantages of incineration

A

Can reduce the volume of waste needing disposal by 90%.
Can inactivate disease agents.
Can reduce toxicity of waste.
Can be used to produce energy.
Incinerator bottom ash can be recycled as a secondary aggregate.

800
Q

Disadvantages of landfill

A

Unsightly.
Often opposed by neighbouring residents.
Potential leaching of chemicals threatens groundwater supply.
Decaying matter produces methane, a strong greenhouse gas which is also explosive.
Landfill takes up a lot of space.
High transportation costs.

801
Q

Disadvantages of incineration

A
Expensive.
Not all waste is combustible.
Poses challenges of air pollution and incinerator bottom ash disposal.
Capacity limitations.
Unpopular with local residents.
802
Q

What has been banned by international conventions about waste disposal

A

The actual submergence if waste in oceans

803
Q

According to the United Nations, what have some companies been doing with radioactive waste and hazardous materials

A

Dumping them into the coastal waters of Somalia, taking advantage of the fact that the country lacks strong governance

804
Q

Where do enviornmental problems tend to be worse and what is the impact

A

Worse in poorer cities experiencing rapid growth and impacts most severely on the more vulnerable groups with that urban society

805
Q

What is the main problems concerns of urban areas

A

Pollution of the air, water and waste disposal and urbanisation leading to a loss of land and therefore habitats. Noise pollution also.

806
Q

By 2030 what is the estimated expansion of Urban land area

A

Expanded by as much as 3.3 million square kilometres

807
Q

What is the CBO

A

The cities and Biodiversity Outlook project

808
Q

What did the CBO project say the expansion of urban areas will cause

A

‘A considerable loss of habitat in key biodiversity hotspots’ in cities such as flood plains, estuaries and coastlines

809
Q

In Shenzen China how much of the population complained more about noise pollution than air or water pollution

A

3/4

810
Q

What is noise pollution linked to

A

Traffic and industry

811
Q

What are the three biggest environmental treats facing cities in the twenty-first century

A

Atmospheric pollution
Water pollution
Dereliction

812
Q

What are 4 some simpler measures fo improve air quality

A

Ensuring that houses are energy efficient.
Urban development is well served by public transport routes.
Street design is safe and appealing for pedestrians and cyclists.
Waste is well managed.

813
Q

What is a well known environmental company

A

AECOM

814
Q

What has AECOM calculated about londons trees

A

That londons 8.3 million trees provide £95 million worth of air filtration every year in terms of health costs avoided

815
Q

What can all the strategies to manage air pollution serve to do

A

Act as a catalyst for local economic development and the promotion of healthy urban lifestyles

816
Q

What does the Daily Air Quality Index (DAQI) air to do

A

Detail the level of air pollution in the UK and provide recommended actions and health advice

817
Q

For European cities, how often is the Urban Air Quality Index updated

A

Every hour and allows comparison of air quality over a 24-hour period

818
Q

What does UK-AIR do

A

Provides automated tweets about current and forecast air quality including episodes of poor air quality

819
Q

What is over 90% of air pollution in low and middle income cournriss due to

A

The high number of older vehicles, poor vehicle maintenance and low fuel quality

820
Q

Recently what schemes have been introduce in low to middle income countries to manage air pollution C

A

UN partnership for Clean Fuels and Vehicles air to improve air quality, there have been greater investment in improving road quality and commitments have been made to promote non-motorised journeys

821
Q

What is water pollution

A

The contamination of water sources including rivers, lakes, oceans, aquifers and groundwater

822
Q

When does water pollution occur

A

When pollutants are directly or indirectly discharged into water without adequate treatment to remove harmful compounds.

823
Q

Examples of indirect water pollution

A

Contaminants that enter the water from soils or groundwater or from the atmosphere via rain

824
Q

What do the high concentration of impermeable surfaces in urban areas increase

A

Run-off from roads and can carry numerous pollutants such as oils, heavy metals, rubber and other vehicle pollutants into water ways and streams.
Reduction in water percolation into the ground which also affect the quantity and quality of ground water.
Increase stormwater runoff in urban areas which can overwhelm combined stormwater and wastewater treatment systems when high flows exceed treatment capacities.

825
Q

What do reports suggest about urban stormwater

A

It can be just as polluted as untreated domestic wastewater

826
Q

What are 6 causes of water pollution in urban areas

A

Surface run off from streets carry contaminates from motor vehicles.
Industrial waste.
Poorly/untreated sewage.
Rubbish dumps, toxic waste, chemical and fuel storage which can all leak pollutants.
Intentional dumping of hazardous substances.
Air pollution can lead to acid rain, nitrate deposition and ammonium deposition.

827
Q

Why is untreated/poorly treated sewage a problem

A

It is Los in dissolved oxygen and high in pollutants such as nitrates, phosphorus and bacteria

828
Q

What can treated sewage still be high in

A

Nitrates

829
Q

How is acid rain, nitrate deposition and ammonium deposition a cause of water pollution

A

It can alter the water chemistry of an area

830
Q

How many people lack access to clean water

A

Over 1.2 billion

831
Q

What percentage of waterborne infections account for all infectious diseases

A

80%

832
Q

What does increased water pollution create

A

Breeding ground for malaria-carrying mosquitos as well as damaging ecosystems, leading to species extinction

833
Q

How does this form of water pollutant affect human health: heavy metals

A

Heavy metals From industrial processes can slow development, resulting in birth defects and may be carcinogenic

834
Q

How does this form of water pollutant affect human health: industrial waste

A

It often contains toxic compounds that damage the health of aquatic animals and those who eat them. They can cause immune suppression, reproductive failure or poisoning

835
Q

How does this form of water pollutant affect human health: microbial pollution

A

Comes from sewage and often results in infectious diseases that infect aquatic life and terrestrial life through drinking water.

836
Q

Examples of the diseases caused by microbial pollution

A

Cholera and typhoid fever which are a major cause of infant mortality in low income counties

837
Q

How does this form of water pollutant affect human health: organic matter and nutrients

A

They can cause an increase in aerobic algae and deplete oxygen from the water. This can lead to the suffocation of fish and other aquatic organisms

838
Q

How does this form of water pollutant affect human health: suspended particles

A

In freshwater, reduces the quality of drinking water for humans and the aquatic environment for marine life. They can also reduce the amount of sunlight penetrating the water, disrupting the growth of photosynthetic plants and micro-organisms.

839
Q

Why does improving water quality requires strategies

A

To prevent, trust and remediate water pollution

840
Q

Ideally, how would one manage water pollution

A

By preventing pollutants from entering water courses in the first place

841
Q

In reality, what is the way to manage water pollution

A

Treating potential pollutants before they are discharged.

842
Q

What is the final and often most expensive strategy of managing water pollution

A

Polluted watercourses being restored through remediation

843
Q

In high income countries, what does water quality improvements focus on

A

Construction of water treatment facilities and wastewater plants.
Regulations aimed at ‘point source’ polluters such as industries which discharge water pollution into receiving water or sewer systems that flow into treatment plants.

844
Q

What is the most difficult water-quality challenge

A

Dealing with ‘non-point source’ pollution which is the result of precipitation run-off from a wide range of sources including fertilisers and pesticides from agriculture, and chemicals and toxins from urban settlements. These pollutants are difficult to regulate

845
Q

In Low income countries what has resulted in lower water quality standards

A

Lack of money and inadequate technology.

Effecfive legislation is often absent and enforcement of pollution controls are limited.

846
Q

What are the five key water pollution strategies

A
Low impact development (LID)
Legislation, regulation and enforcement
Education snd awareness
Improvements in sewage and wastewater processing
Appropriate technology
847
Q

What is low impact development

A

A stormwater managment approach that can help to reduce stormwater run-off

848
Q

What is LID primarily done

A

The use of vegetation and permeable surfaced to allow infiltration of water into the ground. Permeable streets and pavements, green roofs, rain gardens and more urban parks allow water infiltrate into soils rather than flow directly into sewers

849
Q

What has filtering stormwater stormwater through vegetation and soil been shown to reduce

A

Organic pollution, oils and heavy metals by more than 90%

850
Q

How do legislation, regulations and enforcement become a key water pollution strategy

A

There are many different anti-pollution laws and agreements in operation worldwide. But these laws need to be enforced.

851
Q

How is legislation and enforcement a key water pollution strategy

A

Some cities have adopted incentive-based approaches charging polluters per unit. Charges start low but are increased if pollution counties, creating an incentive to rescue discharges and purchase wastewater treatment technologies.

852
Q

How are regulations a key water pollution strategy

A

Factories are allowed to discharge only limited amounts of carefully controlled pollutants. By slowly reducing the levels of permitted discharges, year by year, pollution levels are reduced

853
Q

How does education and awareness help manage water pollution

A

the more prone Who about the causes and effects of pollution the more likely they will avoid adding to it

854
Q

In 2014 what did Wessex Water use

A

Mobile billboards in hotspot areas urging people to bin wet wipes rather than flush them down the toilet as they are a common cause of sewer blockages since they do not decompose like toilet paper

855
Q

Example of appropriate technology being a key water pollution strategy

A

Janicki omniprofessor - a small scale innovation aimed st providing clean water in low income countries. It first boils raw sewage sludge during which the vapour is seperated from the solid. Solids then put into fire producing steam and driving an engine producing electricity for the systems processor and for the community. Water is put through a cleaning systems to produce drinking water.

856
Q

What is dereliction

A

Refers to the state of having been abandoned and become dilapidated

857
Q

What are derelict buildings often associated with urban areas

A

Former industrial sites or run-down housing estates

858
Q

In the UK how did buildings become derelict

A

De-industrialisation led to many people leaving the inner city and industrial buildings were abandoned.
Alongside this, services such as public houses and ships may have become vacant as areas become subject to urban decline.

859
Q

What is the impact of dereliction on the surrounding area

A

Crime and vandalism rates tend to be higher.
House prices fall.
Out-migration of residents take place.

860
Q

What often discourages authorities and individuals from renovating or rebuilding

A

The high cost invoked in urban renewal

861
Q

What can significantly increase the investment needed to compact dereliction

A

The presence of listed buildings, which are subject to considerable planning regulations

862
Q

How does derelict land pose a risk to human health

A

Contamination from industrial processes lives on in an environment long after the industry that produced or used them is fine

863
Q

What is a brownfield site

A

A term used in urban planning to describe land previously used for industrial purposes or some commercial uses

864
Q

What is a greenfield site

A

An area of undeveloped land

865
Q

What is land remediation

A

The removal of pollution or contaminants from the ground, which enables areas of derelict form industrial land to be bought back into commercial use

866
Q

What is one of the most common strategies for tacking urban dereliction

A

Through regeneration schemes such as Urban Development Corporations, City Challange And New Deal for Communities which have had fading levels of success

867
Q

What does the government try to build new developments on

A

Brownfield sites rather than greenfield sites

868
Q

Between 1997 and 2009 what did the proportion of dwellings (including conversions) built on brownfield sites increase to

A

From 56 to 80%

869
Q

What did the proportion of previous- developed land changing to residential use between 1997 and 2009 increase to

A

47 to 69%

870
Q

What proportion of dwelling in London are built in brownfield sites

A

98%

871
Q

What are the 6 advantages to using brownfield sites

A

Improved physical environment.
Revives older urban communities.
Existing infrastructure can reduce costs and encourage faster occupancy.
Preserves historical landmarks and heritage architecture.
Reduced urban sprawl.
Preserves greenfield sites.

872
Q

What are the disadvantages of using brownfield sites

A

Greater costs of clearing contaminated land.

Most brownfield sites are in the inner city, which have higher levels of traffic congestion and noise.

873
Q

What are 4 land remediation techniques

A

Soil washing.
Chemical stabilisation.
Bioremediation.
Sorting.

874
Q

What has been at the heart of Detroit’s recent strategy to tackle its derelict land areas

A

Community action

875
Q

What are three ways to deal with derelict urban sites

A

Regeneration strategies
Land remediation
Community action

876
Q

How can community action help derelict urban land

A

They can encourage small community based activities such as urban farming.
This can lead to conversion of hectares of land into community gardens and micro farms that can yield produce which can be sold to other community organisations like soup kitchens.

877
Q

What can derelict buildings be converted to

A

Community centres, cafes and greenhouses

878
Q

What do cities pose a threat to

A

Both the local and global environment

879
Q

How much do cities consume of the worlds resourcss

A

Three quarters

880
Q

What do cities generate

A

The majority of the worlds waste and pollution.

881
Q

Along with the consequences of waste disposal, pollution and dereliction in cities what else is being felt globally

A

The effects of urban growth

882
Q

What do cities rely on

A

Energy and resources from all over the world

883
Q

Where is the pollution and waste that cities generate dispersed

A

Globally

884
Q

What can the environmental impact of cities be measuring using

A

The ecological footprint calculation

885
Q

What is the ecological footprint calculation

A

The total area of productive land and water required to produce the resources a population consumed and absorb the waste produced

886
Q

In 2007 what was the average persons ecological footprint globally

A

2.7 global ha. However the variation in both between and within counties is huge

887
Q

Who tends to have a higher ecological footprint

A

Cities have a higher footprint than rural areas and wealthy cities have a higher footprint than poorer ones

888
Q

What did the ‘City Limits’ survey in London, 2003 find

A

That London’s ecological footprint covered an area twice the size of the Uk, and that if the entire population of the world made such demands, we would need at least three planets to sustain this level of activity

889
Q

What did more a recent search by the Global Footprint find

A

That SAN Francisco’s footprint was about 6% higher than the average Americans (2011) while the average footprint of residents of the ‘green city’ of Curitiba was more than 40% higher than the Brazilian average (2010)

890
Q

What is a high ecological footprint in cities attributed to

A

The greater affluence of city residents correlating with increased consumption and waste production

891
Q

What does the concept of the ecological footprint illustrate

A

The disproportionate impact cities have on the environment

892
Q

What needs to happen to help reduce the ecological footprint of a city

A

Greater global sustainability is to be achieved

893
Q

What is one of the Post-2015 Sustainable Development Goal

A

To make cities inclusive, safe, resilient and sustainable and the city as an entity is viewed as a key factor in building a more sustainable world

894
Q

Where was the idea of sustainability first brought to wider public awareness

A

In the 1987 Brundtland Report entitled ‘Our Common Future’ by the UN World Commission on Environment and Development (WCED)

895
Q

What did the Brundtland Report state

A

‘Sustainable Development was meeting the needs of he present without compromising he ability of future generations to meet their own needs’

896
Q

What are the dimensions (pillars) of sustainability

A

Social development . Economic development. Environmental managment. Urban governance.

897
Q

What is a sustainable city

A

One which provides employment, a high standard of living, a clean, healthy environment and fair governance for all its residents.

898
Q

What has increasingly been incorporated into sustainable urban design

A

People-centred planning and the notion of liveability is important here

899
Q

What is liveability

A

Characteristics of a city which improve the quality of life for the people there. But this means different things to different people, for some it is tied to natural amenities such as parks and green space; for others to cultural offerings, career opportunities, economic and political stability or some degree of safety within which to raise a family.

900
Q

In the context of the global liveability rankings, what does liveability mean

A

It related to which cities provide the best or worst living conditions for their residents

901
Q

What are the inputs into an unsustainable/ linear system of a megacity

A

Food goods.
Non-a renewable energy.
People.

902
Q

What are the outputs to an unsuitable/ linear system of s mega city

A

Waste (organic, inorganic) (landfill, dumped in rivers/seas)
Air pollution (carbon, nitrogen and sulphur dioxide, ozone), noise
Goods, services, wealth, sprawl

903
Q

What are the components of an sustainable/ circular system of an ecosystem

A

Inputs, recycling of inorganic waste (paper, plastics etc), recycling of organic waste (water, compost), outputs

904
Q

Examples of inputs in a sustainable/circular system of an eco city

A

Local foods and goods.
Conservation and use of renewable energy.
People.

905
Q

What are the outputs of a sustainable/ circular system in an eco city

A

Rescued outputs

906
Q

Examples of green cities

A

Copenhagen in Denmark
Curitiba in Brazil
Freiburg in Germany

907
Q

What are the two types of systems in cities

A

Unsustainable/ linear system in a megacity

Sustained/ circular system in an ecocity

908
Q

What is urban resilience

A

A twenty first century word that means The capacity of individuals, communities, institutions, businesses and systems within a city to survive, adapt and grow, no matter what kinds of chronic stresses and acute shocks they experience

909
Q

What does thinking of a city as a system enable

A

A comparison between the characteristics of a typical megacity and that of a green city

910
Q

Why is the linear system of a megacity unsustainable

A

Uncontrolled use of inputs and outputs leads to resources becoming exhausted and extremely high pollution and waste levels

911
Q

How is a circular system in a city sustainable

A

Some of the outputs are recycled, which reduces the demand for new input resources and pollution and waste levels

912
Q

What can sustainability be measured in

A

A number of different ways and different organisations will use different criteria to rank cities in terms of their sustainability

913
Q

What are terms like ‘green city’ and ‘Eco city’ used to describe

A

Cities with a good environmental record, but the range of indicators used for measuring urban sustainability needs to be far greater and incorporate the social, economic and political elements

914
Q

7 Examples of the social development pillar for achieving sustainability

A

Adequate provision of schools and health services.
A ability of foods supplies.
Green housing and buildings.
Clean water and sanitation.
Green public transport.
Green energy access.
Recreational areas and community support.

915
Q

3 examples of the economic development pillar for achieving sustainability

A

Decent employment opportunities.
Production and distribution of renewable energy.
Investment in green technology and innovation.

916
Q

5 examples of the environmental managment pillar for achieving sustainability

A
Waste and recycling managment.
Energy efficiency.
Water managment.
Air quality conservation.
Adaption to and mitigation of climate change.
Forest and soil managment.
917
Q

4 examples of the urban governance pillar of sustainability

A

Adoption of green urban planning and design strategies.
Strategies to reduce inequality.
Strengthening of civil and political rights.
Support of local, national, regional and global links.

918
Q

What are the 11 key features of a sustainable city

A

Resources and services accessible to all.
Public transport is seen as a viable alternative to cars.
Public transport is safe and reliable.
Walking and cycling is safe.
Areas of open space are safe, accessible and enjoyable.
Where possible, renewable resources are used.
Water is seen as a resource and recycled when possible.
New homes are energy efficient.
Access to affordable housing.
Cultural and social amenities are accessible to all.
Community links are strong and communities work together to deal with issues like crime and security.

919
Q

What does chronic stresses include

A

Day-to-day challenges such as high unemployment, inefficient public transport systems, endemic violence and chronic food and water shortages.

920
Q

What are acute shocks

A

Sudden events that may threaten a city including earthquakes, floods, disease outbreaks and terrorist attacks

921
Q

What must a sustainable city be able to cope with

A

The physical, social and economic challenges that are a growing part of the tenth first century

922
Q

What is the main obstacle for cities to become more sustainable

A

Financial ability

923
Q

In the context of rapidly growing urban populations and limited budgets, what do authorities tend to choose

A

Short-term cheaper solutions over long-term planning

924
Q

In cities with a large number of people lacking access to water and electricity, what do authorities tend to focus on

A

Providing basic infrastructure over invest in environmental projects and sustainable development

925
Q

What are challenges to developing sustainable cities

A
Finance.
Short term needs.
Poor infrastructure.
Weak infrastructure.
Lack of enforcement of planning regulations.
926
Q

What are the main social urban trends in developing/developed countries drawn from the United Nations World Economic and Social Survey In 2013

A

By 2025, urban population will live in mainly small and medium sized cities.
Number of urban people living in slums continues to grow.
Inefficient use of public services (water, electricity).
Ageing.

927
Q

What are the main economic urban trends in developing/developed countries drawn from the United Nations World Economic and Social Survey In 2013

A

Inequality and financial fragility.

Food insecurity.

928
Q

What are the main environmental urban trends in developing/developing countries drawn from the United Nations World Economic and Social Survey In 2013

A

Energy access.

Climate change.

929
Q

What percentage of the urban population in 2025 will live in small and medium cities

A

42% and 24%

930
Q

What are the challenges to create sustainability in developing countries because of the urban population being predicted to mainly live in small and medium sized cities

A

They need to Improve access to housing, water and sanitation; improve public infrastructure; foster institutional capacity

931
Q

What are the opportunities to create sustainability in developing countries because of the urban population being predicted to mainly live in small and medium sized cities

A

They can invest in possible public infrastructure (including transportation); construction of compact buildings in middle-income cities; strengthen the links between cities and rural areas

932
Q

What are the challenges to create sustainability in developing countries because the number of urban people living in slums continue to grow

A

They need to reduce the number of urban poor and disease risk, improve social cohesion, reduce youth unemployment

933
Q

What are the opportunities to create sustainability in developing countries because the number of urban people living in slums continue to grow

A

They can invest in universal access to affordable water and sanitation, public transport. Creation of jobs to reduce growth of slums, employment of the ‘youth’ dividend in low-income countries

934
Q

What are the challenges to create sustainability in developing countries because of the inefficient use of public services (water, electricity)

A

They need to improve waste and recycling management, support consumption of local produce, change overconsumption patterns of high income households

935
Q

What are the opportunities to create sustainability in developing countries because of the inefficient use of public services (water, electricity)

A

They can provide subsidies to households and small firms to reduce non-saving water systems and waste, incentive to local communities to improve recycling systems

936
Q

What are the challenges to create sustainability in developing countries because of the ageing population

A

They need to create productive employment for older persons

937
Q

What are the opportunities to create sustainability in developing countries because of the ageing population

A

They can invest in universal pensions, extend the working age, support family networks

938
Q

What are the challenges to create sustainability in developing countries because of inequality and financial fragility

A

They need to create policy space for inclusive development, reduce underemployment, promote economic diversification

939
Q

What are the opportunities to create sustainability in developing countries because of inequality and financial fragility

A

They can invest in green industry, adapt to climate change, structure economic change (industrial and service ‘leapfrogging’ for least developed countries) and strengthen regional corporation

940
Q

What are the challenges to create sustainability in developing countries because of food insecurity

A

They need to improve access to food and increase productivity

941
Q

What are the opportunities to create sustainability in developing countries because of food insecurity

A

They can invest in urban agriculture, local crops, storage facilities

942
Q

What are the challenges to create sustainability in developing countries because of energy access

A

They need to provide access to clean energy and reduce use of ‘dirty’ energy in poor households, they need to discourage high energy consumption in high income households

943
Q

What are the opportunities to create sustainability in developing countries because of energy access

A

They can invest in capacity development, energy-saving devices, production and use of renewable sources of energy; subsidies and incentives for efficient energy use and water use for middle and high income households

944
Q

What are the challenges to create sustainability in developing countries because of climate change

A

They need to reduce the impact of livelihood, reduce carbon emissions, generate financial resources for adaptation

945
Q

What are the opportunity to create sustainability in developing countries because of climate change

A

They can investment in health and education infrastructure and facilities; adapt and mitigate technology and early warning systems; green public transportation; strengthen regional cooperation for green technology transfer

946
Q

What are the challenges to create sustainability in developed countries because of the urban population being predicted to mainly live in small and medium sized cities

A

There is Social cohesion

947
Q

What are the opportunities to create sustainability in developed countries because of the urban population being predicted to mainly live in small and medium sized cities

A

They can invest in compact urban development and decentralisation

948
Q

What are the challenges to create sustainability in developed countries because the number of urban people living in slums continue to grow

A

Thy need to reduce urban unemployment due to economic crises (of youth in particular); provide adequate housing in poor neighbourhoods

949
Q

What are the opportunities to create sustainability in developed countries because the number of urban people living in slums continue to grow

A

They need to strengthen and widen social safety nets, upgrade investment in social protection for an effective response to crises and their aftermath

950
Q

What are the challenges to create sustainability in developed countries because of the inefficient use of public services (water, electricity)

A

They need to change overproduction and overconsumption styles, improve waste and recycling management

951
Q

What are the opportunities to create sustainability in developed countries because of the inefficient use of public services (water, electricity)

A

They can invest in retrofitting in buildings of water and energy saving devices, upgrading public furniture

952
Q

What are the challenges to create sustainability in developed countries because of the ageing population

A

They have fiscal pressure to reduce health costs and need to improve productivity

953
Q

What are the opportunities to create sustainability in developed countries because of the ageing population

A

They can invest in retraining older people and extend the working age

954
Q

What are the challenges to create sustainability in developed countries because of the inequality and financial fragility

A

They need to reduce unemployment, boost economic growth, strengthen international cooperation

955
Q

What are the opportunities to create sustainability in developed countries because of the ageing population

A

They can invest in green infrastructure, policy coherence and coordination

956
Q

What are the challenges to create sustainability in developed countries because of the food insecurity

A

They need to Reduce food waste

957
Q

What are the opportunities to create sustainability in developed countries because of food insecurity

A

They can invest in storage infrastructure, reducing food subsidies, policy coordination

958
Q

What are the challenges to create sustainability in developed countries because of energy access

A

They need to reduce overproduction and overconsumption to sustainable levels

959
Q

What are the opportunities to create sustainability in developed countries because of energy access

A

They can invest and use incentives to produce and use renewable energy sources; decentralisation of energy production

960
Q

What are the challenges to create sustainability in developed countries because of climate change

A

They need to upgrade disaster risk prevention systems and reduce carbon emissions to sustainable levels

961
Q

What are the opportunities to create sustainability in developed countries because of climate change

A

They can invest in mitigation, industrial green transformation, retrofitting of buildings and policy coordination

962
Q

Why is there no ‘one scheme fits all’ approach towards achieving sustainability

A

Because the challenges faced by individual cities are diverse and depend on their population size, economic status, technological capacities and development priorities

963
Q

What are 9 key strategies to achieve sustainability

A

Investment in infrastructure like roads, water, sewers and electricity and services such as schools and health care.
Green investment in low income countries.
Investment in the production and use of renewable energy sources as well as the renovation of infrastructure, retrofitting of buildings and improved electricity and water efficiency.
Investment in the reduction of waste production and waste collection.
Provision of more ‘green’ areas.
Investment in sustainable and affordable housing.
Adoption of a local currency.
Active participation of different city stakeholders.
Disaster risk reduction.

964
Q

What has it been argued that greater investment in rural areas is important to do

A

Reduce the rural-urban migration that has put increasing pressure in cities in the last few decades

965
Q

How does green investment in low income countries help sustainability

A

They can help poorer cities ‘leapfrog’ from high-carbon energy use to a zero-carbon development path which could provide employment for the ‘youth bulge’ within these cities

966
Q

What was the name and content of the report by the British environmental charity Groundwork in 2012

A

‘grey places need green spaces’ in which they outlined the benefits of green spaces in cities.
This includes greater public health, better personal well-being and economic prospects and reduced violence and aggression

967
Q

Examples of stakeholders

A

Government.
Residents.
Local businesses in urban planning.

968
Q

Examples of disaster risk reduction

A

Schemes such as tidal barrages and early warning systems can help mitigate the impacts of floods, storm surges and other hazards to which some cities are vulnerable

969
Q

What do local currencies tend to do

A

Serve the need of local people because they keep money within the local economy

970
Q

Example of a local currency

A

The Bristol Pound

971
Q

What has Research by the New Economics Foundation round

A

That for every local currency pound spent in a local business, £1.73 is generated through the multiplier effect. In contrast for every pound spent in a chain store, only 35p is re-spent in the local economy

972
Q

What can local currency encourage a sense of

A

Community

973
Q

What can adoption of local currency include

A

A mechanism to generate donations for local schools and social services