1 Flashcards

1
Q
A
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2
Q

what is urbanisation

A

An increase in the proportion of people living in towns and cities

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3
Q

Where is the fastest growth of urbanisation taking place (two continents)

A

Asia and Africa

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4
Q

What three coutnires are expected to account for 37% of the world’s urban population?

A

China (+292 mil), India (404mil), Nigeria (212 mil)

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5
Q

why have some cities experienced population decline, examples

A

economic contraction (Detroit)
low fertiliity rates (Japan)
emmigration (poland)
Natural disatsers (New orleans)

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6
Q

Why are urban areas important

A
  • strong leaderships and governments
    -centre of economic activity
    -infastructure and transport
    -better services (housing schools etc)
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7
Q

What is Planetary Urbanisation?

A

Idea that Urbansiation can happen anywhere in the world as it is a certain mode of production. More about lifestyle and culture.

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8
Q

What is urbanism

A

Culture and way of being in an urban enviroment

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9
Q

What is Urban Growth

A

The physical expansion of cities , economic and demographic

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10
Q

What are the casues of urban growth

A

rural to urban migration
Natural increase
Death rate decreases

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11
Q

What are the consequences of Urbanisation
(6)

A

-urban sprawl
-shortage of housing in LIC’s
-Transport issues
-employment and unemployemnt
-shortage of affordable housing in HIC’s
-Lack of urban services and waste disposal

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12
Q

How mamy mega cities were there in 1990 and then 2020.
Ho many are predicted for 2030

A

1990=10
2020=30
2030=43

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13
Q

how many people live in an area for it to be a meta city?

A

more than 20 mil

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14
Q

What is suburbanisation?

A

The moevement of people living in the inner parts of a city to the outer edge

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15
Q

Wherre did most growth take place in regrads to suburbansistaion and what is this called?

A

Along main roads- Ribbon development

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16
Q

What is a green belt?

A

Areas of open space and low density land-use around towns

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17
Q

timeline and reasons for suburbanisation
1930-70

A

1930- ribbon development
1940- Green belt areas
1950- better palnned expansion
1960- Council hosuing
1970- Home Ownership

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18
Q

consequences of Suburbansiation

A
  • pollution, noise and air
    -increased flood risk
    -decentrilisation of buisness and retail
    -Homogenisation
    -strain on services
    -loss of habitats
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19
Q

What is Counterurbansiation

A

the moevement of people from large urban areas into smaller urban or rural areas

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20
Q

What are the causes of Counterurbanisation

A
  • government encouragement, New towns act 1946
    -green belt policy
    -commuter towns
    -increase in working from home
    -improved transport
    -more open space= better quality of life
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21
Q

managing Counterurbansistation
St ives

A
  • expand primary schools, 240 more places
    -flood protection against the mebankment, cost 8.8 mil
  • a £116 million busyway has bene built linking st ives to huntingdon and Cambridgeshire reducing A14 traffic
    -200 new houses built
22
Q

Consequences of Counterurbanisation

A
  • loss of character/sense of place
    -tensisons between newcomers and lcoals
    -local services such as bus stops and post offices shut down
    -House prices are pushed up, outpricing young local residents
23
Q

What is urban resurgence

A

The regeneration, both economic and structural of an urban area that has suffered a period of decline

24
Q

What are the problems caused by urban resurgence

A
  • buisness not fitting in with the ‘trend’ are under threat from developers
    -the character of the place changing
    -people unable to afford the new high prices
25
What Cities have experienced the most urban resurgence and why
London, Manchester and Birmingham experienced de-industrillisation
26
What are the three types of air pollution
-photochemical smog -particulate air pollutin -temperature inversions
27
What is particulate air pollution and what is it caused by
Tiny bits of solids or liquids suspended in the air, can occur naturally but mainly occurs from the burning of fossil fuels
28
What are the temperature inversions and what does it vary with
pollution is trapped in a layer of warm air that is inbetween two layers of cold air. it varies with the concentration of pollutants and time of the year
29
What is Photochemical smog
The combination of sunlight and nitrogen oxide from cars which produces a brown photochemical smog
30
Why does LA suffer from extreme air pollution?
-High levels of cars -warm county- large amounts of sunlight -situated in a baisin (mountians)
31
When was the clean air act introduced and what did it entail
1956, created smoke free zones, put limits on the amount of airbone pollution
32
How can air pollution be reduced in london?
- cycle routes and lime bikes -public transport, tubes ans buses -park and ride services -congestion charges -ULEZ charges -Hybrid buses
33
What are the benefits of the conestion charge
-traffic reduced by 21% -Cyclists increased by 43% -CO2+NO2 emissions down by 12% -Bus passenger numbers have increased by 45%
34
What are the successes of the ULEZ charge
-95% of Vehicles are now ULEZ complient -99% reduction in the smount of of hours NO2 conc exceeded uk limit -Amount of NO2 detected at roadside decerased by 4.4%
35
What is zoning of industry
Industry is forced to locate downwind , thus forcing factories with chimmneys that emmit pollutuants to build these over the inversion layer
36
what are the categories of waste
biodegradeable recyclable inert electrical composite hazardous toxic biomedical
37
what is the waste stream
from domestic, commercial or industrial source to recovery, recycling or financial disposal
38
Where is most waste generated? How much more?
HICs and urban areas. 10 to 30 times more than LICs
39
what is MSW
Municipal solid waste
40
How does the waste source vary
plastic and metasl increase in HICs.LICs have a higher proportion of compostible waste-40-85% of total waste
41
What is the global waste trade
international trade of waste between countries. Trade is mainly from HICs to LICs causing toxic dumps
42
what ahs been put in place to stop global waste trade
International laws ( Basel convention) to prevent transboundary movement of hazardous waste
43
key facts about Manilla - urban waste
-10% of total waste is recycled -4/5s is transported to landfill sites -largets landfill site= 200 hectatres -more than 80,000 slum dwellers live around the dump
44
what are the approaches to waste management -waste triangle-
prevent reduce reuse recycle recover dispose
45
what are the positives of recycling
- reduce amount of rubbish in landfill sites -resources can be reused -creates jobs -protects biodiversity and ecosystems
46
what are the negatives of recycling
-expenisve - a nuisance for people -time consuming when sorting the rubbish -incorrect recycling can mess up the process -ease of access- less ppl in flast recycle
47
what is the london example to show how wealth affects waste management
Richmond 59% Newham less than 20% recycling rates
48
What are the reasons for ethinic segreagation in cities
- hostillity from the majority poplualtion -maintenance of cultures and traditions - places of worship or ethnic shops -living near the rest of the community -less succesful in secuirng morgage loans
49
How can issues about ethnic segregation be managed
-a policy of interculturalism -uk legislation on anti-racism laws, employment rights and other opportunities to combat discrimination
50
what is cultural diversity
The existence of a variety of cultural or ethnic groups within a society. Culture realates to nationality, race,age and traditons
51
Why is ther more culturla diversity in cities
- greater employment opportunities -first poiint of entry( airports) -established cuktural diversity -urban populatioion are more tolerant