Contemporary urban enviroments Flashcards
Ubranisation
Ubranisation = the increase in the proportion of a countrys population that live in urban areas
Natural population growth
Natural popultion growth occurs where birth rate is greater than death rate
-Urban areas tend to have a relativley young age profiles usually young adults (15-40 years) migrating and are lured by the prospect of higher paid jobs, better educational opportunities and greater cultural and social behaviours
- MIgrants are in their fertile years so rates of natural increase are higher in cities than rural areas
E.G. Nappyville in london due to high proportion of young families living there
What is the total world population expected to grow by 2045?
- A surpus of 6 billion with much of the growth from LICS
- Many areas projected to be urban in 2040 have not yet been built e.g.india 70% of it is not built
How has urban populations changed since 1945?
-Growth from 756m in 1950 to 3.9b in 2014
- Most urbanised regions include northen america (82% living in urban regions in 2014, latin america and caribean 80%and europe 73%
- Africa and Asias are mostly rural, 40% and 48% living in urban areas
- 3 countries are expected to account for 37% of the projected growth of the worlds urban population between 2014 and 2050
- India expected to add 104km dweller, china 292m and nigeria 212m
What are the causes and consquences of urbanisation?
Causes:
- Natural causes of population growth (births) Rural- urban migration, better paid jobs, more job opportunities, higher standards of living etc
Consquences:
- Shortage of affordable housing in higher income cities, rising demand in house prices has led to a dramatic increase in house prices and rental costs/ lack of services and waste disposal, transport issues, unemployment and underemployment
Urban growth
Urban growth = is an increase in the number of urban dwellers
Causes of urban growth = Natural population growth, rural to urban migration
Urban sprawl
Urban sprawl = The spread of an urban area into the sorrounding countryside
What is sub-urbanisation?
Sub-urbanisation = the movement of people from living in the inner part of the city to the outer edge
- Has be faciliated in the late twentieith century by the developmet of transport networks and increase in car ownership, allowing people to commute to work
Ribbon developments
Ribbion developments occured inn 1930s, fewer planning controls and urban growth took place alongside main roads
By 1940s the growth of ribbion developments became a concern and green belts were created
Green belts
Green belts = are areas of open space and low density land use around towns where further development was slightly controlled
Green belt boundaries
Green belt boundaries = can be changed by the council
Brownfield land
Brownfield land = previoulsy developed land
Doughnut effect/Dead Heart Symdrone
DHS= Refers to the development where city centre becomes more hollow or empty as businesses and people move into the outskirts of the city
Causes and consquences of DHS
Causes:
- The rise of motocar, cheapness of land at edge of city, rise in out of town shopping centres, lack of investment in cbd/inner city, dereliction of building, decline of shopping enviroment, overcrowding, poor air quality, crime, poor parking avalability
Consquences
- Urban decline; the deteriation of the inner city caused by lack of service and maintenance
- Urban deprivation; a standard of liing below that of the majority in a particular society
- Urban change; involves any change within the urban enviroment associated with growth or decline of an urban area
Counter urbanisation
Counter urbanisation =movement from large urban areas into smaller urban areas or rural areas
E.g. leapfrogging the rural-urban fringe
Results in increased commuting and ict usage
Push and pull factors of counter urbanisation
Push factors:
- Air pollution, crime rates, overcrowding, traffic congestion, old housing, lack of gardens, lack of open space and parks
Pull factors:
- Cleaner enviroment (less noise and air pollution) safer enviroment (lower crime rates) pleasent scenary and countryside, safer enviroment for children and more green space
Positive and negative impacts of counter-urbanisation
Positive impacts:
- Brings in more business for local workers e.g. plumbers
- Local farmers benefit as newcomers support local
- More exclusive luxury housing
Negative impacts:
- Increased value in houses, becomes major issue for exisiting residents
- Conflict between newcomers and exisiting residents
- Decline in traditional farming
Urban resurgence
Urban resurgence (re-urbanisation) = refers to the regeneration both economical and structual of an irban area which has suffered a period of decline
This is often intiated by re-development schemes but is also due to wider social, economic and demographic processess