London as a world city Flashcards
What is urban sprawl?
Urban sprawl is the spreading of urban development on undeveloped land near a city.
What is a brown filed site?
A brown field site is an are of previously developed land that have potential for redevelopment.
Where would you usually find brown field sites?
In the city
State disadvantages of building on a brownfield site
Air pollution
Buying land is expensive
Less space for gardens
State advantages of building on a brown field site.
.Cheaper as don’t have to put road access and drainage in ( its already there)
.Stop city expansion as already in the city
.Easy to get planning permission rather than trying to get planning permission on an area that has not been built on before.
What is a green field site/
A green field site is an agricultural land around the edge of the city that has never been built on
Where would you usually find green field sites?
Around the edge of the city
State advantages of building on a green field site.
.Greenfield sites may be a more pleasant environment and have less congestion
.There is no clean-up costs associated with Greenfield sites.
.Land can be cheaper to purchase in rural areas.
State disadvantages of building on a green field site.
.Harder to get planning permission as it is an area that has never been built on.
.Due to poorer public transport links, more people need to use cars.
.Urban sprawl increases.
positive effects of urban sprawl.
Land in low density areas tend to be cheaper.
Business owners can move their companies into less competitive areas, with cheap rent and more space for expansion.
Negative effects of urban sprawl
.It encourages the degradation of agriculture and increases the pollution and congestion in rural-urban.
.Traffic congestion
.Government is forced to use good agricultural land to accommodate immigrants.
What is a world city?
A world city is an important multinational city, having large influence over the whole world.
What is a megacity?
A megacity has a population of over 10 million, but not all the characteristics of a world city
How might urban sprawl create environmental impacts?
.Increased pollution: More cars and industrial activities contribute to air and water pollution.
.Expanding areas generate more waste, which can strain existing waste management issues and lead to improper disposal.
.Great demands for resources like water and energy increases strain on natural systems.
