Urban Environments Flashcards
urbanisation
the increasing proportion of people living in urban areas
trends in urbanisation between LICs and HICs
-emerging and developed countries have highest levels of urbanisation
-lowest levels of urbanisation in Africa and SE Asia
-urban population increasing proportionally faster than world’s population
when did the world’s urban population surpass 50% of th world’s population
2008
expected urban population in 2050 and 2100
66%% in 2050
75% in 2100
suburbanisation
-urban settlements grow towards the suburbs
causes of suburbanisation
-better transport links between suburbs and CBD
-CBD push factors(congestion, overcrowding, pollution)
-suburban pull factors(less pollution, greener, more space)
dormitory settlement
areas on the rural urban fringe where residents mainly sleep and then commute to the CBD for work(very quiet during the day)
counter urbanisation
-people leave the RUF and move out to rural areas.
-encourages decentralisation of activities away from the CBD
urban regeneration
-central urban areas that were decentralised and went into decline and are being redeveloped
-locals that remained there become prices out due to rising house prices there
factors affecting the rate of urbanisation
-rate of population growth
-high rates of rural-urban migration
-high rates of natural increase
-rate of economic development
-multiplier effect
rural dilution
when urban areas expand into more rural areas
millionaire city
city with more than 1 million people
megacity
city with more than 10 million people
global/world city
city with global significance e.g. culturally or financially
Example: Tokyo
factors affecing the emergence of megacities
-urban agglomerations due to people and economic activites concentrating at favourable locations
problems with rapid urbanisation
-Housing, high demand: slums form as housing becomes too expensive in urban areas
-Access to water and electricity: streams can be polluted with sewerage: some in LICs rely on fuelwood
-Congestion and Transport: overcrowded, air pollution
-Employment: many unable to find work once migrated to cities, end up in informal sectors
-high crime rates