Cities are always changing. This quiz explores how urban areas create jobs and services, but also face challenges like inequality, congestion, and environmental problems.
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You can find more about this topic by visiting BBC Bitesize - Urban issues and challenges
Shanty towns are features of many cities in LEDCs and NICs because rural to urban migration is very high
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Rural to urban migration is much less in MEDCs
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Poverty, political disturbance and armed conflict are all push factors, a better standard of living is a pull factor. Other factors include climate change making subsistence farming even less productive or even a natural disaster
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New houses or renovated older houses can be built to be more energy efficient. Biodiesel can reduce CO2 emissions by more than 10%. Congestion charging encourages people to use public transport instead of driving into the city. Building new shopping centres on the edge of an urban area can increase car use
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Traffic congestion increases pollution, increases the carbon footprint of a city, costs extra money for motorists stuck in traffic and wastes a lot of time. Many cities in both MEDCs and LEDCs are introducing traffic management schemes
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These factors make housing development an expensive business and migrants arriving in the city may not be able to afford somewhere to live
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Other issues that all megacities have in common are food and energy supplies and traffic congestion
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Bus lanes can also be used by taxis and cyclists which encourages people to leave their cars at home and travel into the city centre using other means of transport
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Improved healthcare has reduced infant mortality and extended life expectancy
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Since 1950, the urban population in LEDCs has increased by a factor of about 5. Taken over the same time period, the urban population in MEDCs has only increased by a factor of two i.e. it has doubled
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