This paper focuses on the economic development and urban morphology as well as its impact on the transportation system during the urban expansion of Shanghai in the last more than 20 years(1986-2008).Based on data fro...This paper focuses on the economic development and urban morphology as well as its impact on the transportation system during the urban expansion of Shanghai in the last more than 20 years(1986-2008).Based on data from 3 comprehensive transport surveys of Shanghai since 1986,the changes in residential trip demand,vehicle use,and the spatial distribution of trips were studied to understand the demands on the transportation system.The factors contributing to those changes in transportation demand were discussed,by which the conclusions were arrived:1) economic development promotes population growth and stimulates residential trip demand greatly;2) unsynchronized migration of population and job from central district to periphery district of Shanghai make trips and congestion diffuse in the same way;and 3) urban sprawl from a city center encourages the single-occupant vehicle mode,which imposes greater pressure on the roadway system.It is concluded that urban development should coordinate with the transportation system planning and expansion.展开更多
Current inner-city-1 depopulation coupled with significant peripheral expansions disrupting nature, are the rule in many of the world＇s large cities such as Montreal. Expansion needs to be balanced from the inner-cit...Current inner-city-1 depopulation coupled with significant peripheral expansions disrupting nature, are the rule in many of the world＇s large cities such as Montreal. Expansion needs to be balanced from the inner-city attraction perspective. To deal with that objective and following an inductive process in the scientific method, two field surveys were implemented in one of Montreal＇s inner-city most popular neighbourhoods（Sainte-Marie） for measuring its current attraction power. Results expose that current local residential housing/services improvement in terms of their medium to high needs/impedances-2 linear correlations to achieve it discourage people to continue living in Sainte-Marie on a ＂free will＂ basis. This report concludes that limiting city expansion at least through this inner-city neighbourhood＇s attraction level is still very much a myth.展开更多
基金Under the auspices of National Natural Science Foundation of China (No 70803034)
文摘This paper focuses on the economic development and urban morphology as well as its impact on the transportation system during the urban expansion of Shanghai in the last more than 20 years(1986-2008).Based on data from 3 comprehensive transport surveys of Shanghai since 1986,the changes in residential trip demand,vehicle use,and the spatial distribution of trips were studied to understand the demands on the transportation system.The factors contributing to those changes in transportation demand were discussed,by which the conclusions were arrived:1) economic development promotes population growth and stimulates residential trip demand greatly;2) unsynchronized migration of population and job from central district to periphery district of Shanghai make trips and congestion diffuse in the same way;and 3) urban sprawl from a city center encourages the single-occupant vehicle mode,which imposes greater pressure on the roadway system.It is concluded that urban development should coordinate with the transportation system planning and expansion.
文摘Current inner-city-1 depopulation coupled with significant peripheral expansions disrupting nature, are the rule in many of the world＇s large cities such as Montreal. Expansion needs to be balanced from the inner-city attraction perspective. To deal with that objective and following an inductive process in the scientific method, two field surveys were implemented in one of Montreal＇s inner-city most popular neighbourhoods（Sainte-Marie） for measuring its current attraction power. Results expose that current local residential housing/services improvement in terms of their medium to high needs/impedances-2 linear correlations to achieve it discourage people to continue living in Sainte-Marie on a ＂free will＂ basis. This report concludes that limiting city expansion at least through this inner-city neighbourhood＇s attraction level is still very much a myth.
