基于时空消耗的交通拥堵空间治理研究

he fundamental governance of congestion is restraining traffic demand. The objective of the study is to find out spatial measurement reducing travel demand of certain size of city. The method: the formula of travel spatiotemporal consumption is set up based on spatiotemporal consumption theory and it calculates the travel spatiotemporal consumption of city models under different urban structures and function layouts. The result shows that the centralized distribution of business, industry and residence under the mixed transport creates minimum travel spatiotemporal consumption, travel spatiotemporal consumption of polycentric urban structure with well-distributed group function is significantly less than a mono-centric urban under same size and functional area of urban layout, but polycentric urban structure with imperfect group function does not reduce traffic travel demand. The case study of Beijing and Chongqing main area is then presented. The conclusion: a polycentric-structured city with well-distributed function layout groups and large capacity of public transport has the minimum travel spatiotemporal consumption.