Evolution Characteristics and Optimization Strategies of Urban Spatial Structure in Megacities from the Perspective of Population-Industry Matching:A Case Study of Shanghai
Polycentricity is an essential goal in optimizing the spatial structure of megacities,which is generally accomplished by active population and industrial layout optimization policies.Taking Shanghai as an example,this study explores changes in the spatial distribution of permanent population and employment in Shanghai between 2010 and 2020,under the guidance of population and industrial layout optimization policies.Population and economic census data are used to quantitatively identify the population-industry matching characteristics in two dimensions:quantity matching and type matching.Furthermore,the impact of population-industry matching attributes on optimizing the spatial structure is shown from the perspective of centripetal commuting changes.The analysis concludes that while Shanghai's population and industrial layout optimization policies have reached the target to some extent,the population-industry quantity mismatch and type mismatch can't be neglected.This has led to a more monocentric polarization of the urban spatial structure under the perspective of factor flow,contrary to the goal of polycentric development.The study suggests that the synergy between population and industrial layout must be considered when designing spatial optimization policies in megacities.Population-industry matching can help realize the polycentric spatial structure.
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