多中心大都市城市蔓延特征与对策

The Characteristic And Countermeasures Research Of Polycentric Metropolitan Urban Spreading

基于我国城市快速扩张及空间无序蔓延的事实,研究结合典型的多中心大都市—杭州市,对我国多中心大都市地区城市蔓延的表现、特征、成因及控制路径进行分析。杭州市城市蔓延的成因主要有市区经济不断发展与产业结构的连续调整、缺少引导的惯性发展与控制失效、行政分割与多层级控制的重叠混乱。据此,研究有针对性地提出控制我国多中心大都市城市蔓延的有效路径:打破城市填充式建设的现状、构建弹性的城市空间结构和构筑内部紧凑的多中心生长模式,并划定"刚弹并举"的外部控制性城市增长边界。

Based on the facts that rapid expansion of urban construction and disordered spread of city space, this paper studies the performance, characteristics, causes and control path of polycentric metropolitan city in China. This paper selects typical multi-center city of Hangzhou, preliminary judgethe population increasing beyond a steady growth trend and the rapid construction beyond the area of overal urban planning, and then analyses its basic characteristics, including main construction land ifling type and much higher than the growth of the population growth, construction land, the inconsistent and mutual promoting efect of permanent population and GDP growth, the dififculty of space structure adjustment.The analysis of main causes ofspreadingis lack of development and the failure of inertia, administrative division and overlapping multi-level control of chaos. Finaly, puts forward several efifcient paths: breaking the current situation of the construction of urban inifl, constructingelastic spatial structure of urban to long-term control of construction, building internal compact multicenter growth model, and deifning‘Rigid and elastic’urban growth boundary to control the outside of city.