长江三角洲高速公路网通达性与城镇空间结构发展

Expressway Network Accessibility Analysis and Structured Change of Urban System in Yangtze Delta Megalopolis

本文以通达性为度量,探索长江三角洲地区高速公路网络建设与区域城镇体系发展之间的互动关系。研究通过网络分析概括高速公路系统发展状态,以距离通达性度量节点城市间的沟通程度,以潜能通达性分析网络建设对区域经济社会发展影响,并通过多时间断面的比较分析,揭示2000-2015期间通达性空间演变历程。并且,在技术分析的基础上,本文比较分析了长江三角洲快速交通通达性空间发展与全球化背景下长三角巨型城市区城镇体系空间结构变化,讨论了区域发展与高速公路网络建设之间的几个基本特征和作用关系。

This research is to explore a co-relationship between regional development and transport network construction in Yangtze River Delta,by measuring the expressway accessibility development from 2000 to 2015. Network indicators were used to summarize the expressway constructing process. Accessibility measured by traveling distance was used to evaluate the improvement of the connectivity between node cities. Economically and demographically weighted accessibility shows the attractive and emissive effects through the network in regional development. Furthermore,a comparison was conducted between the regional network accessibility improvement and regional urban system change under globalization. Some principal interactions between regional development and transport network were concluded and a forecast for the next 10 years was given.