北京城区交通时间可达性测度及其空间特征分析（英文）

发布时间：2017-06-03 06:10

  本文关键词：北京城区交通时间可达性测度及其空间特征分析（英文），由笔耕文化传播整理发布。

【摘要】：Construction of road infrastructure is fundamental to city operation and development, as well as an important pathway and focus in physical urban-rural integration. The long-term implementation of a system of ring roads plus radiating roads in Beijing has strongly impacted urban infrastructure construction and space-time accessibility. Particularly, recent rapid growth of private car ownership in Beijing has imposed greater loads on its road system, seriously hampering urban commuting efficiency and negatively impacting quality of life. To address such challenges and enhance the rapid development of transport infrastructure, Beijing has accelerated rail transit construction since 2008 in an effort to improve commuting capacity. This paper aims to measure time accessibility and its spatial characteristics in urban areas of Beijing by applying a comprehensive method that combines vector and raster attribute data generated from road network and subway transport infrastructure. By using a dual index of accessibility and road density, the study further reveals the features of and differences in spatial accessibility and the construction of road systems in urban areas of the northern and southern parts of Beijing. The findings of this study can provide a scientific basis for future urban planning and road system construction both in general and with respect to Beijing, given its aspirations to become a world city.
【作者单位】： Institute
【关键词】： accessibility road density spatial characteristics Beijing
【基金】：National Natural Science Foundation of China,No.41601164,No.41601427 Key Program of National Natural Science Foundation of China,No.71433008 Cultivate Project of Institute of Geographic Sciences and Natural Resources Research,CAS,No.TSYJS03
【分类号】：U491
【正文快照】： 1 Introduction Transportation accessibility describes the degree of convenience of travel from one location to another,and involves measuring the closeness of markets,the comprehensiveness of an economy,and access to places of employment(Li and Lu,2001)

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本文编号：417425