摘要
以全国286个地级城市为研究对象,基于ArcGIS网络分析模型,采用加权平均旅行时间和潜力值2个可达性指标来研究全国交通可达性空间格局特征.结果表明:从时间可达性看,2008年高铁的开通,增强了城市可达性的整体水平,可达性值相对变化减少了62.67%,形成以站点及沿线城市为“岛”和“廊道”的高交通可达性空间新格局;从潜力值可达性分析,潜力可达性值平均提高了191.89,带动了区域间的人口流动,密切了城市间联系,东部和中部地区潜力值可达性水平增长幅度大.
Taking the 286 prefecture-level cities as the object of study,based on the ArcGIS network analysis model,the weighted average travel time and potential value of two accessibility indicators to study the national transport accessibility spatial pattern characteristics.The results show that:In terms of time accessibility,the opening of high-speed railway in 2008 enhanced the overall level of urban accessibility,and the relative change of accessibility value was reduced by 62.67%,forming a new high traffic accessibility pattern with sites and cities along the route as“island”and“corridor”.From the analysis of potential accessibility,the potential accessibility value increased by 191.89 on average,which led to the inter-regional population movement,the close inter-city linkages,and the large increase of the potential accessibility level in the eastern and central regions.
作者
高家骥
国安东
GAO Jiaji;GUO Andong(School of Marine Law and Humanities,Dalian Ocean University,Dalian 116023,China;School of Design,Central Academy of Fine Arts,Beijing 100105,China;Liaoning Key Laboratory of Physical Geography and Geomatics,Liaoning Normal University,Dalian 116029,China)
出处
《辽宁师范大学学报（自然科学版）》
CAS
2019年第4期525-529,共5页
Journal of Liaoning Normal University:Natural Science Edition
基金
国家自然科学基金资助项目（41671158
41771178）
辽宁省教育科学“十三五”规划课题（JG18DB063）
关键词
交通网络
可达性
空间格局
中国
transportation network
accessibility
spatial pattern
China
