京沪高铁影响下的区域公路可达性空间分异特征研究

发布时间：2019-06-15 16:39

【摘要】：在GIS技术和空间数据库支撑下,应用最短路径算法与网络分析技术及可达性指数,测度高铁通车前后案例区公路可达性空间格局与变化,采用变异系数与斯皮尔曼等级系数测算高铁的公平性影响.结果显示:①高铁从整体上提高区域公路可达性水平,极大地缩短中心城市间的时间距离,但各地可达性收益不等,可达性均衡程度降低.②高铁塑造高可达性"走廊"与"岛".加权旅行时间高变率地区呈现出"哑铃状",表明高铁沿线站点地区与南北端城市获益最多.经济潜力与日常可达性高值区向高铁沿线城市偏移,反映站点城市接收中心城市辐射能力提高;高铁沿线城市日常可达人口规模急剧膨胀,扩大沿线城市服务业的市场范围.③高铁站点依靠其在快速交通网络节点的枢纽作用,将成为区域重要的快速交通中转站.
[Abstract]:Supported by GIS technology and spatial database, the shortest path algorithm, network analysis technology and accessibility index are used to measure the spatial pattern and change of highway accessibility before and after the opening of high-speed rail, and the coefficient of variation and Spelman grade coefficient are used to measure the fairness influence of high-speed rail. The results show that: (1) the high speed rail improves the accessibility level of the regional highway as a whole, greatly shortens the time distance between the central cities, but the reachability income varies from place to place, and the degree of accessibility equilibrium decreases. 2 the high speed rail creates the high accessibility "corridor" and "island". The area with high rate of weighted travel time shows "dumbbell", which indicates that the station area along the high-speed rail line and the cities at the north and south end benefit the most. The high value area of economic potential and daily accessibility shifts to the cities along the high-speed rail, reflecting the improvement of the radiation capacity of the cities along the high-speed rail, and the rapid expansion of the daily accessible population of the cities along the high-speed rail, expanding the market scope of the urban service industry along the line. (3) depending on its hub role in the rapid transit network nodes, the high-speed rail stations will become an important regional rapid transit station.
【作者单位】：中国科学院地理科学与资源研究所首都师范大学资源环境与旅游学院
【基金】：国家自然科学基金重点基金项目(41230632);国家自然科学基金青年项目(41301108);国家自然科学基金青年项目(41001105) 中国博士后科学基金面上资助项目(2011M500374)
【分类号】：U412.1;P942

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