快速交通对区域中心城市日常可达性影响——以长江三角洲地区为例

发布时间：2018-01-17 12:38

本文关键词：快速交通对区域中心城市日常可达性影响——以长江三角洲地区为例　出处：《长江流域资源与环境》2015年02期 　论文类型：期刊论文

【摘要】：近年来高速公路、高速铁路等快速交通不断发展,城市区域可达性得到大幅提高。基于栅格数据的成本加权距离法,利用平均旅行时间、等时圈以及日常可达性等区域可达性指标,比较分析有无高速公路和有无高速铁路情况下长三角地区中心城市可达性空间格局变化,探索两种快速交通方式对中心城市可达性的影响差异。结果显示:由于高速公路网发育程度较好,对城市区域可达性的影响较为均衡,而高速公路桥能显著缩短两岸旅行时间;高速铁路运行速度更快,但主要沿大城市带呈线状分布,因此对沿线可达性改善明显,尤其是对铁路端点城市;高速铁路较高速公路对城市之间日常可达时间优化效果显著;高速公路和高速铁路对于可达性影响各异,需衔接配合方能大幅提高城市日常可达性,促进区域经济社会公平快速发展。
[Abstract]:In recent years, with the rapid development of expressway and high-speed railway, the accessibility of urban area has been greatly improved. The cost weighted distance method based on raster data makes use of the average travel time. The regional accessibility indexes such as isochronous circle and daily accessibility are compared and analyzed, and the spatial pattern of accessibility in the central cities of Yangtze River Delta region is compared and analyzed under the condition of whether there is a highway or not and whether there is a high-speed railway. This paper explores the difference between the two modes of rapid traffic on the accessibility of central cities. The results show that the impact on the accessibility of urban areas is more balanced due to the good development of the expressway network. The highway bridge can significantly shorten the travel time between the two sides of the strait; The speed of high-speed railway is faster, but it is mainly distributed linearly along the big city zone, so the reachability along the railway line is improved obviously, especially for the railway terminal city. Compared with the expressway, the high-speed railway has a remarkable effect on the optimization of the daily reachable time between the cities. The influence of expressway and high-speed railway on accessibility is different, so the daily accessibility of city can be greatly improved and the regional economy and society can be developed fairly and rapidly.
【作者单位】：南京师范大学地理科学学院;
【基金】：国家自然科学基金项目(41071114)
【分类号】：F572.88
【正文快照】： 交通作为联系地理空间社会经济活动的纽带,决定着空间相互作用的深度与广度[1]。可达性[2]作为交通系统的主要产品,是指利用特定的交通系统从某一区位到达指定活动区位的便捷程度。随着现代社会经济的发展,区域间的经济交往活动越来越频繁,交通可达性已成为影响、制约区域人员

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