基于GIS的南通市公路交通网络可达性研究

发布时间：2018-05-18 19:46

本文选题：可达性 + 公路交通网络　；参考：《信阳师范学院学报(自然科学版)》2014年01期

【摘要】：利用GIS网络分析扩展模块,并基于加权平均出行时间指标,对南通市公路交通网络的区内、区外可达性进行分析.结果表明:南通市内部可达性呈现中部沿江地区高、两端地区低的不规则圈层分布,可达性中心出现在市区并向通州区方向延伸,与中心城市的空间发展方向一致,节点的可达性与其经济区位密切相关,区内可达性受高速干线公路影响甚微;在区外可达性方面,苏通大桥与崇启大桥建成通车后,南通市内各节点与上海、苏州及无锡三市的加权平均出行时间缩短到2 h以内,尤其是启东市,区外可达性减少了0.79 h,区外可达性空间格局呈现出以市区、通州区及海门市为中心的南部地区较高,北部地区较低的分布特点.
[Abstract]:Based on the weighted average travel time index, the accessibility of Nantong highway traffic network is analyzed by using the extended module of GIS network analysis. The results show that the interior accessibility of Nantong City is high along the Yangtze River in the central part of the city, and the distribution of irregular layers is low at both ends. The reachability center appears in the urban area and extends to Tongzhou District, which is consistent with the spatial development direction of the central city. The reachability of the node is closely related to its economic location, and the regional accessibility is little affected by the highway. In terms of accessibility outside the region, after the completion of the Sutong Bridge and the Chongqi Bridge, each node in Nantong City and Shanghai, The weighted average travel time of Suzhou and Wuxi was shortened to less than 2 hours, especially in Qidong City, where the accessibility outside the area decreased by 0.79 hours, and the spatial pattern of accessibility outside the area was higher in the southern areas, such as urban area, Tongzhou district and Haimen city. The lower distribution characteristics of the northern region.
【作者单位】：中国矿业大学力学与建筑工程学院;北京交通大学土木建筑工程学院;
【基金】：国家自然科学基金项目(41171441)
【分类号】：U491.13

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