基于 GIS 的徐州市主城区交通道路网络可达性研究

摘要

Taking Jiangsu Xuzhou main city as the breakthrough point,using the traffic road network data,with the help of ArcGIS 10. 2 network analysis function,selected the minimum time impedance,shortest path impedance,average travel range,accessibility coefficient,road network density,network connectivity six indexes as the evaluation system,made multi angle analysis on the accessibility of the regional road network,the results showed that:Xuzhou main city traffic road network had good accessibility,the right center projected to the southeast direction,but urban periphery road network had low density,poor accessibility,Gulou District had poor mobility,should be strengthen the road network construction in two areas and continue to improve the transportation infrastructure.%以江苏省徐州市主城区为切入点，利用该区交通道路网数据，借助 ArcGIS 10.2网络分析功能，选取最小时间阻抗、最短路程阻抗、平均出行范围、可达性系数、道路网密度、路网连通度6个指标作为评价体系，对该区域道路网的可达性进行多角度分析，结果表明：徐州市主城区交通道路网整体可达性良好，由中心向东南方向突出；但城区外围路网密度低，可达性差；鼓楼区机动性较差，应加强这两个地区的路网建设并不断完善交通基础设施。