基于GIS的赣州市城区道路可达性研究

Research on Road Accessibility of Ganzhou City Based on GIS

以赣州市中心城区为研究区域,收集处理研究区域内的道路交通网络数据,采用GIS空间分析和相关统计算法,计算出道路密度、道路服务指数2个可达性指标,通过指标模型结果对赣州市中心城区交通网络的可达性现状进行分析。研究结果表明,赣州市城区道路交通网络可达性与城市建成区之间的可达性呈现相对不均衡,中心城区之间道路密度仍具有提高空间,章贡区的可达性程度最高,与南康区具有连接成片的趋势,赣县区的可达性最低。研究结果对赣州市城区道路网络的优化和未来建设有一定指导作用。

Taking Ganzhou central urban area as the research area,this paper collects and processes road traffic network data in the research area,uses GIS spatial analysis and related statistical algorithms to calculate two accessibility indicators,road density and road service index,and compares Ganzhou with the results of the indicator model.The current status of the accessibility of the downtown transportation network is analyzed.The research results show that the accessibility of the road traffic network in Ganzhou city presents a relatively unbalanced accessibility between urban built-up areas,and there is still room for improvement in road density between central urban areas.Zhanggong district has the highest degree of accessibility,which is comparable to that in the south.Nankang district has a tendency to connect into a piece of land,and Ganxian district has the lowest accessibility.The research results have a certain guiding role for the optimization and future construction of the road network in Ganzhou city.