基于GIS的铁路密度空间分异研究——以新疆铁路交通网络为例

Research on spatial differentiation of railway density based on GIS——a case study of Xinjiang railway traffic network

城市对外交通中,铁路是发展较早的交通运输方式。本文以新疆的铁路交通网络为依据,以道路密度为指标,利用Arc GIS的叠加分析和空间分析功能,研究新疆铁路交通网络的空间分异,并分析新疆各区域人口、生产总值差异与铁路密度差异之间的相互关系。结果表明:(1)新疆铁路密度差异显著,大体呈现"南北低中部高"的趋势;(2)新疆各地区铁路密度与人口分布、生产总值高度正相关。

Railroad is an earlier developed transportation mode in urban external traffic. In this paper, based on the railway traffic network in Xinjiang, takes the road density as the index, and uses the overlay analysis and spatial analysis function of Arc GIS, to study the spatial distribution of Xinjiang railway traffic network,and analyze the relationship between the regional population, gross product and the difference of railway density in Xinjiang. The results show that（1） the railway density difference is significant in Xinjiang, generally presents the ＂North South low middle high＂trend;（2） The railway density is positively correlated with the distribution of population and gross product in Xinjiang.