基于GIS的四川省公路交通网分形研究  

Analysis of Fractal Spatial Characteristics of Highway Traffic Network in Sichuan Province based on GIS

作　　者：兰代萍[1] 

机构地区：[1]内江师范学院

出　　处：《公路》2018年第3期157-162,共6页Highway

基　　金：四川省教育厅重点项目,项目编号16ZA0312

摘　　要：运用GIS软件,同时基于分形理论,对四川省干线公路网络进行了定量分析。通过测算网络覆盖度和空间关联维数,对其网络的覆盖形态及空间相关性进行了分析。结果表明：四川省干线公路网络具有明显的分形特征,网络覆盖度为1.464 7,高于全国平均水平,但低于经济发达地区;网络直通度为0.922,交通网络的通达性较好;区域差异显著,部分地区交通基础设施贫乏。因此,应积极推动交通网络的建设,并利用通达性较好的交通网络带动区域经济的发展。Based on the fractal theory,the traffic network of trunk highway in Sichuan Province is quantitatively analyzed by using GIS software.By covering the network coverage and spatial correlation dimension,the coverage and spatial correlation of the network are analyzed.The results show that the traffic network of the trunk road in Sichuan Province has obvious fractal characteristics,the network coverage is 1.4647,which is higher than the national average level,but lower than the economically developed area.The network accessibility is 0.922,and the accessibility of the traffic network is better.Significantly,the transport infrastructure is scarce in some areas.Therefore,construction of the transportation network shall be actively promoted,which can promote regional economic development.

关 键 词：交通网络 覆盖度 关联维数 分形 

分 类 号：U491.13[交通运输工程—交通运输规划与管理]