基于GIS的福建省路网可达性及其空间特征  

Accessibility and spatial characteristics of road network in Fujian Province based on GIS

作　　者：叶丽敏[1] 史本杰 邱美华[1] 林雨平[1] 张春丽 Ye Limin;Shi Benjie;Qiu Meihua;Lin Yuping;Zhang Chunli(Jinshan College of Fujian Agriculture&Forestry University,Fuzhou 350002,Fujian,China;Fuzhou Polytechnic,Fuzhou 350108,Fujian,China)

机构地区：[1]福建农林大学金山学院,福建福州350002 [2]福州职业技术学院,福建福州350108

出　　处：《江苏师范大学学报（自然科学版）》2021年第4期60-63,共4页Journal of Jiangsu Normal University：Natural Science Edition

基　　金：福建省中青年教师教育科研项目(JT180848,JT180851);福建农林大学金山学院应用型学科建设项目(yx190401)。

摘　　要：基于GIS,从县域尺度分析2019年福建省路网可达性及其空间特征.通过核密度估计法分析福建省的路网格局;利用加权平均旅行时间分析福建省路网可达性空间格局.结果表明:福建省道路交通网络核密度较高的区域集中在东南沿海地区,呈多中心分布形式;福建省道路交通网络可达性存在空间分异特征,从东南沿海地区到西北山区可达性逐渐减弱,圈层空间格局突出.交通网络可达性与经济的发展密不可分,福建省西北部地区应注重交通与经济的协调联动发展,以改善其交通网络可达性水平.The accessibility and spatial characteristics at county level of road network of Fujian Province in 2019 are studied based on GIS.The road network pattern is analyzed by kernel density estimation method,and the spatial pattern of road network accessibility of Fujian Province is analyzed by weighted average travel time.The results show that the regions with the higher road nuclear density in Fujian Province are concentrated in the southeast coastal area,with a multi center distribution.The accessibility of road network of Fujian Province is characterized by spatial differentiation,which is gradually weakened from southeast coastal area to northwest mountain area,and the spatial pattern of circular layer is prominent.Transportation network accessibility is inseparable from economic development,therefore,the northwest leadership of Fujian Province should pay attention to the coordinated development of economy and transportation in order to improve its transportation network accessibility level.

关 键 词：道路网络 可达性 核密度估计法 加权平均旅行时间 福建省 GIS 

分 类 号：P208[天文地球—地图制图学与地理信息工程] U491.13[天文地球—测绘科学与技术]