基于路网数据的应急避难所可达性分析  

Accessibility Analysis of Emergency Shelters Based on Road Network

作　　者：于欢欢 徐春辉[1] 陈鹏 YU Huanhuan;XU Chunhui;CHEN Peng(College of Geography Sciences and Tourism,Jilin Normal University,Siping 136000,Jilin,China)

机构地区：[1]吉林师范大学地理科学与旅游学院,吉林四平136000

出　　处：《科技和产业》2024年第18期344-348,共5页Science Technology and Industry

基　　金：吉林省教育厅项目(JJKH20220434KJ,JJKH20230503KJ)。

摘　　要：应急避难所的可达性反映了当自然灾害和紧急情况来临时人们紧急避难规避风险的便利程度。通过收集长春市中心城区道路、应急避难所位置以及人口数据,基于ArcGIS桌面软件采用核密度分析、OD(origin-destination)成本矩阵等方法,分析长春市中心城区应急避难所的空间分布特征和可达性水平;对驾驶机动车和步行两种出行方式下不同时段到达避难所的人口进行了统计。结果表明,长春市中心城区的应急避难所设置较于集中,周边地区到应急避难所时间成本较高,区内少数人口受影响,应增设应急避难所。The accessibility of emergency shelters reflects the convenience of people emergency refuge and risk avoidance when natural disasters and emergencies occur.By collecting data on roads,emergency shelter locations,and population in the central urban area of Changchun,based on ArcGIS desktop software,kernel density analysis and OD cost matrix method were used to analyze the spatial distribution characteristics and accessibility level of emergency shelters in the central urban area of Changchun.Statistics were conducted on the population who arrived at shelters at different times under two modes of transportation,which are driving motor vehicles and walking.The result shows that emergency shelters in the central urban area of Changchun are relatively concentrated,the time cost from surrounding areas to emergency shelters is relatively high,and a small number of people in the area are affected,emergency shelters should be added.

关 键 词：应急避难所 可达性 OD成本矩阵 长春市中心城区 

分 类 号：X93[环境科学与工程—安全科学]