基于GIS和道路网格的震害分析  

Analysis of earthquake disaster based on GIS and road grid

作　　者：聂树明[1] 吴华平[1] 

机构地区：[1]广东省地震局,广东广州510070

出　　处：《世界地震工程》2015年第1期155-160,共6页World Earthquake Engineering

基　　金：广东省防震减灾重点项目(1150201)

摘　　要：以道路网格作为计算单元进行震害分析,比采用传统的行政区、街道办、社区或公里网格具有较大优势,并更接近实际。道路网格是以道路中心线为基础,并结合其它如生命线系统中的地下管网而形成的多边形实体,包括线要素层和面要素层。道路网格在GIS中通常用于最短路径分析、最优路径分析、缓冲区分析和叠置分析;在震害分析中可应用于居住人数统计、高危害小区分析、网络(建立在供水、供气等管网基础上的)功能失效分析和灾害救助分析等。The earthquake disaster analysis, used the road grid as a computational unit has more advantages than the traditional administrative region, neighborhood offices, community or km grid, and it is Close to the actual situation. The road grid is based on the road centerline, and in combination with other polygons such as lifeline systems in the underground pipe network entity, including the layer of the line feature layer and the surface elements. The road grid is usually used in the shortest route analysis, the cheapest route analysis, buffer analysis and overlay analysis in the GIS, it is used in the estimating population statistics, high risk region analysis, the network, network （ built in the water supply, the gas supply pipe network on the basis of） function failure analysis and disaster relief analysis in the earthquake disaster estimation.

关 键 词：道路网格 震害分析 GIS 

分 类 号：TP315.9[自动化与计算机技术—计算机软件与理论]