基于加权Voronoi图的城市地震应急避难场所责任区的划分
|
摘要
根据地震应急避难场所和责任区域的特点,提出以各场所的覆盖半径为权重,使用加权Voronoi图方法在GIS技术上对场所责任区域进行空间剖分。提出影响覆盖半径的七个因子,给出各因子权重计算方法并编制专用程序进行各因子的权重计算,得出加权覆盖半径后,可确定各场所较合理的空间影响范围,并与普通Voronoi图方法进行对比。该方法可作为避难场所规划的依据,达到科学决策的目的。
Base on the characteristics of urban earthquake emergency shelters and responsibility space,a method for regionalizing the shelters responsibility space is presented based on weighted voronoi diagram through the GIS technology.Using the radius of shelters responsibility space as the weight of WVD,7 influence factors on the radius are offered,and the method and the program of factors calculation are given.The method was applied to a optimal responsibility space regionalization of shelters in comparison,with the results of the method of orderly voronoi diagram.Adoption of the method in the shelter plan would make a preferable decision.
Base on the characteristics of urban earthquake emergency shelters and responsibility space,a method for regionalizing the shelters responsibility space is presented based on weighted voronoi diagram through the GIS technology.Using the radius of shelters responsibility space as the weight of WVD,7 influence factors on the radius are offered,and the method and the program of factors calculation are given.The method was applied to a optimal responsibility space regionalization of shelters in comparison,with the results of the method of orderly voronoi diagram.Adoption of the method in the shelter plan would make a preferable decision.
引文
[1]高孟潭.新的国家地震区划图[J].地震学报,2003.25(6):630~636.
[2]姚清林.关于优选城市地震避灾场地的某些问题[J].地震研究,1997.19(3):244~248.
[3]杨文斌,韩世文.地震应急避灾场所的规划建设与城市防灾[J].自然灾害学报,2004.13(1):126~132.
[4]苏幼坡.城市地震避难所的规划原则与要点[J].灾害学,2004.19(1):87~92.
[5]冯荟,缪升.避震疏散与城市的可持续发展[J].昆明理工大学学报(理工版),2004.29(2):84~89.
[6]周天颖,简甫任.紧急避灾场所区位决策支持系统建立之研究[J].水土保持研究,2001.18(1):17~24.
[7]许树柏.层次分析原理[M].天津:天津大学出版社,1988.
[8]北京工业大学抗震减灾研究所.泉州市城市抗震防灾规划研究报告之十(泉州市规划区避震疏散的研究)[R].2004.1.
[9]陈军.Voronoi动态空间数据模型[M].北京:测绘出版社,2002.
[10]Okabe A,Boots B,Sugihara K.Spatial tessellations:concepts andapplications of Voronoi diagrams[M].UAS:John Wiley&Sons,1992.
[11]Aurenhammer F.Voronoi diagrams-a survey of a fundamental datastructure[J].ACM Computing Surveys,1991.23:345~405.
[12]C.A.Wang,P.Y.Tsin.Finding constrained and weighted Voronoidiagrams in the plane[A].Proceedings of the Second CanadianConference in Computational Geometry[C].Ottawa,August 1990,pp.200~203.
[2]姚清林.关于优选城市地震避灾场地的某些问题[J].地震研究,1997.19(3):244~248.
[3]杨文斌,韩世文.地震应急避灾场所的规划建设与城市防灾[J].自然灾害学报,2004.13(1):126~132.
[4]苏幼坡.城市地震避难所的规划原则与要点[J].灾害学,2004.19(1):87~92.
[5]冯荟,缪升.避震疏散与城市的可持续发展[J].昆明理工大学学报(理工版),2004.29(2):84~89.
[6]周天颖,简甫任.紧急避灾场所区位决策支持系统建立之研究[J].水土保持研究,2001.18(1):17~24.
[7]许树柏.层次分析原理[M].天津:天津大学出版社,1988.
[8]北京工业大学抗震减灾研究所.泉州市城市抗震防灾规划研究报告之十(泉州市规划区避震疏散的研究)[R].2004.1.
[9]陈军.Voronoi动态空间数据模型[M].北京:测绘出版社,2002.
[10]Okabe A,Boots B,Sugihara K.Spatial tessellations:concepts andapplications of Voronoi diagrams[M].UAS:John Wiley&Sons,1992.
[11]Aurenhammer F.Voronoi diagrams-a survey of a fundamental datastructure[J].ACM Computing Surveys,1991.23:345~405.
[12]C.A.Wang,P.Y.Tsin.Finding constrained and weighted Voronoidiagrams in the plane[A].Proceedings of the Second CanadianConference in Computational Geometry[C].Ottawa,August 1990,pp.200~203.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心