Spatial-temporal data model and fractal analysis of transportation network in GIS environment
How to organize transportation data characterized by multi-time,multi-scale,multi-resolution and multi-source is one of the fundamental problems of GIS-T development.A spatial-temporal data model for GIS-T is proposed based on Spatialtemporal-Object Model.Transportation network data is systemically managed using dynamic segmentation technologies.And then a spatial-temporal database is built to integrally store geographical data of multi-time for transportation.Based on the spatial-temporal database,functions of spatial analysis of GIS-T are substantively extended.Fractal module is developed to improve the analyzing in intensity,density,structure and connectivity of transportation network based on the validation and evaluation of topologic relation.Integrated fractal with GIS-T strengthens the functions of spatial analysis and enriches the approaches of data mining and knowledge discovery of transportation network.Finally,the feasibility of the model and methods are tested thorough Guangdong Geographical Information Platform for Highway Project.
Transportation Network GIS Spatial-temporal data model Fractal
FENG Yongjiu TONG Xiaohua LI Yangdong
Department of Surveying and Geo-informatics,Tongji University,Shanghai 200092,China
国际会议
第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)
广州
英文
2008-06-28（万方平台首次上网日期，不代表论文的发表时间）