Research on Modeling the Overpasses for Mapping and Navigation
With the rapid development of current mapping and navigation industry,and transportation network data becoming multi-model and multi-dimensional,research on modeling the overpasses for mapping and navigation becomes a tough issue.Though there are various road network models,their traditional road network structures do not solve the problem well.After analyzing the benefit and deficiency of existent strategies of expanding on the traditional node-arc model and raster based method to solve the planar network problem,this paper proposes a data model with three level structures.If the scope of road network is larger,such as district or country,its network topology can be expressed in LOD1,based on centerline,and its organization is similar to before-mentioned arc-node method.But for the navigation management or traffic flow analysis,the three-level network topology need to be expressed in LOD2,based on carriageway,and add attributes to some special nodes,such as the overpasses intersection.If the network is for high-level,real-world traffic management,its topology need to be expressed in LOD3,based on lane.Lastly,a method of integrating GDF with the proposed model is given.
Overpasses data models centerline carriageway lane GDF
Min Deng Lifan Fei
School of Resource and Environment Science of Wuhan University,129 Luoyu Road,Wuhan 430079,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）