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Abstract: 2D GIS technology is mainly used in traffic management system, 英语论文范文especially in the field of traffic safety management. Based on the analysis of D GIS and the shortcomings of the usage of D e-map in the traffic safety management system, this paper discussed the benefit of 3D e-map and the possibility of usage it in the traffic safety management system. Some key technologies of D traffic safety system were discussed and the methods of D modeling were presented by the use of Multigen Creator and Vega.
Keywords: traffic safety; management system; 3D GIS; Multigen Creator; Vega

1 Introduction
As we all know, traffic is a very complex system that is influenced by man, vehicle, road and environment. The traffic safety management system is used to improve the traffic condition and safety. In order to fulfill this aim, we should consider the relation among the four traffic factors in the designing and establishment of the traffic safety management system. There are many traffic safety management systems that design based on the D GIS, which use the D map as the information management and displaying platform. If fact, the four traffic factors areD spatial objects, theD map cannot indicate the real world condition, so the traffic safety management withD map cannot fully accomplish the mission of improving the traffic condition and safety. The 3D map is the key technology in 3D GIS, which is a hot study field all over the world. After accident, USA begins to study the real-time 3D GIS for quick emergence [1]. In China, 3D GIS was studied by some universities and institutes, but there was not actually usage in the traffic management system.
In this paper, a method with D map to design and establish the traffic safety management system was presented. With the D map data of the same city, the D map of Changchun city, Jilin Province, China was constructed and an experimental system was also built with the D map and traffic safety database.
2 Problem Statement
2.1 The Shortcomings of 2D Map
References
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[2] Hu Zhengcheng, Keiichi Uchimura. Solution of Camera Registration Problem Via 3D-2D Parameterized Model Matching for On-road Navigation, International Journal of Image and Graphics 2004, 13(1): 1-18
[3] K Fujii and T Arikawa. Urban Object Reconstruction Using Airborne Laser Elevation Image and Aerial Image, IEEE Transactions on Geoscience and Remote Sensing, 2002, 40(10): 214-216
[4] Mao-Lin Chiu. Constructing a 3D Urban Model for Urban Design and Visual Simulation – A Case Study of the Tainan City, Proceedings of the 2001 Automatization Digital Engineering Surveying Symposium, 2001
[5] Roland Billen. Introduction of 3D Information in Urban GIS: A Conceptual View, International archives of Photogrammetry and Remote Sensing, VolXXXIII, Part3A, 2000
[6] Chang S K. A visual language compilar for information retrieval by visual reasoning. IEEE Transaction on software engineering, 1990, 16本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。