Research on the realization of 3D urban traffic simulation system

This paper makes an intensive study of the realizations and related key technologies in the 3D urban traffic simulation system. First, the system can quickly edit the scenes of the 3D urban, including buildings, roads, etc. It describes the roads using the graph structure, then, the constrained Delaunay algorithm is applied to reconstruct the mesh of the road and terrain. The most important, the system realizes the intelligent automatic movement of the vehicles. The technologies of LOD, back-face culling, navigation points, B-tree and so on are introduced to improve the simulation efficiency. Thus it can be used to simulate the traffic, plan the design of urban road.