This paper introduces the algorithm and main function of the self-researched prototype simulation system of pedestrian in MTR hub.Then Fuxingmen hub based on such simulation system is simulated.By comparing the simulation results and the practical survey data,the practicality and accuracy of such simulation system is verified.Finally,the main error sources in the simulations are studied.

数据挖掘是解决数据库中数据急剧增大与利用率低之间矛质的必然结果。数据库知识发现(kdd)技术的应运而生使得人们在实际工作中消耗大量财力和物力的数据得以利用。这也是数据库知识和人工智能技术发展的结果。

The simulating application system,a Virtual Reality System for Urban Overpass Bridges,which determines to choose Database System and Graphic System from China Academy of Building Research,was developed at VC++ platform combining OpenGL graphic library based on objecte-orientd theory.The system takes the man-machine interaction and the template parametric input as the modeling methods.The results show that the simulating system can realize overpass bridge 3D-modeling vividly,scene realistic image render,real-time roaming,and so on.It can really do a lot of aided work for bridge engineers.