A Service Oriented Urban Traffic Simulation Platform on Grid

Urban traffic congestion has become a major concern for many cities throughout the world. Traffic simulation is an important approach to studying a real or proposed traffic system. As one approach of traffic simulation, microscopic traffic simulation defines the behavior of each interactive object in the traffic network, such as a vehicle and a traffic light through an individual model so that we can observe the details of traffic information in a certain scenario. Since microscopic model requires large computational power and data storage power, new simulation system architecture is needed. In this paper we propose a service-oriented urban traffic simulation platform in grid environment. The simulation platform which combines grid and HLA(High Level Architecture). With HLA, a large-scale distributed simulation can be constructed using even a huge number of geographically distributed computing nodes. With grid it realizes resource sharing and promotes computing efficiency with grid in selection of optimal travel scheme. Simultaneously, it is the demonstration of practising and applying information grid technology. It can promote further study and development of traffic simulation technology and offer better services for traffic information users.