Realization of Distributed Traffic Simulation System with SCA and SDO

To accomplish the optimization for bus priority on large scale road network, the distributed traffic simulation (DTS) system with the architecture based on service oriented architecture (SOA) and multi-agents is designed. In the DTS system, compound simulation models are adopted to accelerate the simulation. Simulation road network is persisted in Oracle database through object-relation mapping (ORM). New modules are encapsulated into service component architecture (SCA) composites for heterogeneity and reusability. Data transferred through services are packaged with uniform service data object (SDO) data module to simplify data programming in heterogeneous environment and advance the interoperability of services. The whole system with heterogeneous implements is deployed in different environments, and its validity is demonstrated by an experimental simulation on a given real road network.