Research on Traffic Simulation Scenario Construction and Fidelity Evaluation Method under Environment of i-VICS

Virtual Traffic Simulation has always played an irreplaceable role in the study of urban transportation system, especially in intelligent vehicle infrastructure cooperative system (i-VICS), which is difficult to implement testing. A significant challenge is that the construction of large-scale simulation environment requires much time and the authenticity of the traffic simulation is doubted for various reasons. This paper presents a simulation scenario construction and fidelity evaluation method, which can build the traffic network efficiently and obtain the appraisal results easily. In this paper, the architecture and main function of traffic simulation system is analyzed firstly, which can achieve the extraction of road data and realize the construction of road network with 50 intersections covering about 18 square kilometers in 48.201 seconds. Besides the analysis on the function of system, this paper also evaluates the fidelity of simulation system. The evaluation system is mainly consisting of the construction of index system and determination of index weight. The evaluation result shows that the virtual models and traffic scenario of the simulation system has good fidelity. Thus, the traffic simulation system can meet the needs of the general simulation.