As an important subsystem of intelligent transportation system, Cooperative Vehicle-Infrastructure Systems (CVIS) is a research and application hotspot in the world's transportation developed countries. Firstly, this paper sorted out the different typical scenarios in CVIS, then used analytic network process(ANP) to build the network structure model for the sorted out different scenarios. On this basis, an information interaction priority hierarchy model was established, the model fully considered the relationship among the factors and the objective information contained in the factors themselves, and determined the priority of the information interaction in CVIS scenarios. This paper divided 4 typical scenarios for CVIS on highways, and each scenario corresponded to a series of services. The priority of different services was determined through the information interaction priority hierarchy model, and the ranking results were analyzed from the perspectives of intragroup and global. The analysis results show that the priority of information interaction in the traffic safety and control scenario is significantly higher than that in other scenarios, and there is an obvious order of priority for different information interaction in the same scenario. In the CVIS on highways, the impact of different information interaction priorities needs to be considered to ensure the normal operation of the system.
 

Cooperative Vehicle-Infrastructure Systems(CVIS);highway scenarios;Analytic Network Process(ANP);information interaction priority