For the intelligent traffic guidance system in the domestic application of immature, this paper used the improved genetic algorithm to optimize the location of VMS in the road network, and improved the coding method and selection method in the basic genetic algorithm. At the same time, it used the dynamic decay mutation probability to perform the mutation operation, used the multi-objective optimization to singulate the multi-objective function, and introduced the attenuation influence factor for the different degree of VMS on the downstream of the road segment. Then, it carried out the VMS layout simulation test with the complex virtual road network as the simulation example. The results show that the method uses VMS utility and economic cost as the evaluation index, it can achieve the optimal distribution of VMS site in the traffic network and the purpose of saving resources, which has certain scientificity and practicability.

[2019-01-05] Printed Article /doc/2017.06.0645/v2