Construction of Traffic Information Service System for Networking Expressways

Starting from the status quo of deficiency in traffic information services for our national networking expressways,this paper probes into causes of imperfect traffic information services.Based on the ITS system framework,the paper proposes a system framework of traffic information services suitable for our national networking expressways,expatiates composition and conditions for realization of the traffic information service system,and puts forward construction targets and prospects of the traffic information service system by stages.