One of the core technologies for communication system in ITS is the dedicated short range communication (DSRC) between roadside equipment (RSE) and onboard equipment (OBE). It becomes key technology in the deployment of ITS infrastructure. For evolution of ITS services, interactive communication is highly required. DSRC system provides an efficient communication means for transmitting and receiving information to moving vehicles. To support DSRC system, the communication infrastructure is needed. In this paper, we derived a methodology which is needed to select the proper communication system for some alternatives in our situation. By cost-effectiveness analysis and forecasting of some parameters such as demand of DSRC, RSE and OBE, the alternatives are assessed. Based on the analysis of the alternatives, one can choose an efficient communication system. For the covering abstract see IRRD E102946.
