An Advanced Traveler Information System with Emerging Network Technologies

Advanced Traveler Information Systems (ATIS) plays an important role in intelligent transportation systems; it assists travelers with pre-trip and en route travel information to improve the convenience, safety and efficiency of travel. In this paper we present a highway ATIS system which provides more decisive and valuable travel information than conventional ATIS systems by integrating it with newly emerging Web service and wireless communication technologies. Following the Web service standards, our system can aggregate multiple travel-related data from different sources and provide value-added services to application developers or users. Through multimedia messaging services or wireless LAN communication, we can support access of the system to mobile travelers with visualized real-time traffic information for pre-trip planning or en route referencing. In order to make our system more reliable and useful, the methods of lost data reconstruction and travel time prediction are also proposed and examined.