TRAFFIC INFORMATION SERVICE IN ROAD NETWORK USING MOBILE LOCATION DATA

The purposes of this study were to observe mobile location data for a road network continuously, and to apply the data to a system providing a dynamic traffic information service. A method of collecting location data using mobile communication devices is described. The proposed method is examined using experimental data. A field test in an actual network was used to examine the validity and practical limitations of the proposed method, and confirmed that mobile location data can be applied to a road traffic information service. The proposed method can overcome problems of existing road traffic information systems that depend on traffic conditions determined at fixed observation sites. Mobile location data will make it possible to provide more dynamic and precise traffic information without a large investment in road facilities. For the covering abstract see ITRD E114174.