Design of GPS-Based Floating Vehicle Data Using Data Fusion to Provide Instant Traffic Information for City Instant Traffic Service

In this paper, the authors propose a design methodology of GPS-based floating vehicle data (GFVD) system by using historical data, real-time GPS floating vehicle data and data fusion technology to provide instant traffic information collection for Kaohsiung city. There were more than 500 taxis and 850 fleet dispatching vehicles served as probing cars and joined the fleet management project to provide instant traffic information. The authors utilize the GPS data in their GFVD system to calculate traffic information instead of vehicle detection (VD) deployed in Kaohsiung city. From the historical data and fusion algorithm, the completed general road sections are 11072 roads, 969 location paths and with section of road’s analysis, without correcting TL road names. The correct percentage of GFVD has reached to 93.1 % in Kaohsiung City. Thus, GFVD system can provide a cheaper and reliable data with instant traffic information for any wait-for-test road. It can compensate for the shortage of infrastructure construction such as VD in a big city.