Study on the Data Fusion of Floating Car and Sensors based on Fuzzy Theory -- A Case Study of Beijing

Information service is one of the objective of ITS. The origin information has two main source, one is fixed detectors such as loops, microwave, ultrasonic, CCTV etc. the other is floating car. Floating Car Data(FCD) system is a new and prosperous system for traffic information collection and is especially suitable for cities in China. As to the situation of China, fixed detectors have not enough occupancy, so floating car data will be a good complement. But how to make a good use of both of them is a problem worth to research. Data fusion of these two sources is one of the key problem. This paper introduced the FCD system and its merits at first. Then the data fusion method of FCD was presented. At last, this paper put forward an application case in Beijing of FCD system.