关键词: 地图匹配, 无线定位, 动态时间弯曲, 模糊偏序关系

Abstract: In order to solve the problem of map matching in traffic information collection based on wireless positioning，a new map matching algorithm is proposed，which forms three characteristic variables time series data using instantaneous position，direction and length of the moving trajectories，then DTW methods are used to discover the similarities of the trajectories between the vehicle and candidate roads，finally the ordering method of fuzzy preference relations is used to evaluation the general similarity，the trajectory of mobile telephone and the trajectory which most similarity to it will be matched.The results obtained through this approach are promising.

Key words: map matching, wireless position, dynamic time warping, fuzzy preference relations