Abstract:Along with the rapid development of China"s national economy and the acceleration of urbanization, China’s city development is facing an extremely serious practical problem that is the traffic problems. The development of intelligent transportation system is a new way of thinking and method to solve the urban traffic problems. To develop the intelligent transportation systems, the most important and fundamental problem is to solve the traffic information collection issue. Compared to traditional methods, the traffic information collection application based on smart phone can greatly improve the efficiency of traffic survey and data accuracy. This study firstly introduces the processing of the raw data and describes an example of the raw data, and how to analyze the data made. Then, it introduces the method how to get travel trajectory, the average link length, the relative speeds, OD matrix and so on.