关键词: 居民出行调查, 手机定位, 面积判断算法, 交通OD

Abstract: Origin destination (OD) traffic data is one of the most important basic data in the traffic planning. Although the traditional traffic inquiries with pen，paper，telephone etc. are simple，they also have many limitations. With the development of information and mobile communication technologies，it is a hot issue to collect traffic data by mobile phone location technology. The consecutive location of travelers is traced by CDMA communication network and gpsOne technology. Then the information of beginning and end points location is extracted by data processing. Combining with the given traffic region division，the OD data of travelers can be obtained by area-judgment calculation，which is a part of the algorithm between point and polygon. Finally，the proposed method is used to make an OD survey at the area of Yangjiaping in Jiulongpo District in Chongqing，and topics of OD centralized occurrence and OD-line are obtained.

Key words: residents’trip investigation, cell phone location, area-judgment calculation, traffic OD