In this paper, the authors have described a series of procedures that have been developed to manipulate data collected from GPS devices carried by people or placed in personal vehicles, and used to produce records of the trips made over a period of days or weeks. By setting up various algorithms and rules, the authors have found it to be possible to break the data up into trips with approximately a 95 percent correct rating in identifying real trips. The authors were able to obtain a more complete picture of where a person/vehicle travelled while they had the GPS device. Finally, procedures were developed to allow the impute the mode and purpose of the majority of the recorded trips. (a) For the covering entry of this conference, please see ITRD abstract no. E213716.
Samenvatting