Development of Vehicular and Personal Universal Longitudinal Travel Diary Systems Using GPS and New Technology: GPS and New Technologies to Improve Longitudinal Travel Surveys

摘要

This report provides an overview of travel surveys and the motivation for the research and development of the Global Positioning System Automated Travel Diary (GPS-ATD). The system requirements and specifications for the device development are presented and discussed. In addition, the detailed architecture, hardware, software, and user interface design are included. Vehicular and personal GPS-ATD systems were developed to support comprehensive traveler behavior studies. The GPS-ATD provides an intuitive user interface to capture trip activity information (trip purpose, travel mode, etc.), with minimal user input and burden during travel surveys. Each survey participant interacts with their own personal GPS-ATD, and information is automatically coordinated between personal and vehicular GPS-ATD units via ZigBee wireless. The system captures and logs data from the High-Sensitivity GPS (HSGPS) receiver, allowing subsequent identification of corridors, route lengths, and regional and inter-regional trips. The primary sensor is the HSGPS receiver. To obtain vehicle sensor information, the GPS-ATD uses wireless communications to the on-board diagnostics connector. Complete system testing, results, and user feedback are discussed. The report concludes with recommendations for future work related to the GPS-ATD and its use in the 2010 California Statewide Household Travel Survey.