Conversion of Volunteer-Collected GPS Diary Data into Travel Time Performance Measures: Literature Review, Data Requirements, and Data Acquisition Efforts

Conventional travel-survey methodologies require the collection of detailed activity-travel information, which impose a significant burden on respondents, thereby adversely impacting the quality and quantity of data obtained. Advances in the Global Positioning System (GPS) technology has provided transportation planners with an alternative and powerful tool for more accurate travel-data collection with minimal user burden. The data recorded by GPS devices, however, does not directly yield travel information; the navigational streams have to be processed and the travel patterns derived from it. The focus of this research project is to develop software to automate the processing of raw GPS data and to generate outputs of activity-travel patterns in the conventional travel-diary format. The software will identify trips and characterize them by several attributes including trip-end locations, trip purpose, time of day, distance, and speed. Within the overall focus of the research, this report describes the data collection equipment specifications, data collection protocols, and data formats, and presents a comprehensive synthesis of the state of the practice/art in processing GPS data to derive travel diaries. This synthesis is intended as the basis for developing input specifications and processing algorithms for the software. A second objective of this report is to identify the data requirements for the software development purposes and document the efforts undertaken to acquire the data.

  • Record URL:
  • Supplemental Notes:
    • Report Date: December 31, 2004; Revised: January 31, 2005.
  • Corporate Authors:

    University of Texas, Austin

    Center for Transportation Research, 3208 Red River Street
    Austin, TX  United States  78705

    Texas Department of Transportation

    Research and Technology Implementation Office, P.O. Box 5080
    Austin, TX  United States  78763-5080

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Bhat, Chandra R
    • Srinivasan, Sivaramakrishnan
    • Bricka, Stacey
  • Publication Date: 2005-1-31


  • English

Media Info

  • Media Type: Web
  • Features: Appendices; References; Tables;
  • Pagination: 62p

Subject/Index Terms

Filing Info

  • Accession Number: 01003474
  • Record Type: Publication
  • Report/Paper Numbers: FHWA/TX-05/0-5176-1, Research Report 0-5176-1
  • Contract Numbers: 0-5176
  • Created Date: Aug 30 2005 9:34AM