Comparison of Self-Reported to Network-Calculated Trip Distances for the California Add-on to the 2009 National Household Travel Survey

This paper reports on the results of a comparison of self-reported trip distances and times with network- calculated distances and times for the California add-on sample of the National Household Travel Survey from 2009. Geocoded origins and destinations were obtained through a confidentiality agreement with the California Department of Transportation, and trip network distances and times were calculated using the MapQuest algorithm. All trips that were made on foot, by bicycle, or by car and that had origins and destinations that were geocoded to the exact address or intersection are included in this analysis (more than 100,000 trips). Trip times were compared only for car trips, while distances were compared for all three modes. The results indicate that self-reported distances and times are, on average, longer than calculated distances and times. Self-reported car and bicycle trip distances appear to be more reliable than self-reported walk trip distances and car trip times. Regression analysis identifies variables that affect how much the self- reported and calculated distances diverge.

• Supplemental Notes:
  • This paper was sponsored by TRB committee ABJ40 Travel Survey Methods.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Salon, Deborah
• Conference:
  • Transportation Research Board 93rd Annual Meeting
  • Location: Washington DC
  • Date: 2014-1-12 to 2014-1-16
• Date: 2014

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 12p
• Monograph Title: TRB 93rd Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Automobile travel; Bicycle travel; Data quality; Origin and destination; Travel surveys; Travel time; Trip length; Walking
• Uncontrolled Terms: Self reported data
• Geographic Terms: California
• Subject Areas: Data and Information Technology; Highways; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01519020
• Record Type: Publication
• Report/Paper Numbers: 14-5389
• Files: TRIS, TRB, ATRI
• Created Date: Mar 21 2014 2:20PM