National Household Travel Survey, 2001: [United States] (ICPSR 4047)

Published: Jan 18, 2006

Principal Investigator(s):
United States Department of Transportation. Federal Highway Administration


Version V1

The 2001 National Household Travel Survey is a combination of the Federal Highway Administration's Nationwide Personal Transportation Survey (NPTS) and the Bureau of Transportation Statistics American Travel Survey (ATS), which were conducted separately in previous years. The National Household Travel Survey serves as the nation's inventory of daily personal travel. It collects data on daily trips including purpose of the trip, means of transportation used, travel time, vehicle occupancy, driver characteristics, and vehicle attributes. These data are collected for all personal trips, all modes and purposes, all trip lengths, and all areas of the country, urban and rural. The 2001 National Household Travel Survey collected additional data on trips to a destination 50 miles or more from home (long-distance travel) that started from home and ended at home during a four-week travel period. This was a change from previous years, where the travel range was 75 miles or more. Part 1, the Household File, contains data unique to a household, such as the number of household vehicles, household income, the relationship between household members, demographic information for household members, and educational level of the household respondent. Part 2, the Person File, contains demographic information, driver status, information on travel to work, miles driven, customer satisfaction, and Internet use. Part 3, the Vehicle File, contains data relating to each of the household's vehicles, including annualized vehicle miles. Part 4, the Travel Day Trip File, contains data about each trip the person made on the household's randomly assigned travel day. Parts 5 and 6 are weight files for the Household File (Part 1) and the Person File (Part 2), respectively.

United States Department of Transportation. Federal Highway Administration. National Household Travel Survey, 2001: [United States]. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2006-01-18.

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United States Department of Transportation. Research and Innovative Technology Administration. Bureau of Transportation Statistics

United States Department of Transportation. Federal Highway Administration

United States Department of Transportation. National Highway Traffic Safety Administration

2001 -- 2002

2001-03 -- 2002-05

The user guide is provided by the principal investigator as a Portable Document Format (PDF) file.

Although data were collected in 2001 and 2002, the study title is National Household Travel Survey, 2001.

The sample is a Random Digit Dialing (RDD) sample of approximately 26,000 households in the national survey and approximately 40,000 households from nine add-on areas.

Civilian, noninstitutionalized population of the United States living in households with telephones.

telephone interviews

survey data



2006-01-18 File CB4047.ALL.PDF was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads.


  • Data in this collection are available only to users at ICPSR member institutions.

  • The citation of this study may have changed due to the new version control system that has been implemented.
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