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FHWA

NHTS Datasets

2009 NHTS

User's Guide

Survey Data Available in Also see the SAS Proc Format library source code.
Replicate Weights Available in
2010 Census Boundary Update 2010 Census Boundary update for the 2009 NHTS in SAS Windows binary and CSV formats. See the documentation for additional information.
Roster File Roster file in SAS Windows binary format with Proc Format source code, and documentation.
Trip Chaining Available in Also see the documentation, the handout, and the 1995/2001 Trip Chaining datasets.
Transferability Statistics The Bureau of Transportation Statistics (BTS) has developed 2009 NHTS Transferability Statistics  by census tract. Support is provided by BTS.

2001 NHTS

User's Guide, Release Notes

Survey Data Available in Also see the SAS Proc Format library source code.
Replicate Weights Available in
Trip Chaining Trip chain datasets for 2001 NHTS and 1995 NPTS in SAS Windows binary (120 MB). For additional information, see the Trip Chaining handout.
Transferability Statistics 2001 NHTS Transferability national files in CSV format for

1995 NPTS

User's Guide, Release Notes

Survey Data Available in Also see the source code for the SAS Proc Format library and the SAS macro to calculate standard errors.
Trip Chaining Trip chain datasets for 2001 NHTS and 1995 NPTS in SAS Windows binary (120 MB). For additional information, see the Trip Chaining handout.

1990 NPTS

User's Guide

Survey Data Available in
Travel Day with Adjusted Weights Available in SAS Transport. For additional information, see the Summary of Travel Trends, Appendix 3.

1983 NPTS

For additional information including introduction, glossary of terms, User's Guide, reports, and SAS datasets see the FHWA 1983 NPTS Web site.

Survey Data Available in

Citation

To recognize the valuable role of National Household Travel Survey (NHTS) data in the transportation research process and to facilitate repeatability of the research, users of NHTS data are asked to formally acknowledge the data source. Where possible, this acknowledgement should take place in the form of a formal citation, such as when writing a research report, planning document, on-line article, and other publications. The citation can be formatted as follows:

U.S. Department of Transportation, Federal Highway Administration, 2009 National Household Travel Survey. URL: https://nhts.ornl.gov.

Developed by the CTA, ORNL under funding from the FHWA