2001–2002 Southern California Regional Travel Survey

The 2001–2002 Southern California Regional Travel Survey collected data on household characteristics and travel behavior to update regional travel demand models. It covered six counties including Imperial, Los Angeles, Orange, Riverside, San Bernardino, and Ventura.

Data Collection Agency

The Southern California Association of Governments (SCAG) contracted with NuStats Partners to conduct the survey following the 2000 decennial census.


Survey data collection occurred in 2001 and 2002 using computer-assisted telephone interviewing (CATI) and travel diaries. Roughly 17,000 households completed the survey. An additional global positioning system (GPS) sample was taken for the purpose of auditing the self-reported diaries; data derived from this sample are provided for download below. Battelle provided data collection support for the GPS sample.

Survey Records

Survey records include 40,376 participants.

More Information

For more information about the survey, see the SCAG Year 2000 Post-Census Regional Travel Survey: Final Report of Survey Results.

For more information about the GPS component of the survey, see the SCAG Year 2000 Post-Census Regional Travel Survey: GPS Study Final Report.

Transportation Data

The SCAG data set contains data from 17,038 households that participated in one or more areas of study. Of the 17,038 households, 16,939 completed the travel survey portion of the study and 468 completed the vehicle GPS portion of the study. For details on available data and variable definitions, see the data dictionary.

Transportation data are available as zipped files. Download Winzip.

Full Survey Data

(excluding any GPS)


Data Sorted by Vehicle

(with unfiltered GPS speed, if included)


For the study's latitude and longitude data, learn how to access the spatial data.

How to Cite the Data

If you use TSDC data in a publication, please contact us and include a citation in your publication consistent with the following format:

"Transportation Secure Data Center." (2017). National Renewable Energy Laboratory. Accessed Jan. 15, 2017: www.nrel.gov/tsdc.