Summary of Travel Trends 2001 National Household Travel Survey

A complete comparison between the 1995 and 2001 survey methods is summarized in Appendix 2.While improvements to the survey process are encouraged, changes in the 1995 survey method brought about significant data compatibility issues.To address these issues, the 1990 survey data were adjusted to allow comparison to the 1995 survey.In this report, both the original 1990 data and the adjusted 1990 data are reported to facilitate trends analysis.The reader is advised to compare the 1969-1983 survey results to the unadjusted 1990 data, and the 1995 and 2001 survey results to the adjusted 1990 data.The method used to adjust the 1990 travel data is described in Appendix 3. REPORT ORGANIZATIONThis report highlights important travel trends in tabular and graphic format.Statistics are categorized by topic.The report begins with a summary of travel and demographic changes.Next, travel changes are examined from an individual household perspective, then from an individual person perspective.This report concludes with trip-making statistics of sub-populations such as women, households without vehicles, low-income households, and the elderly.No attempt is made in this report to present all of the data or to analyze and discuss the data in any depth.Standard error estimates for key statistics are presented in Appendix 4. 1995 NPTS 66,901 131,697 508 1.39 2001 NHTS 60,690 145,272 418 1.14 Walk TripsRespondents to the 2001 NHTS were specifically prompted to report walk trips.Since this was not done in the previous surveys, the increases in the number of walk trips can be explained, at least in part, by this change in methodology.