Secondary Data Sources

American Community Survey (ACS) – provides pedestrian and bicycle commuting data for census block groups. However, these data only include regular commuters, not those who occasionally walk or bike to work or those who walk or bike for non-work purposes. The U.S. Census Bureau surveys a small percentage of the population each year to develop 1-year, 3-year, and 5-year estimates. ACS data are accessible through American FactFinder.

National Household Travel Survey (NHTS) – daily travel data is collected for all trips, modes, purposes, trip lengths, and areas of the country. Data are available at the person- and household-level. The NHTS is updated every five to seven years.

Fatality Analysis Reporting System (FARS) – the National Highway Traffic Safety Administration (NHTSA) provides public data regarding fatal injuries suffered in motor vehicle traffic crashes. Fatality data can be downloaded or queried online.

General Estimates System (GES) – these data come from a nationally representative sample of police reported motor vehicle crashes that resulted in property damage, injury, or death.

Traffic Safety Facts – this annual report uses GES data for nonfatal crashes, combined with information on fatal crashes from FARS. In addition to a comprehensive report, there are fact sheets that focus on specific topics, including bicyclists and pedestrians.

National Survey of Bicyclist and Pedestrian Attitudes and Behavior – national survey data were collected in 2002 to ascertain the scope and magnitude of bicycle and pedestrian activity and the public’s behavior and attitudes regarding bicycling and walking. The project was jointly sponsored by NHTSA and the Bureau of Transportation Statistics.

Check with your state Department of Transportation for the availability of statewide bicycle and pedestrian data.