The 2001 National Household Travel Survey (NHTS) was a joint effort undertaken by the Bureau of Transportation Statistics (BTS) and the Federal Highway Administration (FHWA) to collect data on the volumes and patterns of passenger transportation. The 2001 survey collected detailed information on both the long-distance and local travel by the American public. This included items such as the mode(s) of transportation, purpose of the trip, duration and distance, and accompanying household members. In addition, it also captured the demographic, geographic, and economic data for analysis purposes.

> 2017 NHTS conducted by the FHWA