The Bureau of Transportation Statistics (BTS), a part of DOT’s Research and Innovative Technology Administration (RITA), prepares and presents statistics in many formats. The ones listed below are especially useful.

There are many organizations, governmental and quasi-governmental, that are important places for publications in this field. Some, such as the Department of Transportation at both state and national levels, allow free access to their materials. Others, such as AASTHO charge for their publications. Please note the options below and add additional groups through the comment feature.