This WebResource contains the multiple-volume collection of Selected Studies in Transportation Law (SSTL), published jointly by the National Cooperative Highway Research Program (NCHRP) and the Transit Cooperative Research Program (TCRP). The collection includes eight volumes released on CD-ROM from 2003–09, five of which were updated from 2010–19.


TRB’s Selected Studies in Transportation Law collection is designed to help state highway departments and public transportation agencies keep abreast of operating practices and legal elements of specific problems in highway and transit law.

Legal Research Suggestions

Do you have an idea for legal research in highway or transit law? If you know a problem that has a broad interest and is timely and critical to the transportation legal community at large, please submit it here.

Requests for Proposals (RFPs)

RFPs for new NCHRP legal research projects are here.

RFPs for new TCRP legal research projects are available here.

The opinions and conclusions expressed or implied in the materials provided on this website are those of the researchers who performed the research and are not necessarily those of the Transportation Research Board; the National Academies of Sciences, Engineering, and Medicine; or the program sponsors.

About Us

The Transportation Research Board is one of seven major programs of the National Academies of Sciences, Engineering, and Medicine. The mission of the Transportation Research Board is to provide leadership in transportation improvements and innovation through trusted, timely, impartial, and evidence-based information exchange, research, and advice regarding all modes of transportation. The Board’s varied activities annually engage about 8,000 engineers, scientists, and other transportation researchers and practitioners from the public and private sectors and academia, all of whom contribute their expertise in the public interest. The program is supported by state transportation departments, federal agencies including the component administrations of the U.S. Department of Transportation, and other organizations and individuals interested in the development of transportation.