AASHTO

An official site of AASHTO offers standards, research, policy updates, technical guidance and resources across all US transportation modes: highways, rail, air, water, transit.

Transportation.org is the official digital platform of the American Association of State Highway and Transportation Officials (AASHTO), a national, nonprofit organization dedicated to improving and advancing the United States transportation system. The website provides comprehensive resources, technical guidelines, policy insights, and innovation updates that support state departments of transportation across all 50 states. It covers key areas including highways, transit, rail, freight, aviation, and emerging mobility technologies. Transportation.org also offers research publications, industry standards, training programs, committees, and news related to infrastructure development and transportation safety. With a strong focus on collaboration, the platform helps professionals, policymakers, engineers, and agencies shape a modern, efficient, and resilient transportation network for the nation.

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