AASHTO's Centennial: Leading the Way with Collaborative, Applied Research

The American Association of State Highway Officials (AASHO) was formed in 1914 as a forum to address highway issues and to promote state transportation priorities at the national level. In recognition of the association’s 100th anniversary, this article summarizes its history and highlights its major accomplishments. The association was renamed the American Association of State Highway and Transportation Officials (AASHTO) in 1973. Throughout its history, the association has built on the state-federal relationship to strengthen and sustain the national highway and transportation system. The success of the AASHO Road Test, the largest and most significant pavement research in the 20th century, is highlighted as an example of the association’s leadership in sponsoring, developing and applying solutions to transportation-related problems.