About AASHTO. The American Association of State Highway and Transportation Officials – is a nonprofit, nonpartisan association representing highway and transportation departments in the 50 states, the District of Columbia, and Puerto Rico.

AASHTO is a nonprofit, nonpartisan association representing highway and transportation departments in the 50 states, the District of Columbia, and Puerto Rico. It represents all transportation modes: air, highways, public transportation, active transportation, rail, and water.

Mar 7, 2025 · The American Association of State Highway and Transportation Officials (AASHTO) welcomes the republication in whole or in part of any original content from The AASHTO Journal with proper attribution to the association and publication. This includes a link to direct visitors to the AASHTO Journal website.

AASHTO provides our members with smart solutions in transportation. As an AASHTO member you are invited to utilize our critical information, training, and data. AASHTO offers direct technical assistance to the States with unchallenged expertise.

2 days ago · AASHTO's 2024 Conference on Data Management and Analytics, Planning, and Performance-Based Management (September 16-20, 2024) St. Louis, Missouri & Sponsorship Opportunities Committee on Transportation Communications Meeting (September 22-25, 2024) Atlanta, GA & Sponsorship

AASHTO Store offers a wide range of publications, training materials, and other resources related to transportation engineering, design, construction, maintenance, and safety. The store provides access to valuable information and tools for transportation professionals, researchers, and students, including technical manuals, guidelines, and ...

Through AASHTO’s extensive committee structure, officials from across the nation meet to set policy goals and develop a wide range of voluntary recommended infrastructure construction, management, and operations standards and guidelines …

Apr 3, 2024 · These specifications are published in the AASHTO Standard Specifications for Transportation Materials and Methods of Sampling and Testing publication (also referred to as the Materials Book), a critical resource for maintaining the …

Aug 6, 2021 · The American Association of State Highway and Transportation Officials has released the 2021 edition of its Standard Specifications for Transportation Materials and Methods of Sampling and Testing and AASHTO Provisional Standards, commonly referred to as the “Materials Standards” guide.

Dec 13, 2024 · Twice each year, AASHTO’s U.S. Route Numbering Special Committee reviews and recommends to the AASHTO Board of Directors revisions, additions, or deletions to the U.S. numbered routes and Interstate Highway System.