American Civil Service and Transportation Association (AASHTO)

Article

January 22, 2022

The American Association of State Highway and Transportation Officials (AASHTO) is a standard-setting body that publishes specifications, test reports, and guidelines used in the design and construction of roads in the United States. Despite its name, the association represents not only highways but also air, rail, water, and public transportation. Although AASHTO sets transportation standards and policies for the United States as a whole, AASHTO is not a federal government agency; rather, it is an organization of the states themselves. AASHTO policy is not federal laws or policies, but the coordination of state and transport laws and policies.

Purpose

The American Association of Public Highway Officials (AASHO) was founded on December 12, 1914. Due to the expansion of the scope of all modes of transport on November 13, 1973 it was renamed the American Association of State Highway and Transportation Officials (AASHTO). Membership AASHTO has the right to vote in the Department of Transportation of each state (DOT), as well as the relevant departments of Puerto Rico and the District of Columbia. Non-voting associates include the US Department of Transportation, some US cities, counties, toll road operators, most Canadian provinces, as well as the Hong Kong Road Department, the Turkish Ministry of Public Works, the Nigerian Highway and Transportation Association. Officials.

Publications

A Policy on Geometric Design of Highways and Streets, often referred to as the Green Paper because of the color of the cover. This book covers the functional design of roads and highways, including the following elements: location of intersections, horizontal curves and vertical curves. Standard Specifications for Transportation Materials and Methods of Sampling and Testing. AASHTO LRFD Bridge Design Specifications. A basic bridge design guide used by all DOTs in the United States. The Manual for Assessing Safety Hardware (MASH) covers destructive road safety testing.

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