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The Manual on Uniform Traffic Control Devices for Streets and Highways (usually referred to as the Manual on Uniform Traffic Control Devices, abbreviated MUTCD) is a document issued by the Federal Highway Administration (FHWA) of the United States Department of Transportation (USDOT) to specify the standards by which traffic signs, road surface markings, and signals are designed, installed ...
This manual is the base bridge design manual that all DOTs use across the US. Manual for Assessing Safety Hardware (MASH), crash testing criteria for safety hardware devices for use on highways; it updates and replaces NCHRP Report 350. In addition to its publications, AASHTO performs or cooperates in research projects.
11th edition of the MUTCD, published December 2023. In the United States, road signs are, for the most part, standardized by federal regulations, most notably in the Manual on Uniform Traffic Control Devices (MUTCD) and its companion volume the Standard Highway Signs (SHS).
List of FMCSA standards for motor vehicles Archived 2013-03-28 at the Wayback Machine "Timeline of Federal Motor Vehicle Safety Standards by Year and Notable Technologies" (PDF). National Highway Traffic Safety Administration. 2012. Archived from the original (PDF) on 2021-06-24
Legislation signed by President Lyndon Johnson earlier on September 9, 1966, included the National Traffic and Motor Vehicle Safety Act (Pub. L. 89–563) and Highway Safety Act (Pub. L. 89–564) that created the National Traffic Safety Agency, the National Highway Safety Agency, and the National Highway Safety Bureau, predecessor agencies to ...
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Guard rails were only sometimes effective at the time. It was not until the 1960s that safety testing ensured adequate protection, and even then only for vehicles of a limited weight-class. Road traffic crashes have become one of the world's largest public-health and injury-prevention problems. The issue is all the more acute because the ...
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