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A map of the Strategic Highway Network, one component of the NHS Map of average freight truck traffic on the NHS in 2015. According to the Federal Highway Administration, the 160,000-mile (260,000 km) National Highway System includes roads important to the United States' economy, defense, and mobility, from one or more of the following road networks (specific routes may be part of more than ...
United States Numbered Highways are the components of a national system of highways administered by the American Association of State Highway and Transportation Officials (AASHTO), a nonprofit, nonpartisan association, [3] and the various state departments of transportation.
National Network marker as defined in the MUTCD. The National Network (or National Truck Network) is a network of approved state highways and interstates for commercial truck drivers in the United States. The Surface Transportation Assistance Act of 1982 authorized the establishment of a national network of highways designated for use by large ...
The Federal-aid primary highway system (FAP system) is a system of connected main highways, selected by each state highway department subject to the approval of the Bureau of Public Roads. It encompasses routes of the Interstate System and other important routes serving essentially through traffic with their urban extensions, including ...
L. I. Hewes opened the Western Headquarters Office of the Bureau of Public Roads to administer federal-aid highway and direct federal highway construction programs in 11 western states, including Alaska and Hawaii. It provided federal 50–50 matching funds for state highway building up to 7 percent of roads statewide. [1]
The FHWA's role in the Federal-aid Highway Program is to oversee federal funds to build and maintain the National Highway System (primarily Interstate highways, U.S. highways and most state highways). This funding mostly comes from the federal gasoline tax and mostly goes to state departments of transportation. [7]
[citation needed] The reverse happened with U.S. Route 57, originally a Texas state highway numbered to match Mexican Federal Highway 57. [9] In the 1950s, the numbering grid for the new Interstate Highway System was established as intentionally opposite from the US grid insofar as the direction the route numbers increase.