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The following is a list of passenger automobiles assembled in the United States. Note that this refers to final assembly only, and that in many cases the majority of added value work is performed in other regions through manufacture of component parts from raw materials.
In 1952, AASHO permanently recognized the splits in US 11, [15] US 19, US 25, US 31, US 45, US 49, US 73, and US 99. [ 15 ] For the most part, the U.S. Routes were the primary means of inter-city vehicle travel; the main exceptions were toll roads such as the Pennsylvania Turnpike and parkway routes such as the Merritt Parkway .
The Pershing Map FDR's hand-drawn map from 1938. The United States government's efforts to construct a national network of highways began on an ad hoc basis with the passage of the Federal Aid Road Act of 1916, which provided $75 million over a five-year period for matching funds to the states for the construction and improvement of highways. [8]
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.
The highway system of the United States is a network of interconnected state, U.S., and Interstate highways. Each of the fifty states, the District of Columbia, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands, and the U.S. Virgin Islands own and maintain a part of this vast system, including U.S. and Interstate highways, which are not owned or maintained at the federal level.
There are 71 primary Interstate Highways in the Interstate Highway System, a network of freeways in the United States. These primary highways are assigned one- or two-digit route numbers, whereas their associated auxiliary Interstate Highways receive three-digit route numbers. Typically, even-numbered Interstates run east–west, with lower ...
This image is a work of a United States Department of Transportation employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain
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 ...