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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]
The Pershing Map was an early blueprint for a national highway system in the United States, with many of the proposed roads later forming a substantial portion of the Interstate Highway System. [1] It's the first official United States road map, and many of the proposed roadways were later incorporated into the current highway system.
The committee's report, Interregional Highways, released on January 14, 1943, recommended constructing a 40,000 miles (64,000 km) interstate highway system. [2] Interregional Highways prompted Congress to act. Although the financial exigencies and materials shortages of World War II would not permit construction of an interstate highway system ...
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 ...
The first Pennsylvania Department of Highways road maps were issued in September 1912, per "First Map Showing the State Roads". Harrisburg Telegraph . September 26, 1912. p. 7.
The system, as of 2010, has a total length of 47,182 miles (75,932 km), [25] making it the world's second longest after China's, and the largest public works project in US history. [ 26 ] The Interstate system joined an existing National Highway System , a designation created for the legacy highway network in 1995, comprising 160,000 miles ...
Within the route log, "U.S. Route" is used in the table of contents, while "United States Highway" appears as the heading for each route. All reports of the Special Committee on Route Numbering since 1989 use "U.S. Route", and federal laws relating to highways use "United States Route" or "U.S. Route" more often than the "Highway" variants.
Since the policy on numbering and designating US Highways was updated in 1991, AASHTO has been in the process of eliminating all intrastate U.S. Highways under 300 miles (480 km) in length, "as rapidly as the State Highway Department and the Standing Committee on Highways of the American Association of State Highway and Transportation Officials ...