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The National Highway System (NHS) includes the Interstate Highway System as well as other roads important to the nation's economy, defense, and mobility. The NHS was developed by the Department of Transportation (DOT) in cooperation with the states, local officials, and metropolitan planning organizations (MPOs).
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 ...
Nov 7, 2023 · World Map » USA » USA Road Map. USA road map Click to see large. Description: This map shows cities, ... United States Map; City Maps. New York City Map; London Map ...
Jun 29, 2017 · The National Highway System (NHS) includes the following subsystems of roadways (note that a specific highway route may be on more than one subsystem): Interstate: The Eisenhower Interstate System of highways retains its separate identity within the NHS.
In 1918, Wisconsin became the first state to number its highways in the field followed by Michigan the following year. [1] In 1926 the American Association of State Highway Officials (AASHO) established and numbered interstate routes (United States Numbered Highways), selecting the best roads in each state that could be connected to provide a national network of federal highways.
