National Highway System (United States)
The National Highway System is a network of strategic highways within the United States, including the Interstate Highway System and the United States Numbered Highway System, as well as other roads serving major airports, ports, military bases, rail or truck terminals, railway stations, pipeline terminals and other strategic transport facilities. Altogether, it constitutes the largest highway system in the world.
Individual states are encouraged to focus federal funds on improving the efficiency and safety of this network. The roads within the system were identified by the United States Department of Transportation in cooperation with the states, local officials, and metropolitan planning organizations and approved by the United States Congress in 1995.
Legislation
The Intermodal Surface Transportation Efficiency Act in 1991 established certain key routes such as the Interstate Highway System, be included. The act provided a framework to develop a National Intermodal Transportation System which "consists of all forms of transportation in a unified, interconnected manner, including the transportation systems of the future, to reduce energy consumption and air pollution while promoting economic development and supporting the Nation's preeminent position in international commerce".The National Highway System Designation Act of 1995 is a United States Act of Congress that was signed into law by President Bill Clinton on November 28, 1995. The legislation designated about of roads, including the Interstate Highway System, as the NHS.
Aside from designating the system, the act served several other purposes, including restoring $5.4 billion in funding to state highway departments, giving Congress the power to prioritize highway system projects, repealing all federal speed limit controls, and prohibits the federal government from requiring states to use federal-aid highway funds to convert existing signs or purchase new signs with metric units.
The act also created a State Infrastructure Bank pilot program. Ten states were chosen in 1996 for this new method of road financing. These banks would lend money like regular banks, with funding coming from the federal government or the private sector, and they would be repaid through such means as highway tolls or taxes. In 1997, 28 more states asked to be part of the program. Ohio was the first state to use a state infrastructure bank to start building a road. An advantage of this method was completing projects faster; state laws and the lack of appropriate projects were potential problems.
Overview
According to the Federal Highway Administration, the National Highway System includes roads important to the United States' economy, defense, and mobility, from one or more of the following road networks :- Interstate Highway System: The entire Interstate Highway System is included in the NHS, but retains its separate identity within the NHS.
- Other Principal Arterials: Highways in rural and urban areas which provide access between an arterial and a major port, airport, public transportation facility, or other intermodal transportation facility.
- Strategic Highway Network : The entire network of highways which are important to the United States’ strategic defense policy and which provide defense access, continuity, and emergency capabilities for defense purposes.
- Major Strategic Highway Network Connectors: Highways which provide access between major military installations and routes which are part of STRAHNET.
- Intermodal Connectors: Routes which provide access between major intermodal facilities and the other four subsystems making up the NHS.