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| | Michigan Highways: In Depth: National Highway System |
 | | "Provide an interconnected system of principal arterial routes which will serve major population centers, international border crossings, ports, airports, public transportation facilities, and other intermodal transportation facilities and other major travel destinations; meet national defense requirements; and serve interstate and interregional travel." |
 | | The National Highway System (NHS) is, as the name implies, a nationwide system of primary highways and, although designated on a national basis, maintained by each of the states. |
 | | The NHS was created as a part of the National Highway System Designation Act of 1995, signed into law on November 28, 1995 and expanded a few years later as a part of the Transportation Equity Act of the 21st Century (TEA-21), signed on June 9, 1998. |
| www.michiganhighways.org /indepth/nhs.html (274 words) |
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