Key:NHS
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Description |
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Specifies, if the road is part of a National Highway System. ![]() |
Group: highways |
Used on these elements |
Status: imported |
Tools for this tag |
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Several countries have a defined National Highway System network that is independent of numbered routes. The tag is currently used in the United States and Canada.
Values
NHS=yes
- normal value to indicate that the road is on the NHS, and is not an Interstate or STRAHNET route in the U.S.
United States subsets
NHS=STRAHNET
- Describes non-interstate STRAHNET routes, representing the most important non-Interstate NHS corridors.NHS=STRAHNET_(connector)
- A connector road from a STRAHNET route to a military installation or port.NHS=Interstate
- Used on Interstate highways.NHS=Intermodal
- Intermodal connectors.NHS=Intermodal;STRAHNET_(connector)
- Technically a two-value key but considered its own NHS subset.NHS=MAP-21
- A MAP-21 Principal Arterial.