[Talk-us] highway=trunk for NHS routes?

Volker Schmidt voschix at gmail.com
Sat Dec 31 09:21:32 UTC 2016

As a general rule, should highway=trunk be used for routes on the National
> Highway System? Considering that those routes are generally more backbone
> routes, more important than a lot of primary routes, it makes sense that
> they should be tagged with trunk.
> --Roadsguy

The answer is definitely NO.
You can find detailed PDF maps of all NHS Routes, state-by-state at a web
page of the Federal Highway Administration [1]. On these maps you will find
plenty of NHS roads that are definitively not trunk roads.
Just two examples in Arizona: [2] [3]

[1] http://www.fhwa.dot.gov/planning/national_highway_system/nhs_maps/
[2] https://www.mapillary.com/map/im/C7jPgAHJbdBBggMeNV6UvA
[3] https://www.mapillary.com/map/im/1U4eqD64lQaVJQCLWMTbrg
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