[Talk-us] MO Stare Road Classifications.

Nathan Mills nathan at nwacg.net
Mon Mar 6 18:01:01 UTC 2017

Typically state DOT functional classification freeway and expressway both imply limited, but not necessarily fully controlled, access, so trunk is a good first approximation. However, the DOT classification diverges enough from OSM tagging standards/consensus (such as it is in the US, anyway) that using it as anything more than a basic reference where decent satellite imagery and ground truth observations are unavailable is a bad idea.

It's better than nothing when looking at unreviewed stuff from the TIGER import, for sure, but that's about it.


On March 6, 2017 11:13:28 AM EST, Paul Johnson <baloo at ursamundi.org> wrote:
>On Mar 5, 2017 13:35, "OSM Volunteer stevea"
><steveaOSM at softworkers.com>
>I would say "almost, but not quite."  Interstate and Freeway, both
>highway=motorway.  Expressway, highway=trunk.
>If it's semi limited access (few to no driveways, a mix of at grade and
>grade separated junctions), I would call that a trunk.  Just a highway
>isn't limited access? Not a motorway or trunk.
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