[Talk-us] US Trunk road tagging

[Paul Johnson]

On Thu, May 6, 2021 at 12:43 PM Kevin Kenny <kevin.b.kenny at gmail.com> wrote:
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> On Thu, May 6, 2021, 13:30 Roff, Thomas (FHWA) via Talk-us <talk-us at openstreetmap.org> wrote:
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>> On the point of definition of an Expressway. We usually refer the Highway Capacity Manual for their definition. However, I am not sure if there is a legal definition in the US.
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> There may be in some states. Around me, 'expressway' and 'freeway' are pretty much synonymous, so I actually have no idea what 'expressway=yes' might mean.

I feel like Oregon/Washington have the strongest grasp on this, being
any two lane grade-seperated controlled access road (so, single
carriageway freeway type situation) or any dual carriageway high speed
freeway like road with intersections (including at terminus).