Riverside in Tulsa is fairly clearly a primary for most of its length. It isn't
part of a larger trunk route nor is it an expressway.
Personally, I think of trunk as more like motorway than like the other highway
values. Motorway is clearly used only for controlled access freeways (excepting
short sections in extremely rural areas where an Interstate doesn't quite meet
the standard). I think of trunk as the same thing, but for expressways. For
routes that are not primarily expressway, I think primary is a better
classification. That assumes it otherwise meets the standard for primary.
I can't think of any situations off the top of my head where
unclassified/residential/tertiary/secondary/primary don't provide enough
differentiation between sub-expressway roads. Using trunk to mean "more primary
than primary" seems to reduce the usefulness of the map to simple data
consumers that don't/can't take into account lanes and similar tags. Using
trunk and motorway to mean "limited access expressway" and "controlled access
freeway," respectively, seems to express the US road network better than
conflating primary and trunk as NE2's edits often did. (And still are, in many
places)
-Nathan
On October 8, 2017 2:29:26 PM EDT, Paul Johnson <ba...@ursamundi.org> wrote:
>On Sun, Oct 8, 2017 at 1:25 AM, Shawn K. Quinn <skqu...@rushpost.com>
>wrote:
>
>> On 10/05/2017 05:30 PM, Martijn van Exel wrote:
>> > Question for you all:
>> >
>> > What make Michigan state routes 5 and 10[1] trunks rather than
>> primaries?
>> >
>> > To my mind these are highway=primary mainly because of at-grade
>> > intersections.. I am still confused about what makes a trunk road
>in the
>> > US. To my mind it's roads with no at-grade intersections but not
>built
>> > to interstate standards / not having an interstate designation...
>I'm
>> > not looking to open up a can of worms but I would really like to
>> understand.
>>
>> On a related note, I recently downgraded Allen Parkway in Houston
>from
>> trunk to primary, based on the somewhat recent reconfiguration,
>adding
>> traffic signals and lowering the speed limit (which I removed without
>> adding a replacement, knowing only that it's no longer 40 mph but I
>> forgot if they made it 35 mph or 30 mph). It's possible the western
>part
>> (closer to where it changes names to Kirby Drive) may still
>technically
>> qualify as trunk, but it is kind of an edge case even then.
>>
>> Thoughts?
>>
>
>Looks fair to me, I could see the argument going either direction on
>that
>one, falling into a similar situation to Tulsa's Riverside Parkway
>(which
>could a small trunk being a cancelled freeway or a large primary; I'm
>legitimately on the fence on that one myself).
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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