On Sun, Oct 8, 2017 at 1:25 AM, Shawn K. Quinn <[email protected]> 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).
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