[Talk-us] Announcing progress: Minnesota Highway classification project publishes first guidance

[Evin Fairchild]

On Thu, Jan 27, 2022, 9:34 AM Paul Johnson <baloo at ursamundi.org> wrote:

>
> Motorway islands?  You mean a grade-seperated exit on an expressway?  I
> can't see a compelling reason to not just tag that the same as an
> expressway (since junctions can be a mix grade separated or at grade) any
> more than it makes sense to tag motorway all the way to an at-grade
> junction (which turns motorway into a trolltag).
>

As for motorway islands, I don't see anything wrong with these as long as
there's not just one interchange sandwiched between at grade interesctions.
I think everybody can agree that it's bad tagging to tag a road as motorway
when there's only one interchange. I change these back to trunk whenever I
come across them without hesitation.

However, there are many valid cases where a road that is an expressway
upgrades to motorway for just 2-3 (or more) consecutive interchanges, for
example an expressway in a rural area that upgrades to freeway when it
bypasses a town and has at least two interchanges providing access to that
town, and this should be tagged as motorway. I've never seen a problem with
this.

The only thing that should be clarified on the MN highway classification
page is that we shouldn't have sections of motorway with just one
interchange.

Also, why is it bad to have a motorway end at an at grade intersection? How
does this turn motorway into a "trolltag" (lol)? I've explained my position
on this many times and I'd like to hear yours.

>
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