[Talk-us] Trunk

Paul Johnson baloo at ursamundi.org
Sat Oct 14 23:25:04 UTC 2017

On Sat, Oct 14, 2017 at 6:08 PM, Evin Fairchild <evindfair at gmail.com> wrote:

> On Oct 14, 2017 2:04 PM, "Wolfgang Zenker" <wolfgang at lyxys.ka.sub.org>
> wrote:
> Hi,
> it looks to me that this discussion is going in circles, not forward
> at the moment. IMHO it does not make a lot of sense to argue what might
> be the true meaning of "trunk". Instead, we should concentrate on what
> it should mean, document this meaning if we can agree on one and don't
> worry to much about what other maps or different parts of the world
> think a "trunk" is.
> Yeah, the whole reason why this discussion hasn't resulted in a consensus
> for 7+ years is because people have dug in their heels so much and said
> "trunk roads can only be divided highways, no its, ands, or buts." I
> support what is written on the wiki that says that it is the second most
> important road after motorway. I haven't seen a single compelling reason to
> believe that trunk should only apply to divided highways. You can still
> tell whether a trunk is divided at low zooms based on how thick the line is.

I'm OK with single carriageway trunks, if they're controlled access, like,
say, the Chickasaw Turnpike, and similarly constructed roads.  The single
carriageway parts of US 395 or US 97 in eastern Oregon, US 400 in Kansas or
US 75 in Oklahoma, though?  They're all solid primaries.

> The definition of "trunk" that I have used so far: A highway that is of
> the same network importance as a primary, but specifically constructed
> for fast traffic.
> I like this definition. There are quite a few two lane roads that are
> built for speed, but may still have some at grade intersections.

There's still a fundamental difference between a controlled or limited
access route that isn't a freeway, and a two lane road without hard
shoulders that has a 70 mph speed limit.
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