[Talk-us] Trunk

Evin Fairchild evindfair at gmail.com
Sat Oct 14 20:30:50 UTC 2017

As I said previously, and I think it bears repeating, it's very easy to
tell if a trunk is divided or undivided when you look at US or Canada at
zoom 5 on the standard layer. Divided trunks show up as a thicker line than
undivided trunks.

Also worth noting that Google maps doesn't display divided highways any
different than undivided highways. They all are colored yellow.

-Evin (compdude)

On Oct 14, 2017 1:20 PM, "Bradley White" <theangrytomato at gmail.com> wrote:

> On Sat, Oct 14, 2017 at 12:53 PM, Nathan Mills <nathan at nwacg.net> wrote:
> > Road maps in the US have long differentiated between freeway/expressway
> and
> > has had both of those clearly different than US and state highways we'd
> be
> > tagging as primary. Map users expect to see expressways shown
> differently.
> Could you show me an example of a US road atlas that explicitly
> demarcates expressways? I have legitimately tried to find one but have
> not been able to. Most US maps I've seen show freeways & toll roads
> explicitly, but not expressways. Some maps might use a different
> casing style to denote a divided highway, but the underlying color of
> the line still represents the importance of the road. Which is the
> point I'm trying to get at, that a highway being divided or not is
> orthogonal to its importance.
> > It's less work on so many levels also. Creating a new tag requires
> > significant work on the render side, but doesn't really gain us much over
> > just using primary for roads that some think are important enough to be a
> > trunk but are undivided. The wiki definition for primary is already "the
> > most important non-motorway route between two cities" (essentially, and
> > ignoring the variation in use between rural and urban areas)
> This is incorrect. 'Tag:highway=primary' gives "A highway linking
> large towns". 'Tag:highway=trunk' gives "Important roads that are not
> motorways", and explicitly lists in the US tagging application that "a
> major intercity highway" is a correct use of the trunk tag in the US.
> 'Highway:international_equivalence' as well as 'Key:highway' give the
> same set of definitions. Where are you seeing that primary is "the
> most important non-motorway route between two cities"?
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