[OSM-talk] definition of the main highway-tag

[Eugene Alvin Villar]

On Wed, Aug 5, 2009 at 7:19 AM, Richard Mann <
richard.mann.westoxford at googlemail.com> wrote:

> I'd agree that it should be "importance" for
> trunk/primary/secondary/tertiary. The stuff about not using trunk for
> single-track roads just doesn't match what people are actually doing
> (judging by some of the roads in the Western Highlands). The physical tends
> to align to the importance, but what we actually tend to tag is the
> importance (usually based on the type of signs).
>
> However, motorway is physical, and many of the other highway tags are
> defined in physical terms, or in terms of access rights. So the initial
> sentence needs to allow for more variety than just "importance".
>
+1

In the Philippines, we tend to tag the highways via importance and
highway=motorway as a physical variant of highway=trunk.

Relying on administrative classifications (National, provincial, municipal
roads) will not work at all.



> On the residential/unclassified question, I do tend to use
> highway=unclassified for non-residential urban roads. I'm not entirely
> comfortable using the same tag for industrial estate roads and narrow
> country lanes (and it probably makes matters harder for renderers than
> necessary). Perhaps the solution lies in qualifying unclassified roads with
> an abutters tag when it's used in towns.
>

We generally use highway=unclassified for all other non-track roads that are
not residential. So residential and unclassified are generally equal but
residential are for strictly residential areas so highway=residential roads
would have lesser "importance" with regard to routing. This still conforms
to the use of highway=* as an importance indicator.


Eugene
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk/attachments/20090805/cb467e5f/attachment.html>