On Sun, 2009-04-12 at 04:39 -0500, Joseph Jon Booker wrote:
> On Sun, 12 Apr 2009 01:54:12 -0500
> Ian Dees <ian.d...@gmail.com> wrote:
> 
> > On Sun, Apr 12, 2009 at 1:38 AM, Nicholas Vetrovec
> > <nickvet...@yahoo.com>wrote:
> > 
> > >
> > > Posted on the US Page to help coordinate US Interstate relations.
> > > http://wiki.openstreetmap.org/wiki/Interstate_Highways_Relations
> > >
> > 
> > Since interstate highways are usually two separate one-way ways,
> > which way (or both?) do we add to the relation?
> 
> US routes can also become two separate one-ways when becoming
> express ways or trunk ways, while being a regular two-way street the
> rest of the way, so it probably doesn't make sense to have separate
> directions. Perhaps a proposal can be made for having
> role=North|South|East|West for type=route relations?

Perhaps direction=North|South|West|East, or cardinal=North|South|West|
East?

> Also, wouldn't it make sense to have the way a route is displayed as
> the name? For example, network=I,ref=90 would have name="I 90", and
> network=US:IL, ref=58 would have name="IL 58" in the relations.

I prefer "_" to ":" or ";" in this case as "_" can be used in a filename
without escaping.  

network=us_i_2 # Interstate (2 digit) us_i_3 for 3 digit
network=us_us_2 # US Route us_us_3 for 3 digit
network=us_ny # NY State Route
network=us_ny_county # 

and so on.  The network value plugs directly into the shield symbolizer
in mapnik for an easy renderer fix.  The shield images can be
network_us_i_3.png to keep them all in order in the directory.  

I've got a demonstration of highway shields working here:
http://weait.com/maps/  Please be gentle on this unsuspecting box and
narrow pipe.

To make shields work for everybody, I'd like to see

- "network=" supported in highway ways, relations and super-relations
- further graphics work to refine the highway shield symbols for size /
centering 
- wide adoption of the newly supported network tag.
- repair of the many broken ref= tags that read I-190 or even Interstate
190, etc.  

Blog entry with more details here.
http://weait.com/content/badges-badges

Best regards,
Richard


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