On Jun 10, 2010, at 5:45 PM, Richard Weait <rich...@weait.com> wrote:

> On Thu, Jun 10, 2010 at 4:10 PM, Nathan Edgars II  
> <nerou...@gmail.com> wrote:
>> highway=motorway_junction with ref=[number] is used whenever there's
>> an exit/junction number, whether or not it's actually on a motorway.
>> But there are some numbered "exits" that are right at traffic  
>> signals,
>> which should be tagged highway=traffic_signals. Examples include
>> http://alpsroads.net/roads/nj/gsp/n10.jpg in south New Jersey (this
>> one has a small separated "ramp" but another one doesn't),
>> http://commons.wikimedia.org/wiki/File:NY_9A_north_exit_5.jpg in New
>> York City, and http://gailmommers.50megs.com/pictmission/ny-17-exit-98.htm
>> in upstate New York. How should these be tagged?
>> highway=motorway_junction;traffic_signals?
>
> Well it can't be highway=motorway_junction because motorways don't
> have level crossings, right?
>
> This image illustrates your question perfectly.
> http://alpsroads.net/roads/nj/gsp/n10.jpg  Thank you for including it.
>
> If this were a motorway_junction (it isn't) the exit number would be
> in the ref tag on the exit node, so go with that.
>
> I would tag the ways as usual, highway="secondary" or whatever is
> appropriate here.
>
> highway="traffic_signals"
> ref="10B"
>
> If that is indeed a flare for the right turn to 657 Eastbound, I might
> mark the first node of the flare with the ref="10B"

The "ref" doesn't mean anything without an associated tag though.  
"motorway_junction" is the accepted way to show a numbered exit, even  
if it isn't attached to a motorway.

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