[OSM-talk] [RFC] Deprecating the use of Tag:highway=stop in favour of Key:stop

[Joseph Booker]

On Tue, 25 Aug 2009 14:23:46 +0000 (GMT)
John Smith <delta_foxtrot at yahoo.com> wrote:
> --- On Tue, 25/8/09, Joseph Booker <joe at neoturbine.net> wrote:
> 
> > Almost every intersection I've seen has the stop sign *at*
> > the
> > intersection.
> 
> The intersection is the middle of the two or more ways intersecting,
> the stop sign is always before the intersection, not at the
> intersection.

I always assumed the intersection *was* the two or more ways
intersecting, but this is being pedantic.

> > Here, State law holds that you stop directly *at* a stop
> > sign (usually
> 
> How many stop signs are in the middle of intersections?

I gave an example below.

> > Not trying to twist the proposals into something they don't
> > cover, just
> > trying to point out how absurd it is to map the stop signs
> > that define
> > the start of the intersections.
> 
> However in reality they do mark the start of the intersection, not
> the middle nor the end but the start.
> > Furthermore, how would you tag lights like 
> > http://farm3.static.flickr.com/2041/2234314943_bdcd95d800.jpg?v=0
> > ?
> > Flashing red lights are the same (legally and for routers)
> > as stop
> > signs, and I have seen them in the middle of the road (like
> > some traffic
> > signals are).
> 
> The same way traffic lights are tagged already.

It's not a normal traffic light. It is legally and practically treated
the same as a stop sign. My state describes it as "This sign is used at
intersections when a stop sign alone is hard to see or where additional
emphasis on the stop sign is needed." I would tag it as a stop sign, I
only mention it as a legitimate case of a stop being in the middle of
the intersection.

> > intersection. The biggest issue for me is that it is
> > simpler, not only
> > for routers but for editors.
> 
> How can mapping out a node not be simple? It is a lot simpler than
> mapping out a relation or splitting a way etc etc etc and the only
> thing that benefits from stop sign information is routing software,
> editors don't, mappers don't so making it more complicated than it
> needs to be everyone except routing software coders.

True, I agree about the simplicity of just using nodes, that
email was more directed towards
http://wiki.openstreetmap.org/wiki/Key:stop -like proposals with tags
like stop=at_first_and_last_node.

-- 
Joseph Booker
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