Re: [Talk-in] Tagging roads with median

[PlaneMad]

On Mon, Mar 29, 2010 at 5:30 PM, Kiran Jonnalagadda j...@pobox.com wrote:


 Praveen, I think we should tag as per street conventions and get search
 fixed to work for it.

 I noticed another odd bit: many streets with dividers are in the db as two
 parallel one-way roads, resulting in oddities such as this one:
 http://osm.org/go/yy4Z9FN84--

 I found this earlier discussion:
 http://lists.openstreetmap.org/pipermail/newbies/2009-August/003447.html

 What does the list think as the appropriate way to tag divided roads?
 Parallel ways work for traffic routing algorithms, but are so much more
 work, and don't offer a clean solution for gaps in the divider.


I have been mapping it as two parallel oneways almost mainly for the purpose
of routing. I have also found that it makes it much easier to follow the
road pattern especially at complicated junctions/interchanges (see
hebbalhttp://www.openstreetmap.org/?lat=13.04316lon=77.58997zoom=17layers=B000FTFor
hudson
circlehttp://www.openstreetmap.org/?lat=12.96601lon=77.58582zoom=17layers=B000FTF).
It doesnt make sense to do this for each and every road with a median
though, but only for the arterial thoroughfares.


-- 
http://j.mp/ArunGanesh
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Re: [Talk-in] Tagging roads with median

[Kiran Jonnalagadda]

On Thu, Apr 1, 2010 at 12:23 PM, PlaneMad theplane...@gmail.com wrote:


 I have been mapping it as two parallel oneways almost mainly for the
 purpose of routing. I have also found that it makes it much easier to follow
 the road pattern especially at complicated junctions/interchanges (see
 hebbalhttp://www.openstreetmap.org/?lat=13.04316lon=77.58997zoom=17layers=B000FTFor
  hudson
 circlehttp://www.openstreetmap.org/?lat=12.96601lon=77.58582zoom=17layers=B000FTF).
 It doesnt make sense to do this for each and every road with a median
 though, but only for the arterial thoroughfares.


That makes sense, but we need a way to deal with quirks like the double
traffic lights.

Also, would the relation tags be a useful way to do this?
http://wiki.openstreetmap.org/wiki/Relation:restriction
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