Re: [OSM-talk] Roundabouts and routing

2011-09-09 Thread Thomas Davie
On 8 Sep 2011, at 22:39, SomeoneElse wrote: Thomas Davie wrote: Would it be possible to include a link to an example roundabout in OSM? Within the UK there seems to be a variety of tagging approaches, everything from not tagging flares to tagging individual roundabout lanes. I'm

Re: [OSM-talk] Roundabouts and routing

2011-09-09 Thread David Earl
On Friday, 9 September 2011, Nathan Edgars II nerou...@gmail.com wrote: On 9/8/2011 3:45 PM, David Earl wrote: The problem is exacerbated because many of these were done as a single one way which comes off the roundabout and then turns almost 180 deg. and rejoins roundabout. Example:

Re: [OSM-talk] Roundabouts and routing

2011-09-09 Thread 4x4falcon
On 09/09/11 15:45, David Earl wrote: On Friday, 9 September 2011, Nathan Edgars II nerou...@gmail.com mailto:nerou...@gmail.com wrote: On 9/8/2011 3:45 PM, David Earl wrote: The problem is exacerbated because many of these were done as a single one way which comes off the roundabout

Re: [OSM-talk] Roundabouts and routing

2011-09-09 Thread Jonathan Waller
With regards to solution 1) I have never noticed a sliproad onto a roundabout tagged as junction=roundabout (UK East Midlands). Where is this common practice? If this is not too widely used then it might be worth retagging, but I don't know how easy it would be to automatically detect these.

Re: [OSM-talk] Roundabouts and routing

2011-09-09 Thread Lester Caine
Jonathan Waller wrote: With regards to solution 1) I have never noticed a sliproad onto a roundabout tagged as junction=roundabout (UK East Midlands). Where is this common practice? If this is not too widely used then it might be worth retagging, but I don't know how easy it would be to

Re: [OSM-talk] Roundabouts and routing

2011-09-09 Thread Graham Stewart (GrahamS)
David Earl wrote: In areas where it has been important for me (where I've been producing a high quality paper map), I have tagged these as junction=approach. The reason I needed such a tag was to avoid one way arrows cluttering up the map on those little Y-shaped approaches to

Re: [OSM-talk] Roundabouts and routing

2011-09-09 Thread David Earl
On 09/09/2011 11:00, Graham Stewart (GrahamS) wrote: David Earl wrote: In areas where it has been important for me (where I've been producing a high quality paper map), I have tagged these as junction=approach. The reason I needed such a tag was to avoid one way arrows cluttering up the map

Re: [OSM-talk] Roundabouts and routing

2011-09-09 Thread David Earl
On 09/09/2011 12:09, David Earl wrote: algorithms if they could them as an exit when they aren't. If you didn't err, count them as... ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk

Re: [OSM-talk] Roundabouts and routing

2011-09-09 Thread Martin Koppenhoefer
2011/9/9 Graham Stewart (GrahamS) gra...@dalmuti.net: David Earl wrote: The reason I needed such a tag was to avoid one way arrows cluttering up the map on those little Y-shaped approaches to roundabouts This seems like a bad approach to me. (pardon the pun) If the road flares like that then

Re: [OSM-talk] Roundabouts and routing

2011-09-09 Thread Charlie Ferrero
On 08/09/2011 23:14, Jonathan Waller wrote: With regards to solution 1) I have never noticed a sliproad onto a roundabout tagged as junction=roundabout (UK East Midlands). Where is this common practice? If this is not too widely used then it might be worth retagging, but I don't know how

[OSM-talk] Roundabouts and routing

2011-09-08 Thread Thomas Davie
Hi, Today I experimented with using OSM maps on my Garmin sat-nav. The one thing that I noticed was that roundabouts do not work well. The problem seems to be the slip roads entering the roundabout. The sat-nav recognises them as a roundabout in themself, and because of that gives some

Re: [OSM-talk] Roundabouts and routing

2011-09-08 Thread Chris Hill
On 08/09/11 19:48, Thomas Davie wrote: Hi, Today I experimented with using OSM maps on my Garmin sat-nav. The one thing that I noticed was that roundabouts do not work well. The problem seems to be the slip roads entering the roundabout. The sat-nav recognises them as a roundabout in

Re: [OSM-talk] Roundabouts and routing

2011-09-08 Thread Tom Hughes
On 08/09/11 19:48, Thomas Davie wrote: 1) Don't tag sliproads onto roundabouts as junction=roundabout, instead use some other tagging scheme. Not greatly desirable because it involves a *whole* lot of retagging. Well who on earth is doing that? and why? I've certainly never tagged roads

Re: [OSM-talk] Roundabouts and routing

2011-09-08 Thread Steve Coast
+1 Steve From: Tom Hughes Sent: 9/8/2011 1:27 PM To: Thomas Davie Cc: OSM Talk Subject: Re: [OSM-talk] Roundabouts and routing On 08/09/11 19:48, Thomas Davie wrote: 1) Don't tag sliproads onto roundabouts as junction=roundabout, instead use some other tagging scheme. Not greatly desirable

Re: [OSM-talk] Roundabouts and routing

2011-09-08 Thread David Earl
On 08/09/2011 20:27, Tom Hughes wrote: On 08/09/11 19:48, Thomas Davie wrote: 1) Don't tag sliproads onto roundabouts as junction=roundabout, instead use some other tagging scheme. Not greatly desirable because it involves a *whole* lot of retagging. Well who on earth is doing that? and why?

Re: [OSM-talk] Roundabouts and routing

2011-09-08 Thread SomeoneElse
Thomas Davie wrote: Proposed solutions (all of which are horrible): 1) Don't tag sliproads onto roundabouts as junction=roundabout, instead use some other tagging scheme. Not greatly desirable because it involves a *whole* lot of retagging. 2) Ask garmin to fix it (doesn't sound likely). 3)

Re: [OSM-talk] Roundabouts and routing

2011-09-08 Thread Nathan Edgars II
On 9/8/2011 3:45 PM, David Earl wrote: The problem is exacerbated because many of these were done as a single one way which comes off the roundabout and then turns almost 180 deg. and rejoins roundabout. Example: http://www.openstreetmap.org/browse/way/4565106 This is certainly no good, since