Re: [Talk-us] stop signs
SteveC writes: Therefor I propose stop signs go on the intersection and save a lot of hassle with the tag highway=stop and in addition, has the road it applies to stop=all is explicit and implied on any node without an explicit 'all' tag. If it's just one street at the crossing of Bonkers Road and Moronic Parkway then you can do stop=Bonkers Road to indicate that it's a two way stop on just that road of the intersection. Thoughts? That doesn't work if Bonkers Road only has a stop sign on one side. I know that some people don't like it, but I prefer the cardinal directions specification: http://wiki.openstreetmap.org/wiki/Key:stop It's unambiguous, and if somebody comes up with a better idea, can be machine parsed and translated into the new scheme. -- --my blog is athttp://blog.russnelson.com Crynwr supports open source software 521 Pleasant Valley Rd. | +1 315-600-8815 Potsdam, NY 13676-3213 | Sheepdog ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] stop signs
On 10/26/2010 09:17 AM, Nathan Edgars II wrote: On Tue, Oct 26, 2010 at 8:36 AM, Adam Schreiber sadam-pwfglq4rzxkvc3sceru...@public.gmane.org wrote: I think that 4-way and 3-way stops can be handled unambiguously by highway=stop. More complex stops should probably be modeled with turn restrictions. type=restriction restriction=stop roles=from,to,via But a stop sign isn't a restriction; it has the main effect of slowing average speed. If our router is so precise that the seconds added by a stop sign count, it can easily calculate the nearest intersection to each stop sign node to figure out the likely direction. But for practical purposes simply halving the number of stop sign nodes passed should be enough. What's wrong with something like highway:forward=stop or highway:backward=stop for the node where one must stop? If the stop sign's location next to the road is explicitly tagged, about the only feasible way to define it's direction is with a relation. signature.asc Description: OpenPGP digital signature ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] stop signs
Therefor I propose stop signs go on the intersection and save a lot of hassle with the tag highway=stop I think your proposal can work, but you need to show how e.g. to mark 2 out of 5 roads at an intersection. Also, roads are directional even if 2way so we could allow stop on nodes on ways to be stop=forward and stop=reverse, but I agree this starts to feel too hard. Sort of related, I have been thinking that code to gather typical speeds and now stop signs from traces would be a great addition. pgpe2wOCKSfqn.pgp Description: PGP signature ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] stop signs
On Tue, Oct 26, 2010 at 8:19 AM, Greg Troxel g...@ir.bbn.com wrote: Therefor I propose stop signs go on the intersection and save a lot of hassle with the tag highway=stop I think your proposal can work, but you need to show how e.g. to mark 2 out of 5 roads at an intersection. I think that 4-way and 3-way stops can be handled unambiguously by highway=stop. More complex stops should probably be modeled with turn restrictions. type=restriction restriction=stop roles=from,to,via A 4-way intersection where 2 opposites stop, A B, and one continues, C/or D, through, E, can be modeled with a single relation. Eg: from:A from:B to:C to:D via:E 3-ways with a single stop can be done similarly. Cheers, Adam ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] stop signs
On Tue, Oct 26, 2010 at 8:36 AM, Adam Schreiber sa...@clemson.edu wrote: I think that 4-way and 3-way stops can be handled unambiguously by highway=stop. More complex stops should probably be modeled with turn restrictions. type=restriction restriction=stop roles=from,to,via But a stop sign isn't a restriction; it has the main effect of slowing average speed. If our router is so precise that the seconds added by a stop sign count, it can easily calculate the nearest intersection to each stop sign node to figure out the likely direction. But for practical purposes simply halving the number of stop sign nodes passed should be enough. What's wrong with something like highway:forward=stop or highway:backward=stop for the node where one must stop? ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] stop signs
On Tue, Oct 26, 2010 at 10:17 AM, Nathan Edgars II nerou...@gmail.com wrote: What's wrong with something like highway:forward=stop or highway:backward=stop for the node where one must stop? How does that capture intersections where one of the roads entering and exiting the junction node doesn't stop? Are you suggesting that highway=stop be added to the node before the junction? Cheers, Adam ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
