On Sun, 23 Aug 2009 17:48:58 +0100, Craig Wallace wrote: > On 23/08/2009 17:15, David Paleino wrote: > > On Sun, 23 Aug 2009 16:58:36 +0100, Craig Wallace wrote: > > > >> Why not place the stop sign node where the stop line / stop sign is > >> physically located? > >> Nothing arbitrary about that. You can measure the distance from the stop > >> line to the centre of the junction of you want. > > > > You'd still need some kind of relationship for that to be effective (i.e. to > > relate the highway=stop to the junction node) -- and AFAICT typical consumer > > GPS units aren't that precise. > > Why is it necessary to relate the highway=stop to the junction node? > Isn't it obvious that if a highway=stop is within a few metres of a > junction, then its part of the same junction. It shouldn't affect > routing software etc anyway.
Well, one thing I could think of is "short" roads ~10m long or so. I've seen quite of these, but "fortunately" none of them had a stop sign -- with the current GPS accuracy (3m for my unit, at least nominally) it would've been a problem taking a waypoint for a stop sign placed there. Am I totally wrong/biased? :-) (just out of curiosity: I've also seen roads 4-5m long) > And it doesn't have to be very precise. Its easy to estimate the width > of a road, and how far away from the road edge the stop line is. If we were to use highway=stop, it should be *on* the way (part of it), not on one side. > (and on a related note, is there any of mapping advanced stop lines (for > cyclists etc)?) I believe not, but we could easily adapt highway=stop for this. Still, if we deprecate it, we should think at something else :-) Kindly, David -- . ''`. Debian maintainer | http://wiki.debian.org/DavidPaleino : :' : Linuxer #334216 --|-- http://www.hanskalabs.net/ `. `'` GPG: 1392B174 ----|---- http://snipr.com/qa_page `- 2BAB C625 4E66 E7B8 450A C3E1 E6AA 9017 1392 B174
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