On Sun, Aug 30, 2009 at 9:01 AM, John Smith <deltafoxtrot...@gmail.com>wrote:
> 2009/8/30 Anthony <o...@inbox.org>: > > It was you who suggested that a stop sign is applicable to a lane not a > > way. I'd say, like Tobias, that it is applicable to a way and a > direction. > > No, you stop at a stop sign which is a point on a way, direction only > matters if you can't tag this point on individual lanes. I could just as well say that lane only matters if you can't tag this point in individual directions. Of course, if you want to add up the instances of one-lane, bi-directional, roads with stop signs, and the instances of undivided roads with stop-signs which only apply to some lanes going in the same direction, I'm sure there are many many more of the former. > > exceptions I can think of this is especially appropriate because at the > spot > > where the stop sign applies to one lane and not the others the road is > > divided by a painted median and changing lanes is not allowed. There are > > probably a small number of exceptions where this is not true, but > splitting > > the way in those cases is harmless. > > I think you are confusing what I said, assuming you have a way which > is a lane of through traffic that runs in each direction, the stop > sign only applies to one of the 2 lanes, not the entire way. It also applies to one of the 2 directions. There aren't supposed to be people going in the wrong direction in the wrong lane, so this is a degenerate case. > I really don't see how it's less complicated to use the physical rather > than > > the logical. It's actually much more complicated when you get into the > > micro areas and you start adding straight lines through a large > intersection > > instead of curved left turns. > > Because most ways are a simple case of 2 symmetrical lanes, one in > each direction, so simplier because it's half the work to make 2 lanes > by making a single way. And in all the common cases, that's exactly what you do. > Mapping a way becomes more easier than lanes > if there is 3 or 4 or 10 lanes. > And in 99% of cases, if there is no restriction between changing lanes, that's what you do. What would you do in this case: http://maps.google.com/maps?f=q&source=s_q&hl=en&sll=27.965755,-82.546307&sspn=0.000776,0.001194&ie=UTF8&ll=27.966151,-82.546337&spn=0.000776,0.001194&t=h&z=20 We have a six-lane road with all the lanes going in the same direction, separated into groups of three lanes by nothing but paint. There is a traffic light for the left three lanes, and no traffic light for the right three lanes. As you see, whoever provided the map for Google split the way. Would you split the way? Is there a physical separation? Does paint count?
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