<div dir="ltr"><div dir="ltr"><div dir="ltr">On Thu, 14 Mar 2019 at 03:44, Warin <<a href="mailto:61sundowner@gmail.com">61sundowner@gmail.com</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF">
<div class="gmail-m_-5835193148030557626moz-cite-prefix">On 14/03/19 01:02, Paul Allen wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr"><br>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">One problem that I don't see a
solution for in PTV1, PTV2 or "we don't tag it PTV3" is a
stop</div>
<div class="gmail_quote">that is ignored on the first pass but
comes into play on the second pass. The bus starts at</div>
<div class="gmail_quote">the bus station A, passes through
nodes B, C and D and turns right at D to E. On this pass</div>
<div class="gmail_quote">through C it ignores the bus stop
there. After it's gone through the alphabet back to A, it</div>
<div class="gmail_quote">again goes through B, C and D but
this time turns left to alpha, beta, etc. On this pass it</div>
<div class="gmail_quote">does stop at C. Piling all the stops
into the relation may lead the routers to conclude that</div>
<div class="gmail_quote">you can wait at the stop C to get
directly to E when you can't (but you can get on at C to
take</div>
<div class="gmail_quote">a detour through the greek alphabet
and eventually get to E because it's a circular).</div>
</div>
</div>
</blockquote>
IN PTV2 you list the stops in order .. so they would be listed as;<br>
A<br>
B<br>
D<br>
E<br>
etc<br>
A<br>
B<br>
C<br>
D <br>
E <br>
etc <br>
<br>
So it can be done in PTV2. <br></div></blockquote><div><br></div><div>Yes, it can be done. I said as much myself. But it is hard to decipher. There is nothing that</div><div>explicitly says that the bus does not stop at C the first time the bus passes it but does stop</div><div> the second time. If you painfully trace out the ENTIRE route, correlating stops and ways,</div><div>you can reach the correct conclusion.</div><div><br></div><div>Now consider somebody using the query tool for the bus stop at C. Somebody who isn't a</div><div>mapper, just a user. Here's the route:</div><div> <a href="https://www.openstreetmap.org/relation/8592409#map=14/52.0860/-4.6644">https://www.openstreetmap.org/relation/8592409#map=14/52.0860/-4.6644</a></div><div>and here's the stop: <a href="https://www.openstreetmap.org/node/5706768172">https://www.openstreetmap.org/node/5706768172</a> Note that I haven't yet</div><div>included the stop on that route (although I have included it in an incomplete variant route), but</div><div> if I had, and included it in the right order, how easy would it be for you to figure out what is going on?</div><div>From casual inspection, it's not easy.</div><div><br></div><div>However, take a look at the incomplete variant route: <a href="https://www.openstreetmap.org/relation/8603360#map=14/52.0869/-4.6691">https://www.openstreetmap.org/relation/8603360#map=14/52.0869/-4.6691<br></a></div><div>and imagine that were part of a superroute. You could see, by inspecting the subroutes in turn</div><div>(for example, on umap) that this stop is used on one route segment but not another, even though</div><div>both segments pass along that way.<br></div><br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="#FFFFFF">
A segment end does not indicate a stop .. in PTV2. The segments need
to be in sequential order and so do the stops. <br></div></blockquote><div><br></div><div>A segment END? Who's talking about segment ends? I'm talking about a segment which may</div><div>have more than one stop or no stops at all. Who's talking about disordered segments? The whole</div><div>idea is to have the segments in order. Who's talking about disordered stops? The whole idea is</div><div>to have ordered stops.</div><div><br></div><div>What I'm talking about is a segment of a route with its stops. It may share one or more ways</div><div>with a different segments of that route, and it may share one or more stops (or none at all). One</div><div>of us is missing what the other is saying, right now I don't know which one of us that is.<br></div><div><br></div><div>-- <br></div><div>Paul</div><div><br></div></div></div></div>