Warin's example is good. A couple of other points to consider ... 1) The "via" tag can be useful. Take a look at Line 5 in Lancaster. Sometimes it goes "via" Chestnut and sometimes "via" Pleasure, but never both. 2) If the line has a designated destination, I'd use that. Again, looking at Line 5, the named destination is "Grandview/Rossmere". Looking at the actual stops, it seems to me that "Rossmere" is a "via" and "Grandview" is the actual destination. Looking further, it seems that the Lancaster Shopping Center is the consistent point, so I would make two relations, one "to" Lancaster Shopping Center (Grandview) and the other "from". 3) Again on the same line, there is a way that is actually traversed twice in the SAME direction, the short part after leaving Michaels. This can be mapped. (See, for example, http://www.openstreetmap.org/relation/5849581#map=17/31.63434/-8.00037, where http://www.openstreetmap.org/way/389916567 is traversed twice in the same direction.)
For Lines 1, 2 and 3, I'd mark them as "to" Park City A (or B or C), with a "via". For instance, Line 1 would be to (or from) "Park City A" via "Southeast" with a terminus at Park City. On Sun, Oct 1, 2017 at 7:07 AM, <[email protected]> wrote: > > Message: 5 > Date: Sat, 30 Sep 2017 22:31:30 -0400 > From: Albert Pundt <[email protected]> > To: "Tag discussion, strategy and related tools" > <[email protected]> > Subject: [Tagging] How to map public transport routes that start and > end at the same place and overlap themselves? > Message-ID: > <CALGMrhm1=A2ErnBdPAxckkwB50BzLKVv2AvDqZ9fFRSiiiQ9nA@mail. > gmail.com> > Content-Type: text/plain; charset="utf-8" > > I'm in Lancaster, PA right now and would like to add the Red Rose Transit > <http://www.redrosetransit.com> bus lines to OSM. The network is made up > of > six "City" lines, serving destinations close to the city, and 11 "County" > lines, which are radial routes to nearby towns with stops along the way. > (An interactive map of each route can be found here > <http://busfinder.redrosetransit.com/Infopoint>.) What I'm confused about > is how to properly map the relations of the City routes based on the > information in the wiki page > <http://wiki.openstreetmap.org/wiki/Public_transport>. > > The page says that each direction of the route should be a separate > relation. For the County routes such as Route 10/Lititz > <http://www.redrosetransit.com/wp-content/uploads/2017/ > 08/Route-10-all-8-28-17.pdf>, > this is easy (though I'm still figuring out how the system's forks work). > Since the Queen St Station is the hub of the entire network and serves as > the starting point for most of the routes, I'd have a relation for the > outbound direction that starts there and ends at Lititz, and another > starting and Lititz and ending at Queen St Station. > > However, the City routes aren't so simple. All of them are effectively > loops that start and end at the same place, but have significant overlap > with itself in the other direction. For most such as Route 1/Park City A SE > <http://www.redrosetransit.com/wp-content/uploads/2017/ > 08/Route-1-8-28-17.pdf>, > they start at Queen St, go out toward one destination, come back to the > other side of town to a different destination, then come back toward Queen > St. It effectively makes a very misshapen figure 8. Neither far end of it > really serves as a terminal, but rather a prominent station, of which there > are several along every route. > > What's the best way to map something like this, where the beginning and end > are the same place, making it a one-way loop that overlaps itself? I > suppose it all boils down to how to deal with this kind of situation: > [image: Inline image 1] > --Albert > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: <http://lists.openstreetmap.org/pipermail/tagging/ > attachments/20170930/01627963/attachment-0001.html> > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: image.png > Type: image/png > Size: 6513 bytes > Desc: not available > URL: <http://lists.openstreetmap.org/pipermail/tagging/ > attachments/20170930/01627963/attachment-0001.png> > > ------------------------------ > > Message: 6 > Date: Sun, 1 Oct 2017 16:06:52 +1100 > From: Warin <[email protected]> > To: [email protected] > Subject: Re: [Tagging] How to map public transport routes that start > and end at the same place and overlap themselves? > Message-ID: <[email protected]> > Content-Type: text/plain; charset="utf-8"; Format="flowed" > > On 01-Oct-17 01:31 PM, Albert Pundt wrote: > > I'm in Lancaster, PA right now and would like to add the Red Rose > > Transit <http://www.redrosetransit.com> bus lines to OSM. The network > > is made up of six "City" lines, serving destinations close to the > > city, and 11 "County" lines, which are radial routes to nearby towns > > with stops along the way. (An interactive map of each route can be > > found here <http://busfinder.redrosetransit.com/Infopoint>.) What I'm > > confused about is how to properly map the relations of the City routes > > based on the information in the wiki page > > <http://wiki.openstreetmap.org/wiki/Public_transport>. > > > > The page says that each direction of the route should be a separate > > relation. For the County routes such as Route 10/Lititz > > <http://www.redrosetransit.com/wp-content/uploads/2017/ > 08/Route-10-all-8-28-17.pdf>, > > this is easy (though I'm still figuring out how the system's forks > > work). Since the Queen St Station is the hub of the entire network and > > serves as the starting point for most of the routes, I'd have a > > relation for the outbound direction that starts there and ends at > > Lititz, and another starting and Lititz and ending at Queen St Station. > > > > However, the City routes aren't so simple. All of them are effectively > > loops that start and end at the same place, but have significant > > overlap with itself in the other direction. For most such as Route > > 1/Park City A SE > > <http://www.redrosetransit.com/wp-content/uploads/2017/ > 08/Route-1-8-28-17.pdf>, > > they start at Queen St, go out toward one destination, come back to > > the other side of town to a different destination, then come back > > toward Queen St. It effectively makes a very misshapen figure 8. > > Neither far end of it really serves as a terminal, but rather a > > prominent station, of which there are several along every route. > > > > What's the best way to map something like this, where the beginning > > and end are the same place, making it a one-way loop that overlaps > > itself? I suppose it all boils down to how to deal with this kind of > > situation: > > > > --Albert > > Take a look at > http://www.openstreetmap.org/relation/7258397#map=15/-33.7219/150.3061 > > Starts and ends at the same place. > > Has loops where it travels on the same road in both directions. > > That help? > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: <http://lists.openstreetmap.org/pipermail/tagging/ > attachments/20171001/c7fc5190/attachment.html> > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging > > > ------------------------------ > > End of Tagging Digest, Vol 97, Issue 1 > ************************************** >
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