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
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