As my personal biggest use of the public transportation relationship is to visualize the ways that public transit route would take, I must say I am personally against the idea. >From my personal experience of using a non-OSM website "wikiroutes", which is a website that let public enter public transit information from around the world into the platform for navigation and suggestion purpose by letting users first pick stop.m locations on a map, then try to automatically display the routing and finally let users correct the routing to complete the public transit route record in thdir database, I would say it's easier said than done to expect a software being able to auto-generate the ways based on station location, even with additional waypoints. First of all, I don't think there are any existing routing engines for trains on rail or bus or minibuses on street, so they will need to be developed first for renderer to be able to visualize these routes, especially for roads that regular vehicles cannot use. And then, for such renderer to work, access restriction for public transit vehicle need to be complete, which is rather difficult not just because of the work it take or the current incompleteness of the amount of keys in OSM that can be used to represent multiple localized types of transportation, but also because of things like mechanical restrictions of bus models that would not be available in any public document and cannot be verified outside of the public transit company. Second, when a user map a public transit relation using waypoints to handle a special case, how can they know when a waypoints would be needed? Even if such renderer is built into editor to show which route it would take and let users add waypoints when that's incorrect, different routers used by different renderers might route a route differently, what doesn't need a waypoint on one router maybe different on another router, how can editors know when it is necessary to add a waypoint to show a route correctly? If a new road is being built next to existing road which doesn't affect existing public transit routes, how to preemptively make sure routing engines won't automatically redirected a route to the new road? Third, way points are more transient than ways. It's more easy for a node to be deleted or replaced when editing geometry than ways. How to maintain integrity of a route geometry when others edit road geometry?
At 2020-03-06 Fri 18:08, John Doe <music.kash...@gmail.com> wrote: > > Stereo and I have been working on a schema that makes it easier to create > and maintain public transport route relations. We would like to invite > feedback, questions, and suggestions, so it can mature and hopefully gain > widespread use. > > > https://wiki.openstreetmap.org/wiki/Proposed_features/Simpler_public_transport_route_relations > > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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