Newby on OSM, I see that a lot of good work is completed about the railway network, but it seems that the relevant tags are not always consistent.
Should a way/relation relative to a railway line be described as a «line» of the SNCB/NMBS (with the focus on the service, the operator, the destinations, and so) or a physical infrastructure of Infrabel (with the focus on the technical characteristics) ? Now, there are «lines» focused on the first choice: http://www.openstreetmap.org/browse/relation/271000 Relation: Bruxelles - Namur - Liège - Liers Tags: name = Bruxelles - Namur - Liège - Liers network = IC operator = NMBS/SNCB ref = IC M and others focused on the 2d: http://www.openstreetmap.org/browse/relation/107939 (A little line between Gembloux and Jemeppes) Tags: operator = infrabel ref = 144 No node as stop, even though there are some, like Mazy: http://www.openstreetmap.org/browse/node/369736818 not tagged as part of the line. I've tried to download this URL: http://osmxapi.hypercube.telascience.org/api/0.6/relation[network=IC|CR][bbox=2.54,49.49,6.41,51.55] expecting to get all the lines and stops of Belgium, but that failed. I think that an osm-client, an application, should be able to make a request returning all the railway lines of Belgium, or all the train-relations of the SNCB/NMBS, and that's not identical. In the 1rst relation, there are unused railways, in the 2d, there are some lines redundant with others (international lines, f.i.). A finest request could return the IC, IR or L lines if the tags are accurate. So what do you think ? In the case of the line 144, must a new relation be introduced with references to the same ways, but with other tags ? I'm not a specialist of railway-centric obsessions, and not the best person to initiate this debate, but I think it's important if we hope OSM gives coherent information, not only nice maps. By the way, have some mappers had contact with Infrabel or SNCB/NMBS ? Are they kindly or unwilling about the use of their data ? Regards, Gauthier
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