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Hello Wolfgang, > for the purpose of calculating average speed on streetcar routes by > section, I need to extract the kilometration of the lines, including > stops of course. > > What I do not mean is to take a tool à la Google Earth's "path" tool > and re-trace the routes myself, since the vector paths are *already* in > the map. > > Is there any way to do this? in a first step you could take a planet file and filter out only the objects you need. Then you could import the filtered data into a database, e.g. with osm2pgsql. With a PostGIS database you are able to do many different geographic queries such as getting all nodes that are part of a way or calculating way lengths. Regards Alex -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 490 bytes Desc: This is a digitally signed message part URL: <http://lists.openrailwaymap.org/archives/openrailwaymap/attachments/20140308/69403f79/attachment.sig>