I've updated my map of GB cycle lanes (and quiet cycle routes). Rendered using Geofabrik/Osmosis/Maperitive. Now with OdbL data...
http://www.transportparadise.co.uk/DualCycleNetworkMap/ It looks to me like there's quite a lot of cycle lanes missing. A lot of cycle lane data is available from DfT for review and copying across, but doesn't appear to have made it's way into OSM yet: http://wiki.openstreetmap.org/wiki/England_Cycling_Data_project (and yes this is a bit complicated, but it's quite easy once you get going) A major part of the update to the cycle lane map has been identifying urban main roads based on the presence of residential side roads. This was done using a python algorithm in Maperitive. The results look pretty accurate (not many false positives). In good share-alike style, I can do three things with the output: 1) put the output back in the database, by using existing keys (eg maxspeed=30 mph + maxspeed:source=inferred from presence of residential side streets) 2) put the output back in the database, using new keys (eg maxspeed:inferred=30 mph + maxspeed:inferred:source = presence of residential side streets) 3) publish the algorithm It doesn't make much difference to me, but clearly people might find the data useful. So I'm open to views/suggestions. Richard
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