Tomasz Kaźmierczak wrote: > I would like to suggest making the paved key for highways > (and probably other types of elements) official.
First of all, this is OSM: there are no "official" or "unofficial" tags. Use what you like as long as it accords with core OSM tagging principles such as verifiability. Secondly, however, as someone who parses surface tagging for both routing and rendering at http://cycle.travel/map, this proposal is unnecessary. (cycle.travel renders paved cycleways, firm unpaved and rough unpaved tracks/cycleways differently, and applies different routing penalties based on surface.) Your use case is that the new tag would make it easier for data consumers to tell whether a road is paved or not. It wouldn't. It's already very easy. You simply have a list of the surface= values that your application counts as paved (and this isn't as universal as you might think: are cobblestones "paved"? They're fine if slow in a car, but torture on a thin-tyred road bike). This is literally just two lines of code in an osm2pgsql Lua tag transform script, and thus available to anyone using the standard rendering toolchain. If you don't want to do it this way, you can run a Postgres query post-import, or just some extra conditions in your Mapnik/Carto .mml file. It's really not hard. Please, please, please don't fall into the trap of trying to optimise for data consumers when you're not a data consumer. OSM has far too much of this and it's resulted in a lot of nonsense tags over the years. Since you'd never reach 100% coverage for paved=, the data consumer would need to continue to parse the surface= tag. So the main effect would be to make life _harder_ for data consumers, who would now have to check not just three surface-type tags (surface=, tracktype=, smoothness=) but four. Or in other words: http://xkcd.com/927/ cheers Richard -- View this message in context: http://gis.19327.n5.nabble.com/New-key-proposal-paved-yes-no-tp5817998p5818124.html Sent from the Tagging mailing list archive at Nabble.com. _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
