[OSM-talk] highway=unsurfaced

[Steve Chilton]

I have added highway=unsurfaced to the Map Features page as it is in use by many mappers, and has been rendered by Osmarender for a while now.
Rationale that I use is that highway=unsurfaced is used for part of the public highway (therefore subject to rules of road/law, and is by extension traversable by normal road cars) that happens to not have a tarmac surface.
As against this highway=track is any unsurfaced way that is not part of public highway (eg farm tracks, etc, and not normally traversable by normal road cars).
To this end I have changed rendering on mapnik layer to unsurfaced as white fill with pecked line casement, and track to brown dashed line.
At same time I moved cycleway to blue dashed line as the two types of green line symbolisation for bridleways and cycleways were not distinct enough to differentiate easily in my eye.
PS: I am aware of the recent discussion on the list about unsurfaced roads of a higher status (tertiary, secondary and even primary apparently), but that will have to wait a while as the way mapnik rendering works would need to pick up highway=foo AND key=unsurfaced and THEN have a different style assigned to each highway type, AND change at every width change as it goes through the levels - later maybe!
 
Cheers
STEVE