[Tagging] distance_from_road tag

[marc marc]

Of course this tag is a bad idea, which duplicates existing information
in osm and is therefore a source of conflict when one of the 2 data is
capitalized and not the other one.

if not, what next ?
distance_from_bus_stop ?
distance_from_tram_stop train station pub supermarket postoffice town
hall, capital, lake, ocean, forest, school and nearby addr (see
http://taginfo.openstreetmap.ch/keys/location:description:de#values )