OK, thanks for the info and link. I'll try to conform to the convention, but it seems to me (I've just lived here two years, so I'm getting used to the street system here) that local usage here is to bundle the direction with the street number (the street system here is very planned and numbered like lat/long so an east west street runs all the way east and west with no break, unlike, say, Las Vegas where the streets often just end), and also the openstreetmap web UI does not include the direction in the street completion menu (so initially I tended to forget to include the direction at all).