OSM ping-pong-ping_pong-pong:
name=Boomklokstraat:
> highway=pedestrian (AND import therefore not error, but best guess in those days)
> highway=unclassified (100% correct: no residential houses/front doors, also throughroute)
> highway=residential (60% correct: no residential houses/front doors)
> highway=service (20% correct)
> highway=service + service=alley (10% correct)