oh yeah the idea why semi_connected is needed camp up because many (mainly highway=service & service=driveway and no other tags )in France and Switzerland are actually needed to get from roads for cars onto pathes/tracks. Often through a supermarket parking or similar while highway=service & service=driveway (likewise with no other tag) but mostly connected only on one side to public roads - are used to map ways to access a private house door or garden - they really clutter up the map hence I want to remove them. And yes - sadly far too little driveways add a foot=yes or foot=designated, or access=yes/access=designated while also far too many really private ways lack a access=private. Some people in OSM understand that service=driveway means it public without other tags, while others understand that it's private.