Lysaker: remove incorrect buildings added from microsoft/BuildingFootprints
Norefjell: add piste:difficulty near some of the very steep bits
Norefjell: update nordic pistes to current location and connect it to downhill sections
Add toll gantry to Norefjell and split road into two one-ways around the old toll booth.
Specify building and roof levels
Determine whether building construction is now completed
Survey if places (shops and other shop-like) still exist
Survey if places (shops and other shop-like) still exist
Survey if places (shops and other shop-like) still exist
Determine whether amenities are inside buildings
Fix footprint of new building based on N50 and more recent photos
Meierikvartalet is mostly done outside. Add rough footway connections where it is possible to walk.