ConstReadonlycarriageway: 0Driving surface (markings on asphalt).
Readonlyconcrete: 3Bridge decks, parapets and piers.
Readonlyjunction: 4Junction discs (no markings).
Readonlykerb: 2Kerb faces and verges.
Readonlysidewalk: 1Sidewalk top (paving slabs).
Road part codes (
road.w).