Centre line.
Colours.
Asphalt cracks (0…1); damage adds more.
Solid lines along both edges.
Dashed lines between lanes (when lanes > 1).
Lanes per direction.
Asphalt patches (0…1).
Potholes on dirt and gravel (0…1); they fill with water when wet.
Dirt and gravel ruts (0…1); they fill with water when wet.
Sidewalk slab size, metres.
Weather floor (each pixel shows the larger of this and the context's state nodes).
Carriageway surface.
Use: polished tyre tracks, faded paint, deeper ruts, grass on dirt crowns (0…1).
Carriageway width (kerb to kerb), metres; markings are laid out on it.
Look of a RoadSurface. Plain JSON; every value is live.