You can use explode on your street mark lines if they are hatches, Rhino will explode them to surfaces. If they are the same z level as your street you’ll have to raise them slightly to avoid z fighting with the street surface. Or trim them out of the street surface not too easy if you have lots of them. You can extrude surf on these to get solids.
If you have curves you can use surface from edge curves or planar surf commands in the surface menu. Or use extrude solid option to get a solids.
RM