Referring the end of a road and a position that is offroad

Describe the feature

In Domain Model for Road / Abstract Road Network / Nexus I would like a way to: express a position that is EndOfRoad and express a position that is OffRoad. Will this be possible?

What is EndOfRoad: There is/are no more road(s) to traverse.

What is OffRoad: The object is no longer on the road but is on an OpenArea.

What is OffDrivablRoad: The object is no longer on the road but is on a sidewalk (type), SideWalkJunction, ParkingSpot, Junction, ?

Describe the solution you would like

OPTION 1 - this may not be right

OPTION 2 - this may not be right

roads = [R_A.end(), R_B.start(), R_C.end(), R_D.start()]

until: v1.sPosition == R_A.end()  ???  Is R_A.end() => sPosition?

Describe alternatives you have considered

Describe the backwards compatibility

Additional context

LINKED TO:

https://code.asam.net/simulation/standard/openscenario-2.0/-/issues/242