### - r -

- RAILTRACK_INVALID : AIRail
- RAILTRACK_NE_SE : AIRail
- RAILTRACK_NE_SW : AIRail
- RAILTRACK_NW_NE : AIRail
- RAILTRACK_NW_SE : AIRail
- RAILTRACK_NW_SW : AIRail
- RAILTRACK_SW_SE : AIRail
- RAILTYPE_INVALID : AIRail
- ROAD_LAYOUT_2x2 : AITown
- ROAD_LAYOUT_3x3 : AITown
- ROAD_LAYOUT_BETTER_ROADS : AITown
- ROAD_LAYOUT_INVALID : AITown
- ROAD_LAYOUT_ORIGINAL : AITown
- ROADTYPE_INVALID : AIRoad
- ROADTYPE_ROAD : AIRoad
- ROADTYPE_TRAM : AIRoad
- ROADVEHTYPE_BUS : AIRoad
- ROADVEHTYPE_TRUCK : AIRoad