diff --git a/src/station_cmd.cpp b/src/station_cmd.cpp --- a/src/station_cmd.cpp +++ b/src/station_cmd.cpp @@ -1649,7 +1649,16 @@ CommandCost CmdBuildRoadStop(TileIndex t static Vehicle *ClearRoadStopStatusEnum(Vehicle *v, void *) { - if (v->type == VEH_ROAD) RoadVehicle::From(v)->state &= RVSB_ROAD_STOP_TRACKDIR_MASK; + if (v->type == VEH_ROAD) { + /* Okay... we are a road vehicle on a drive through road stop. + * But that road stop has just been removed, so we need to make + * sure we are in a valid state... however, vehicles can also + * turn on road stop tiles, so only clear the 'road stop' state + * bits and only when the state was 'in road stop', otherwise + * we'll end up clearing the turn around bits. */ + RoadVehicle *rv = RoadVehicle::From(v); + if (HasBit(rv->state, RVS_IN_DT_ROAD_STOP)) rv->state &= RVSB_ROAD_STOP_TRACKDIR_MASK; + } return NULL; }