bool GetIfClassHasNewStopsByType(const RoadStopClass *roadstopclass, RoadStopType rs, RoadType roadtype);

bool GetIfStopIsForType(const RoadStopSpec *roadstopspec, RoadStopType rs, RoadType roadtype);

const RoadStopSpec *GetRoadStopSpec(TileIndex t);

int AllocateSpecToRoadStop(const RoadStopSpec *statspec, BaseStation *st, bool exec);

void DeallocateSpecFromRoadStop(BaseStation *st, byte specindex);