}

			}

			DoClearSquare(tile);

			if (keep_rail) MakeRailNormal(tile, owner, TrackToTrackBits(track), rt);

			AddTrackToSignalBuffer(tile, track, owner);

			YapfNotifyTrackLayoutChange(tile, track);

			DeallocateSpecFromStation(st, specindex);

			affected_stations.Include(st);

	if (quantity == 0) return CMD_ERROR;

	for (T **stp = affected_stations.Begin(); stp != affected_stations.End(); stp++) {

		T *st = *stp;

		/* now we need to make the "spanned" area of the railway station smaller

		 * if we deleted something at the edges.

		 * we also need to adjust train_tile. */

		MakeRailStationAreaSmaller(st);

		UpdateStationSignCoord(st);