(svn r11265) -Feature: Make more advanced rail types more expensive to build.

src/road_cmd.cpp

@@ -605,7 +605,7 @@ CommandCost DoConvertStreetRail(TileIndex tile, RailType totype, bool exec)
 		VehicleFromPos(tile, &tile, UpdateTrainPowerProc);
 	}
 
-	return CommandCost(_price.build_rail / 2);
+	return CommandCost(RailBuildCost(totype) / 2);
 }