Index: road.h
===================================================================
--- road.h	(revision 22654)
+++ road.h	(working copy)
@@ -215,6 +215,7 @@
 	bool IsRoad();
 	bool IsTram();
 
+	RoadTypeIdentifier() : basetype(INVALID_ROADTYPE), subtype(INVALID_ROADSUBTYPE) {}
 	RoadTypeIdentifier(RoadType basetype, RoadSubType subtype) : basetype(basetype), subtype(subtype) {}
 	explicit RoadTypeIdentifier(uint8 data);
 };
Index: road_map.h
===================================================================
--- road_map.h	(revision 22654)
+++ road_map.h	(working copy)
@@ -643,11 +643,11 @@
 }
 
 struct RoadTypeIdentifiers {
-	RoadTypeIdentifier road_identifier = RoadTypeIdentifier(INVALID_ROADTYPE, INVALID_ROADSUBTYPE);
-	RoadTypeIdentifier tram_identifier = RoadTypeIdentifier(INVALID_ROADTYPE, INVALID_ROADSUBTYPE);
+	RoadTypeIdentifier road_identifier;
+	RoadTypeIdentifier tram_identifier;
 
 	/* Creates an INVALID RoadTypeIdentifiers */
 	RoadTypeIdentifiers() {}
 
 	/* Extracts the RoadTypeIdentifiers from the given tile
 	 * @param tile The tile to read the informations from