diff --git a/src/train.h b/src/train.h
--- a/src/train.h
+++ b/src/train.h
@@ -114,6 +114,9 @@ struct Train : public SpecializedVehicle
 	RailTypeByte railtype;
 	RailTypes compatible_railtypes;
 
+	/** Ticks waiting in front of a signal, ticks being stuck or a counter for forced proceeding through signals. */
+	uint16 wait_counter;
+
 	/** We don't want GCC to zero our struct! It already is zeroed and has an index! */
 	Train() : SpecializedVehicle<Train, VEH_TRAIN>() {}
 	/** We want to 'destruct' the right class. */