(1)         A traffic-related item complies substantially with the Australian Road Rules if—

            (a)         it is a reasonable likeness of a diagram in Schedule 4 of that kind of traffic-related item; or

            (b)         for a traffic-related item of a kind for which there is not a diagram in Schedule 4—it complies substantially with a description of that kind of traffic-related item in the Rules and, if the description includes a symbol for which there is a diagram in Schedule 4, the symbol on the item is a reasonable likeness of the diagram.

        (2)         A traffic-related item may be a reasonable likeness of a diagram of a kind of traffic-related item mentioned in the Australian Road Rules even though—

            (a)         the dimensions of the item, or of anything on the item, are different; or

            (b)         the item has additional information.

        (3)         A symbol on a traffic-related item may be a reasonable likeness of a diagram of a kind of symbol mentioned in the Australian Road Rules even though the dimensions of the symbol, or of anything on the symbol, are different.