No person shall hang, suspend, place, or construct any awning, frame, balcony, cornice, or any other projection so as to obstruct the visibility of any traffic sign or signal placed or erected as authorized or required by law.
(Sec. 15-6.5, R.O. 1978 (1983 Ed.)) (1990 Code, Ch. 15, Art. 6, § 15-6.5)