No sign or other advertising structure as regulated by this chapter shall be erected at the intersection of any streets in such a manner as to obstruct free and clear vision or at any location where, by reason of the position, shape or color, it may interfere with, obstruct the view of or be confused with any authorized traffic sign, signal or device or which makes use of the words, "STOP," "LOOK," "DRIVE-IN," "DANGER" or any other word, phrase, symbol or character in such manner as to interfere with, mislead or confuse traffic. (Prior code § 21-1-17)