No sign or sign structure shall be erected at the intersection of any street in such a manner as to obstruct free and clear vision, nor at any location where by its position, shape, or color it may interfere with or obstruct the view of or be confused with any authorized traffic sign, signal or device. All signs must comply with vision clearance triangle requirements as found in section 12-13-10 of this title except as may be permitted by section 12-14A-18 of this chapter. (Ord. 849, 8-17-2009)