(1) Fire Escapes. No sign shall be erected in such a manner that any portion of the sign or its support will interfere with the use of any fire escape, exit, or standpipe, or obstruct any required stairway, door, ventilator, or window.

(2) Traffic. No freestanding or projecting sign shall be erected at any intersection improved for vehicular traffic within a triangular area formed by the property lines and their projections and a line connecting them at points twenty-five (25) feet from the intersections of the projecting property lines; unless same in its entirety is less than three (3) feet, or more than eight (8) feet above the curb grade, no part of its means or support has a single or joined horizontal dimension exceeding twelve (12) inches, or said sign is within an area in which a building or structure is permitted by the provisions of the respective zone.

(3) Utility Lines. No sign shall be erected or maintained which has less horizontal or vertical clearance from communication lines and energized electrical power lines than that prescribed by the laws of the State of Utah or rules and regulations duly promulgated by agencies thereof.

(4) Clearance. No sign shall be erected in such a manner that any portion of the sign or its support will extend over a public or private walkway with a minimum clearance of less than ten (10) feet.