(1) To provide for maximum visibility along the public highways;
(2) To prevent unreasonable distraction of operators of motor vehicles;
(3) To prevent confusion with regard to traffic lights, signs, or signals or otherwise interfere with the effectiveness of traffic regulations;
(4) To preserve and enhance the natural scenic beauty or aesthetic features of the aforementioned public highways and adjacent areas;
(5) To promote maximum safety, comfort and well-being of users of the said highways.