All corner lots at street intersections or railroads crossings shall maintain for safety vision purposes a triangular area, one angle of which shall be formed by the lot lines adjacent to the street(s) or railroad right-of-way. The sides of such triangle forming the corner angle shall be twenty feet in length measured along the sides of the aforementioned angle. The third side of the triangle shall be a straight line connecting the last two mentioned points. Within the area comprising the triangle nothing shall be erected, placed, planted or allowed to grow so as to materially impede vision higher than twenty-four inches above the centerline grades of intersecting streets and/or railroads. Landscaping not exceeding the height limits of this section is encouraged within clear view triangles. The reviewing official may consider the landscaped triangle area as part of any landscape requirement if planted and continuously maintained by the property owner(s). (Ord. 1634, § 31, 2004.)