(1) Intersections – Requirement. A clear vision area shall be maintained on the corners of all property adjacent to the intersection of two streets. Sight obstructions (e.g., fences, signs, plantings) shall be set back from public roadways when and as necessary to present a clear view of such roadway from all roads, alleys or private driveways; provided, that such required setback distance shall not exceed required setbacks for the zone in which the property is located. Trees, outside of intersection areas, may be permitted within the setback area, provided all branches and foliage are removed to a height of eight feet above the top of the curb, or where no curb exists, from the established center line grade of the street.

(2) Intersection – Measurement. A clear vision area shall consist of a triangle, two sides of which are curb line (or street edge lines) and the third side of which is a line across the corner of the lot connecting the ends of the other two sides. The size of the clear vision area is determined by the distance from the intersection of the two street lines to the third side, measured along the street. The required size is as follows: