(1) A clear view area at the intersection of two streets shall be maintained within a triangular area formed by a diagonal line connecting lines at the top back of the curbs 40 feet from the projected intersection of such curb lines. To maintain this clear view no visual obstructions between three and seven feet in height from the street elevation, as measured from the elevation of the adjoining sidewalk, shall be allowed.

(2) A clear view area shall also be maintained at the intersection of a street and a private drive within a triangular area formed by a diagonal line connecting the line of the curb of the street and the line of the edge of the private drive at points 20 feet from the projected intersection of such lines. In order to maintain this clear view, the standards outlined in subsection (1) above shall apply.