(a) Vision Setback at Intersections of Public Streets.
(1) Where two (2) public streets intersect at grade level, the intersection shall be day- lighted by excluding all buildings, structures and other obstructions to view; including shrubbery and trees (except highway and street signs) from the triangles adjacent to the intersection described as follows:
Bounded on two (2) sides by the near boundaries of the intersec- ting streets and on the third side by a line drawn so as to intersect the street boundaries at points thirty-five (35) feet distant from the point of intersection of the street boundaries at the comer.
(2) In situations where trees of large diameter, large numbers of trees, or some combination of these are present, this provision shall be construed to mean that a sufficient number of trees shall be removed so as to render an object such as a motor vehicle clearly visible across the vision clearance triangle from one street or road to another, the intent being to provide for the public safety; but it shall not necessarily be construed to mean that every tree in the vision clearance triangle must be removed.
(b) Exception. In the case of arterial streets intersecting with other arterial streets or railways, the comer cutoff distances establishing the triangular vision clearance space shall be increased to fifty (50) feet.