(a) The following regulations shall govern the design and layout of street intersections:
(1) Streets shall be designed to intersect at ninety degrees. Streets shall remain in the right angle of intersection for 100 feet beyond the point of intersection.
(2) Where a proposed subdivision abuts or contains an existing or proposed arterial street, the number of intersections with the arterial shall be kept to a minimum and shall not be located less than 1,000 feet apart, measured from centerline to centerline. Intersections of local streets with local or collector streets shall not be located less than 200 feet apart; intersections of collector streets with collector streets shall not be located less than 300 feet apart. Intersections of any street with arterial streets shall be located not less than 1,000 feet apart.
(3) Multiple intersections involving junctions of more than two streets shall be prohibited.
(4) Four-way intersections of local streets should be avoided and three-way or T-intersections should be encouraged wherever possible.
(5) The minimum pavement radius at intersections shall be twenty-five feet; the minimum right-of-way radius shall be twenty-five feet, except for industrial or major street intersections which shall have a minimum of thirty-five feet.
(6) Safe sight distances shall be provided at all intersections. Earth banks and vegetation (including trees) shall be removed, as deemed necessary, in connection with the grading of the public right of way to assure safe sight distances. A safe sight distance shall be assured by allowing that no sign, fence, wall, shrub or other obstruction to vision exceeding three feet in height above the established street grade, shall be erected, planted or maintained within the area of a corner lot that is included between the lines of the intersecting streets and a straight line connecting them at points thirty feet in distance from the intersection of the street lines.