The following requirements shall apply to special street types:
(a) Cul-de-sac streets shall not exceed 600 feet in length and have minimum length of 160 feet measured from the right-of-way line at the intersection to the center of the paved turnaround. The closed end shall be a paved turnaround having a minimum radius of forty (40) feet to the outer pavement edge and a radius of fifty (50) feet to the right-of-way line. Pavement shall cover all area within the outer pavement edge.
(b) Permanent dead-end streets shall not be permitted. Temporary dead-end streets shall be permitted only as a part of a continuing street plan, and only if a temporary turnaround satisfactory to the Village Engineer in design, maintenance, and removal is provided. Dead-end streets longer than 200 feet shall not be permitted.
(c) Dedication of new half-streets shall not be permitted. Where a dedicated or platted half-street exists adjacent to the tract being subdivided, the other half shall be platted.
(d) Where a subdivision adjoins an arterial street, a marginal access street may be required to control access to the arterial from lots fronting on it. Access is controlled in the interest of public safety and to maintain the design capacity of the street system. Points of access to the arterial shall be spaced at a minimum of 1,000 feet. A planting strip having a minimum width of 20 feet shall be provided between the pavement of the arterial street and the pavement of the marginal access street. The minimum width of the marginal access right-of-way shall be thirty (30) feet.
(e) Alleys shall not be approved in residential districts, except where justified by extreme conditions. Alleys may be required in commercial and industrial districts if other provisions cannot be made for adequate service access. When required, alleys shall have a minimum right-of- way width of 20 feet and a pavement width of 20 feet.