At times special roadway types, such as scenic drives, industrial roads, freeways, half-streets, marginal access and frontage roads may be necessary. The following requirements govern the situations.
(A) Freeways. Whenever a freeway, railroad track or expressway passes through or adjacent to a proposed subdivision, the Plat Officer may require a street approximately parallel to and on each side of the right-of-way, at a distance suitable for the appropriate use of the intervening land, as for park purposes in residential districts, or for commercial or industrial purposes in appropriate districts. The distances shall also be determined with due regard for the requirements of approach grades and future grade separations.
(B) Marginal access road. Marginal access roads should have 24-foot widths with sidewalks on the development side and curb and gutter where deemed necessary.
(C) Cul-de-sac streets. Cul-de-sac streets designed to have one end permanently closed shall not exceed 1,000 feet in length. All cul-de-sac streets designed to have one end permanently closed shall terminate in a circular turn-around having a minimum outside curb radius of 40 feet.
(D) Half streets. In general, half streets should be avoided, but where they are essential a minimum pavement surface of 20 feet in width shall be constructed with both curb and sidewalk on the development side.
(E) Reserve strips. Reserve ("spite" or "devil") strips controlling access to streets shall not be permitted. Streets roughly paralleling the subdivision boundary shall be located not less than one lot depth from the boundary. All streets intended to provide the subdivision with future means of ingress and egress shall extend to the subdivision boundary.
(F) Streets in flood plains. Elevations of collector or major streets passing through flood areas shall be at least two feet above the 100-year recurrence interval flood local and shall be designed to have minimum adverse effect upon flood flows or velocities. All local streets, other than parkways, shall be two feet above the 50-year flood level.
(G) Private roads prohibited. Private roads and streets shall be permitted only when the subdivider submits sufficient evidence to the Committee that there can be no public interest in the private road or street.
(H) Alleys and pedestrian ways.
(1) Alleys shall be at least 16 feet wide, where permitted, in residential areas. Alleys at least 22 feet wide shall be provided in commercial areas unless the areas are otherwise provided with off-street loading space.
(2) Pedestrian ways shall be at least 12 feet wide, where permitted, and a four-foot chain-link fence with a top rail shall be installed at side boundary lines to within 12 feet of street or alley lines.
(3) Dead end alleys shall not be allowed.
(2001 Code, § 34-6-11)