§ 154.136  STREETS.
   (A)   The width of the local streets shall be at least 30 feet and shall meet the standards of construction as prescribed herein.
   (B)   The minimum right-of-way width of streets shall be 60 feet.
   (C)   Alleys shall be discouraged in residential districts but should be included in commercial areas where needed for loading and unloading or access purposes and where platted shall have right-of-way of at least 20 feet in width.
   (D)   The centerlines of streets should intersect as nearly at right angles as possible.
   (E)   At intersections of streets and alleys, property line corners shall be rounded by arcs of at lease 25 feet of radii.
   (F)   At intersections of streets, the property line corners shall be rounded by arcs with radii of not less than 25 feet.
   (G)   The smaller angle or intersection of two streets shall not be less than 60 degrees.
   (H)   Intersections of more than two streets at one point shall be prohibited and intersections shall not be located closer than 200 feet from each other.
   (I)   Cul-de-sac streets may be permitted when they form a part of a logical design. They shall terminate in a circle with a minimum property line diameter of 120 feet, and a minimum pavement diameter of 90 feet or other open terminal area providing equivalent turning space. Any street over 1,000 feet in length, as measured to the center of the cul-de-sac, that terminates in a circle, shall have a minimum property line of 140 feet and a minimum pavement diameter of 110 feet or other open terminal area providing equivalent turning space.  No parking allowed in the cul-de-sac. Greenspace may be permitted in the center of the cul-de-sac. The greenspace to be maintained by the developer or homeowner’s association.
   (J)   Where limited access or parkways or other special type of designed streets are involved, the Commission may apply special standards to be followed in their design.
   (K)   Visibility on curved streets may be maintained along the centerline as follows:
      (1)   Primary arterials: to be determined by the Commission, but generally not less than 400 feet;
      (2)   Secondary arterials: 300 feet;
      (3)   Collector streets: 250 feet; and
      (4)   Local streets: 200 feet.
   (L)   Curvature measured along the centerline shall have a minimum radius as follows:
      (1)   Primary arterialize: 1,000 feet;
      (2)   Secondary arterials: 800 feet;
      (3)   Collector streets: 600 feet; and
      (4)   Local streets: 500 feet.
   (M)   No residential driveways shall connect to existing collector streets.
(Prior Code, § 154.91)  (Ord. 2000-05, passed 4-4-2000)