§ 155.026 STREETS.
   (A)   The street and alley layout shall provide access to all lots and parcels of land within the subdivision, and where streets cross other streets, jogs shall not be created. Cul-de-sacs shall not exceed 2,640 feet.
   (B)   Proposed streets shall be adjusted to the contour of the land so as to produce useable lots and streets of reasonable gradient.
   (C)   Certain proposed streets, where appropriate, shall be extended to the boundary of the tract to be subdivided so as to provide for normal circulation of traffic within the vicinity.
   (D)   Wherever there exists a dedicated or platted portion of a street or alley adjacent to the proposed subdivision, the remainder of the street or alley to the prescribed width shall be platted within the proposed subdivision.
   (E)   Widths of arterial and feeder streets shall conform to the widths specified in the Thoroughfare Plan.
   (F)   The minimum right-of-way of residential streets, including marginal access streets or cul-de-sacs, shall be 60 feet. All cul-de-sacs shall terminate in a circular right-of-way, with a minimum diameter of 76 feet, or other arrangement for the turning of all vehicles conveniently within the right-of-way.
   (G)   Alleys shall not be permitted in residential areas, but shall be included in commercial and industrial areas where needed for loading and unloading or access purposes and, where platted, shall be at least 20 feet in width.
   (H)   The centerlines of streets should intersect as nearly at right angles as possible.
   (I)   At intersections of street and alleys, property line corners shall be rounded by arcs of at least 20 feet radii or by chords of such arcs.
   (J)   At intersection of streets, the property line corners shall be rounded by arcs with radii of not less than 15 feet or by chords of such arcs.
   (K)   If the smaller angle of intersection of two streets is less than 60 degrees, the radius of the arc at the intersection of property lines shall be increased as deemed advisable by the Commission.
   (L)   Intersections of more than two streets at one point shall be avoided.
   (M)   Where parkways or special types of streets are involved, the Commission may apply special standards to be followed in the design of such parkways or streets.
   (N)   Whenever the proposed subdivision contains or is adjacent to a railroad right-of-way or a highway designated as a “limited access highway” by the appropriate highway authorities, provision shall be made for a marginal access street or a parallel street at a distance acceptable for the appropriate use of the land between the highway or railroad and such streets.
   (O)   Horizontal visibility on curved streets and vertical visibility on all streets must be maintained along the centerlines as follows:
      (1)   Arterial streets: 500 feet;
      (2)   Feeder streets and parkways: 300 feet; and
      (3)   Residential streets: 150 feet.
   (P)   Curvature measured along the centerline shall have a minimum radius as follows:
      (1)   Arterial streets: 500 feet;
      (2)   Feeder streets and parkways: 300 feet; and
      (3)   Residential streets: 150 feet.
   (Q)   Between reversed curves on arterial streets, there shall be a tangent of not less than 100 feet, and on feeder and residential streets such tangent shall not be less than 40 feet.
   (R)   Maximum grades for streets shall be as follows:
      (1)   Arterial streets: not greater than 6%; and
      (2)   Feeder and residential streets and alleys: not greater than 10%.
   (S)   The minimum grade of any street gutter shall not be less than 0.5%.
   (T)   Proposed streets that are extensions of or in alignment with existing streets shall bear the same name as that borne by the existing street.
   (U)   (1)   Normally, only one street, driveway or point of vehicle access shall be permitted from a subdivision onto an arterial or feeder street; provided, however, that, any such street, driveway or point of vehicle access shall not be allowed if unreasonably harmful to the health, safety and general welfare of the public.
      (2)   Two or more streets, driveways or points of vehicle access may be permitted by the Commission, if they do not impair the public health, safety and general welfare.
(Ord. passed 6-5-1991)