1172.05 DESIGN STANDARDS-STREET IMPROVEMENTS.
   (a)   Intersections. The alignment and grade on the roadway should be in accordance with the Ohio Department of Transportation Location and Design Manual, January 1991, as amended.
      (1)   The vertical alignment or grade of the roadway within 100 feet of an intersection should be six percent (6%) or less with three percent (3%) being the desired maximum. An unobstructed "sight triangle" of not less than seventy-five (75) feet measured along the centerlines of the intersecting streets shall be provided. Property lines at street intersections shall be rounded with a radius of not less than fifty (50) feet for major arterial streets, thirty (30) feet for collector and industrial streets and twenty-five (25) feet for local streets.
      (2)   Streets shall be designed to intersect as nearly at ninety (90) degrees as possible. No street shall intersect another at less than seventy (70) degrees. The intersection of more than two (2) streets at one point shall not be permitted. Intersection separation shall be in accordance with the provisions of Section 1172.03.
      (3)   Combinations of pavement cross slopes and profile grades may produce unacceptable drainage conditions within the intersection area. For this reason, intersection details indicating pavement elevations, direction of flow, location of catch basins, and any other pertinent information to adequately describe the drainage characteristics of each intersection shall be required.
   (b)   Vertical Alignment. The maximum grade for major arterial and industrial streets shall be five percent (5%); seven percent (7%) for collector streets; and eight percent (8%) for local streets. Grades in excess of these requirements shall be permitted for short distances of approximately 200 feet as approved by the Engineer. The minimum grade for all streets shall be one-half of one percent (0.5%). All changes in grade shall be connected by vertical curves of sufficient length to maintain minimum site distance as outlined in the Ohio Department of Transportation Location and Design Manual.
   (c)   Horizontal Alignment. Properly designed curving residential streets are encouraged. Angles of horizontal alignment of the centerlines of streets shall be connected by a curve with a radius of not less than 500 feet for major arterial streets; 300 feet for collector and industrial streets; and 200 feet for local streets. Between reverse curves, there shall be a centerline tangent of not less than 100 feet.
   (d)   Cul-de-sac Streets. Cul-de-sac streets shall be permitted where parcels are surrounded by development, where irregular topography would require excessive grading for continuous streets, or where other types of non-through streets would not provide sufficient discouragement of through traffic. All cul-de-sac streets shall be terminated with a permanent turnaround having a minimum curb radius of fifty (50) feet and a street property line radius of sixty-five (65) feet. If the cul-de-sac street does not open in the direction of schools or playgrounds, a pedestrian way may be required. In addition, the Commission may require that the center of the turnaround be landscaped with appropriate plant material and/or be designed to provide off-street parking spaces. The maximum length of cul-de-sac streets shall be determined by the Engineer.
   (e)   Temporary Dead-End Streets. Where a proposed subdivision adjoins undeveloped land, a temporary "T" turnaround may be provided for each abutting street if approved by the Engineer. Provisions shall be made for the future extension of such streets and utilities and for the reservation of the right of way to the abutting properties.
   (f)   Streets of Nonconforming Width. Streets of less than the required width shall not be permitted except where the Commission finds such a street will be adequate to serve the proposed development. Wherever property abuts a street which does not conform to the width required by the Official Map, the Subdivision Regulations, or plans of the County or Ohio Department of Transportation, the additional width shall be provided when the land is subdivided.
   (g)   Reserve Strips Adjoining Streets. A division of land to prevent access or extensions to pavement or utilities to another property shall not be permitted except where the control and provisions for disposal of such land division have been assigned to the Municipality.
   (h)   Driveways. Residential sublot driveways shall be located not less than seventy-five (75) feet from the intersection of the projection of the right-of-way lines of the nearest intersecting streets. The driveway apron grade shall not exceed five percent (5%) within ten (10) feet of the street right of way, and the maximum grade of the driveway shall not exceed ten percent (10%).
      (1)   Minimum width of apron.
         A.   Residential areas: twenty (20) feet at curb, ten (10) feet at sidewalk.
         B.   Industrial areas: forty (40) feet at curb, twenty (20) feet at sidewalk.
      (2)   Type and thickness of apron material.
         A.   Residential areas: six inches (6") Portland cement concrete with mire mesh.
         B.   Industrial areas: seven inches (7") Portland cement concrete with wire mesh.
   (i)   Street Names. Names shall be selected which will not duplicate or be confused with the names of existing streets in the Municipality irrespective of modifying terms such as street, avenue, boulevard, etc. Streets that are or will eventually be continuations of existing or platted streets shall be named the same except as otherwise determined by the Planning Commission. Street names shall be subject to the approval of the Commission.
(Ord. 2016-07-24. Passed 8-3-16.)