(A) The design of all streets shall be considered in their relation to existing and planned streets, to reasonable circulation of traffic, to topographical conditions, to runoff of storm water, to public convenience and safety, and in their appropriate relation to the proposed uses of the land to be served by the streets.
(B) Where a subdivision abuts or contains an existing or proposed expressway or primary street, the Committee may require marginal access streets, deep lots with rear service alleys or other treatment as may be necessary for adequate protection of residential properties to afford separation of through and local traffic.
(C) Proposed streets shall, as near as practicable, provide for the continuation, connection or projection of streets in surrounding areas, or conform to a plan for a neighborhood as may have been adopted by the Regional Planning Commission.
(D) Dead-end, or stub-end, streets are prohibited. However, where it is necessary to provide circulation to undeveloped property adjacent to the boundaries of the proposed subdivision, a temporary cul-de-sac with a turn-around radius of not less than 75 feet shall be provided within the subdivision and adjacent to its limit for what would otherwise be a stub-end street. Provision will be made by the subdivider that when the right-of-way is extended into the adjacent property, that portion of the turn-around in excess of the right-of-way width will revert to the adjacent property owner or owners.
(E) Reserve strips controlling access to streets or alleys shall be prohibited.
(F) All streets shall be named, and the names of the streets in proposed plats shall be chosen as to avoid confusion or duplication with existing street names.
(G) Half streets shall be prohibited. In case a half street is adjacent to a tract to be subdivided, the other half of the street shall be platted within the tract.
(H) Maximum length of permanent cul-de-sac streets shall be 500 feet measured from the centerline of the intersection street to the center of the turning circle. Each cul-de-sac shall be provided at the closed end with a turn-around having a minimum roadway diameter of 100 feet, and a maximum street property line diameter of 120 feet. No cul-de-sac may intersect with another cul-de-sac.
(I) Alleys in residential developments will be prohibited. Service roadways may be required in commercial and industrial developments, except where other provisions for suitable access and off-street loading and unloading are assured.
(J) Street jogs shall be prohibited.
(K) The angle of the intersection between local streets and major streets shall not vary by more than ten degrees from a right angle. All other streets should intersect each other as near to a right angle as possible and no intersection of streets at angles of less than 70 degrees shall be permitted.
(L) Edge of surface course or curb line shall be designed with 30-foot minimum radius turnout. Additional right-of-way shall be provided as needed.
(M) Major streets shall be designed with curves having a centerline radius of not less than 500 feet, except where a lesser radius is deemed safe and adequate to the public need. All other streets shall be designed with curves having a centerline radius of not less than 250 feet. There shall be a minimum tangent distance of 100 feet between reverse curves.
(N) The intersections of a subdivision street with any existing highway shall be designed as specified by the agency having maintenance authority.
(O) Street grades:
(1) Maximum: 7%; and
(2) Minimum: 0.40%.
(P) Minimum standards for surface width, shoulder width and right-of-way:
(1) Urban section (lots average less than 150 feet at the street setback line).
Street Type | Right-of-Way (footage) | Surface Width (footage) | Shoulder |
Street Type | Right-of-Way (footage) | Surface Width (footage) | Shoulder |
Alleys | 25 | 16 | * |
Boulevard | 100 | 24 | 7 |
Collector highway | 80 | 22 | 5 |
Cul-de-sac | 60 | 26# | * |
Land access | 60 | 22 | * |
Subdivision street | 60 | 36# | * |
NOTES TO TABLE: *No gutters required # Includes face to face of curb | |||
(2) Rural section (lots average more than 150 feet at the street setback line).
Street Type | Right-of-Way (footage) | Surface Width (footage) | Shoulder |
Collector highway | 80 | 22 | 7 |
Cul-de-sac | 60 | 22 | 5 |
Land access highway | 60 | 22 | 5 |
Subdivision street | 60 | 22 | 5 |
(Prior Code, § 151.20) (Ord. passed 9-10-1973)