§ 159.052 CIRCULATION.
   (A)   Arterial streets. Each subdivision shall provide for the continuation of all arterials as shown on the major street plan. Arterial streets should be located on the perimeter of the residential neighborhood.
   (B)   Local streets. Local streets should be designed to provide access to each parcel of land within the residential neighborhood and within industrial areas, and in a manner that will discourage use by through traffic. They should be planned so that future expansion will not require the conversion of local streets to collector or arterial street functions. Ingress and egress to residential properties should be provided only on local streets.
   (C)   Collector streets. Collector streets shall be designed to provide a direct route from local streets to arterial streets and highways. Each subdivision shall provide for the continuation of collector streets from abutting subdivisions and shall be located in general conformance to the major street plan.
   (D)   Pedestrianways. Pedestrian ways should be separated from roadways used by vehicular traffic. Sidewalks should be designed to provide all residential building sites with direct access to all neighborhood facilities, including the elementary school, parks and playgrounds, churches and shopping centers.
(Prior Code, § 11-4-3) (Ord. 594, passed 8-5-1997)    (U)   Grades. The grades of all streets shall not exceed the following:
 
Lanes and places
10%
Minor arterial and collector
6%
Subcollector
10%
No street grade shall be less than 0.5%
 
   (V)   Alignments. The horizontal and vertical alignment for all streets shall not be less than the following:
      (1)   (a)   Horizontal alignment - centerline radius.
 
Collectors, subcollectors
100 feet minimum
Minor arterials
300 feet minimum
Places, lanes
50 feet minimum
 
         (b)   There should be a tangent between all reverse curves having an adequate length, in relation to the radii of the curves, to provide for a smooth flow of traffic.
      (2)   All changes in street grades shall be made with vertical curves with not less than the following minimum lengths:
 
Collector, local
100 feet, but not less than 20 feet for each algebraic difference of the intersecting slope lines*
Minor arterials
200 feet, but not less than 50 feet for each algebraic difference of the intersecting slope lines
*This requirement may be waived where the algebraic difference is less than 0.60%
 
(Prior Code, § 11-6-1) (Ord. 594, passed 8-5-1997)