(A) Angle of intersection. The centerline of all streets shall intersect as nearly at a 90 degree angle as possible, but in no case shall the angle of intersection be less than 75 degrees or greater than 105 degrees (unless a special modification is granted by the Planning Commission due to certain exceptional conditions).
(B) Centerline offset of adjacent intersections. The use of four-way type intersections shall be discouraged where possible and the use of T-intersections shall be encouraged. Where T-intersections are used, the following minimum centerline offsets of adjacent intersections shall be as follows:
TYPE OF STREET | MINIMUM CENTERLINE OFFSET OF ADJACENT INTERSECTIONS IN FEET |
Local --Local | 150 |
Local --Collector | 150 |
Collector --Collector | 200 |
(C) Corner radii. Property lines at street intersections shall be provided with a radius of not less than 15 feet. If because of certain exceptional conditions, a modification is granted permitting an angle of intersection less than 75 degrees, or greater than 105 degrees, then the minimum radii shall be increased or decreased respectively.
(D) Grades approaching intersections. Grades approaching intersections should not exceed 4% for a distance of not less than 100 feet from the centerline of said intersections for local streets and 150 feet for collector streets.
(E) Design adjacent to freeways, expressways or arterials. The following principles and standards shall be used in the design of subdivisions adjacent to freeways, expressways or arterials:
(1) Street design shall have the purpose of making adjacent lots desirable by cushioning the impact of heavy traffic and of minimizing the interference with traffic on such thoroughfares.
(2) The number of intersections with collector streets along said thoroughfares shall be held to a minimum. Wherever practicable such intersections shall be spaced not less than 1/4 mile apart. Frontage or service roads shall be encouraged.
(3) Where frontage roads are not required, residential lots adjacent to such thoroughfares shall be served by a local residential street paralleling said thoroughfare at a generous lot depth therefrom or by a series of cul-de-sacs or loop streets extending towards said thoroughfare from a collector street.
(4) When the rear of any lot borders any such thoroughfare, the subdivider or developer may be required to execute and deliver to the city, an instrument, deemed sufficient by the city's Legal Counsel, prohibiting the right of ingress and egress from said thoroughfare to said lot. This may be in the form of a deed for a one-foot strip for non-road purposes.
(Ord. 1971-2, passed 4-6-71)