(A) Horizontal street curves shall have the following minimum radii of centerline curvature.
Primary and secondary routes | 300 feet |
Arterial and collector streets | 200 feet |
Residential streets | 100 feet |
(B) A minimum tangent of at least 100 feet shall be provided between reversed curves on all residential streets; greater tangential lengths shall be required on collector and arterial streets and other higher order thoroughfares.
(C) The Planning Commission may modify such minimum standards in the following situations.
(1) When a collector or residential street’s lines deflect from each other at any point by more than ten degrees, they shall be connected by a curve with a radius adequate to ensure a sight distance of not less than 200 feet or with such greater radius as the Planning Commission may deem necessary for the particular situation.
(2) For arterial streets, curves with radii adequate to ensure longer sight distances may be required by the Planning Commission.
(3) In subdivisions where the street pattern is curvilinear, curves shall have radii acceptable to the Planning Commission.
(Ord. 2317, passed 12-21-2006)