(A) A tangent at least 100 feet long shall be introduced between reverse curves on arterial and collector streets. Where there is a deflection angle of more than ten degrees in the alignment of a street, a curve with a radius adequate to ensure safe sight distance shall be made. The minimum radii of curves provided shall be required.
(B) Every change in grade shall be connected by a vertical curve constructed so as to afford a minimum sight distance of 200 feet, the sight distance being measured from a driver’s eyes, which are assumed to be four and one-half feet above the pavement surface, to an object four inches high on the pavement.
(C) Profiles of all streets showing natural or finished grades, drawn to an approved scale, may be required by the city.
(Prior Code, § 7.6)