A. All new curbs set and all curbs reset at intersections or projecting angles of streets shall be set or reset to the lines of circular arc, tangent to curblines, of the greatest radii possible that will not reduce the width of the sidewalk at any point to less than that of the sidewalks of the lesser widths. The curb opposite the projecting angle shall have a circular arc tangent to curblines of the greatest radius possible, that will not reduce the width of the roadway at any point to less than that of the roadway of lesser width.
B. The radii of all curbs reset at intersections of streets where traffic regulations not permit vehicular traffic to turn corners, shall be determined by the Director of the Department of Public Works with the approval of the Director of Public Works. This subsection shall apply only as long as traffic regulations do not permit such vehicular traffic turns; otherwise, Subsection Ahereof shall apply and shall remain in full force and effect.