Each roadway shall be not more than thirty-six feet in width measured at right angles to the center line of the driveway, except as increased by permissible curb return radii. The entire flare of any return radius shall fall within the right- of-way. No roadway shall be less than ten feet wide for one-way traffic or twenty feet wide for two-way traffic. (Ord. 523 § 1(part), 1989)