Between Balsa Avenue and the northerly terminus:
A. Thirty (30) miles per hour is the prima facie speed limit which is most appropriate to facilitate the orderly movement of traffic and is a speed limit which is reasonable and safe on such portion of such street; and
B. Thirty (30) miles per hour hereby is declared to be the prima facie speed limit on such portion of such street.
('61 Code, § 14.1-21) (Ord. 880, passed - - )