Where public safety, welfare or efficient operation of the airport reasonably require limited access thereto, the Director of Aeronautics shall establish restricted areas and post the same as being closed to the general public. No person shall enter any such posted restricted area except:
   (a)   Persons assigned to duty therein;
   (b)   Persons authorized by the Director of Aeronautics;
   (c)   Aircraft passengers, when directed by a person authorized under subsection (b) above, entering the aircraft parking apron area to embark or disembark.
(Ord. 2031, passed 2-5-1968)