42.—(1) This rule shall apply to flying machines and vehicles on any part of a land aerodrome provided for the use of aircraft and under the control of the person in charge of the aerodrome.
(2) Notwithstanding any air traffic control clearance it shall remain the duty of the pilot-in-command of a flying machine to take all possible measures to ensure that his flying machine does not collide with any other aircraft or vehicle.
(3) Flying machines and vehicles shall give way to aircraft which are taking off or landing.
(4) Vehicles and flying machines which are not taking off or landing shall give way to vehicles towing aircraft.
(5) Vehicles which are not towing aircraft shall give way to aircraft.