What is the appropriate action when encountering moving aircraft airside?

When encountering moving aircraft airside at Vancouver International Airport, the appropriate action is to reduce speed and yield to the aircraft. This is crucial for maintaining safety in an environment where larger and more complex vehicles, such as aircraft, have the right of way. Yielding minimizes the risk of collisions and ensures that the aircraft can operate smoothly without the added concern of vehicular interference.

Aircraft have a much larger mass and require considerable space for movement, both on the ground and during takeoff or landing. As a result, ground vehicles must prioritize their movements to accommodate the traffic patterns and operational needs of the aircraft. Reducing speed allows for better situational awareness and the ability to react appropriately if the aircraft changes direction or speed unexpectedly.

The other options are not advisable because speeding up could lead to a dangerous situation where the vehicle might collide with aircraft; weaving around them could create confusion and unpredictability in an already busy area; and relying solely on hand signals does not guarantee safe communication with aircraft operators, who may be focused on their immediate flight operations. Therefore, yielding is the safest and most responsible approach when navigating near moving aircraft.