What should a vehicle operator do when approaching a runway?

When approaching a runway, the correct action for a vehicle operator is to stop, check for any aircraft, and obtain clearance from air traffic control. This procedure is crucial for ensuring safety in an area where aircraft are operating.

Stopping allows the operator to take a moment to visually assess the situation around them, looking for any incoming or departing aircraft. This is vital because aircraft often move quickly and may not be immediately visible until the vehicle is close to the runway.

Additionally, obtaining clearance from air traffic control is necessary because it confirms that there is no conflicting air traffic at that time, allowing the vehicle to cross the runway safely. Adhering to this protocol minimizes the risk of accidents and ensures compliance with aviation regulations.

The other options may seem appealing because they emphasize speed, but they compromise safety. Accelerating or increasing speed could lead to dangerous situations if an aircraft is approaching, as it reduces the operator's ability to respond appropriately and may contribute to a runway incursion. Calling out to alert nearby aircraft is also not a substitute for following the established procedures; while communication is essential, it does not ensure safety without first confirming the absence of aircraft through clearance.