Runway Incursion Prevention Flashcards

What is a runway incursion?

Answer: Any unauthorized or incorrect presence of an aircraft, vehicle, or person on the protected area of a surface designated for landing or takeoff

A runway incursion is officially defined as any unauthorized or incorrect presence of an aircraft, vehicle, or person on the protected area designated for takeoff or landing.

What do the yellow painted double solid and double dashed lines across a taxiway indicate?

Answer: Runway holding position markings — vehicles must not cross without ATC clearance

The runway holding position markings (two solid and two dashed yellow lines) indicate the point beyond which vehicles must not proceed without explicit ATC clearance.

What does a flashing red light signal from the control tower mean to a vehicle operator on the airside?

Answer: Clear the runway or taxiway — there is danger

A flashing red light directed at a vehicle means to clear the runway or taxiway immediately because there is danger.

What is the most common contributing factor to runway incursions involving ground vehicles?

Answer: Failure to follow ATC instructions or misunderstanding of clearances

The most common cause of vehicle-related runway incursions is a failure to correctly follow or understand ATC instructions and clearances.

What should a vehicle operator do if an ATC instruction is unclear or not fully understood?

Answer: Request clarification from ATC before proceeding

A vehicle operator must always request clarification from ATC before proceeding when any instruction is unclear — guessing is never acceptable near runways.

What does a steady red light signal from the ATC tower mean to a ground vehicle operator?

Answer: Stop

A steady red light from the control tower is an instruction for the vehicle to stop immediately.

At what point must a vehicle operator stop at a runway holding position?

Answer: Before the hold short markings, so the entire vehicle remains on the taxiway side

The entire vehicle must remain on the non-runway side of the holding position markings until ATC clearance is received to cross.

What is the purpose of Runway Status Lights (RWSL)?

Answer: To provide an automatic, independent warning system that illuminates red lights when the runway is unsafe to enter or cross

Runway Status Lights are an FAA-developed safety system that automatically displays red in-pavement lights when sensor data determines that the runway is unsafe to enter or cross.

During low visibility operations (LVO) on the airside, what is a key additional precaution for vehicle operators?

Answer: Reduce speed, use radio communications more frequently, and confirm position before proceeding across any holding point

Low visibility conditions increase the risk of disorientation and incursions, so operators must slow down, communicate more actively with ATC, and verify their position before crossing any runway holding point.

What does a flashing white light signal from the ATC tower mean to a vehicle operator in the movement area?

Answer: Return to the starting point on the airport

A flashing white light directed at a vehicle on the airside means to return to the starting point on the airport.

What immediate action should a vehicle operator take upon hearing 'STOP STOP STOP' transmitted on the ATC frequency?

Answer: Immediately stop the vehicle in place without question

An emergency stop call requires all vehicles to stop immediately without hesitation or confirmation — every second matters in preventing a runway incursion collision.

What is the recommended action when a vehicle operator becomes unsure of their position on the airfield at night or in reduced visibility?

Answer: Stop the vehicle in a safe place and contact ATC for guidance

Stopping in a safe location and contacting ATC for guidance is the safest response to positional uncertainty — continuing without knowing your location greatly increases incursion risk.

Which of the following best describes a 'surface incident' as distinguished from a runway incursion?

Answer: An event where a vehicle or aircraft incorrectly enters a taxiway or apron area without authorization but does not involve a runway

A surface incident is an unauthorized or incorrect presence on a taxiway or other non-runway surface area, distinct from a runway incursion which specifically involves the runway protected area.

What is the significance of reading back an ATC runway crossing clearance?

Answer: It confirms mutual understanding between ATC and the vehicle operator and allows ATC to correct any error before the crossing

Reading back ATC clearances, including runway crossing instructions, creates a closed communication loop that allows ATC to catch and correct any misunderstanding before the vehicle enters the runway.