ACE Practice Test & Exam Prep

What is a slot in capacity management?

A time window allocated to a flight to manage capacity and delay. A permit for gate assignment. The maximum number of flights per day. A type of runway marking.

Correct Answer:

A time window allocated to a flight to manage capacity and delay.

Explanation:

A slot in capacity management is a scheduled time window assigned to a specific flight, dictating when it can land or depart. This timing window helps manage limited airport resources—like runways and gates—by staggering arrivals and departures so congestion, safety risks, and delays are minimized. It creates predictability in the flow of traffic, allowing controllers and airports to coordinate throughput during busy periods. It’s about when a flight fits into the runway/gate system, not about granting gate access or setting a daily flight cap, and it isn’t a runway marking. For example, assigning a 10:30 to 10:35 landing slot helps keep the arrival stream orderly and reduces queueing and delays.

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