Opposite direction operations between sunrise and sunset minimum distance between runway centerlines?

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Multiple Choice

Opposite direction operations between sunrise and sunset minimum distance between runway centerlines?

When runways are used in opposite directions, there must be enough lateral separation between their centerlines so traffic in the two directions doesn’t come into conflict. In daylight, visual cues and ATC coordination allow a smaller separation than in night or instrument conditions, but a safe minimum is still needed. The value of 1,400 feet is the standard minimum centerline distance for opposite-direction operations during sunrise to sunset. It provides adequate lateral room for aircraft on the two runways to operate without interfering with each other while maintaining efficient airport use. Choices significantly smaller would not meet safety separation, while larger numbers aren’t necessary for daylight operations.

When runways are used in opposite directions, there must be enough lateral separation between their centerlines so traffic in the two directions doesn’t come into conflict. In daylight, visual cues and ATC coordination allow a smaller separation than in night or instrument conditions, but a safe minimum is still needed.

The value of 1,400 feet is the standard minimum centerline distance for opposite-direction operations during sunrise to sunset. It provides adequate lateral room for aircraft on the two runways to operate without interfering with each other while maintaining efficient airport use. Choices significantly smaller would not meet safety separation, while larger numbers aren’t necessary for daylight operations.

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