Intersecting Runways

Intersecting runways have their own specific standards for separation. (7110.65 3-10-4)

Issue traffic information to each aircraft operating on intersecting runways.

Separate an arriving aircraft using one runway from another aircraft using an intersecting runway or a nonintersecting runway when the flight paths intersect by ensuring that the arriving aircraft does not cross the landing threshold or flight path of the other aircraft until one of the following conditions exists:

• The preceding aircraft has departed and passed the intersection/flight path or is airborne and turning to avert any conflict. 

• A preceding arriving aircraft is clear of the landing runway, completed landing roll and will hold short of the intersection/flight path, or has passed the intersection/flight path.

Additional requirements apply when wake turbulence from the departing aircraft is a concern. Separate aircraft landing behind a departing aircraft on a crossing runway if the arrival will fly through the airborne path of the departure by the appropriate radar separation or the following interval:

• Heavy, large, or small behind super - 3 minutes.

• Heavy, large, or small behind heavy - 2 minutes.

• Small behind B757 - 2 minutes.