What is a taxiway intersection?

The point where taxiways meet or cross, creating a shared surface with curved corners and a lighting layout that follows its shape.

FILLETPERPENDICULAR CROSSINGT-INTERSECTIONANGLED INTERSECTIONPLAN VIEW · ILLUSTRATIVE, NOT TO SCALE AIRCRAFT FOLLOWS THE GREEN CENTRELINE THROUGH THE SHARED AREA
taxiway edge lights
taxiway centreline lights
intersection area
intermediate holding position marking
The Fact ICAO Annex 14

A taxiway intersection is where two or more taxiways meet or cross. The paved area common to the routes is the intersection area, and aircraft on any of them can pass through it.

Layouts fall into three common shapes: a perpendicular crossing, a T-intersection where one taxiway joins another, and an angled intersection. The pavement is widened at the corners with curved fillets so a turning aircraft stays on the paved surface. Green centreline lights mark each route and blue edge lights, where provided, follow the pavement outline, fillets included.

Common layouts3 (crossing, T, angled)
Shared surfaceIntersection area
CornersCurved fillets
Edge lightsBlue
Centreline lightsGreen
Holding markingSingle broken line (yellow)
ReferenceICAO Annex 14 Vol. I; FAA AC 150/5300-13
Diagram not to scale. Fillet size depends on the aircraft the taxiway serves. For the lighting arrangement in detail, see the Taxiway Intersection Lighting entry.
Entry 13 · Runway intersection Entry 15 · Rapid exit taxiway

Frequently Asked Questions

Q1What is a taxiway intersection?

The place where two or more taxiways meet or cross, so a section of pavement is shared by the routes that pass through it.

Q2What types of taxiway intersection are there?

The common layouts are a perpendicular crossing, a T-intersection where one taxiway joins another, and an angled intersection where a taxiway branches off at an acute or obtuse angle.

Q3Why are the corners of a taxiway intersection curved?

The pavement is widened at the corners with curved fillets so that an aircraft turning through the intersection keeps its wheels on the paved surface. Where edge lights are provided they follow the fillet.

Q4How does a taxiway intersection affect the AGL layout?

Blue edge lights, where provided, outline the pavement including the fillets, each route keeps its own green centreline lights, and a holding position may be added where traffic must stop or give way. See the Taxiway Intersection Lighting entry for the detail.

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