Definition
All ground movement of an aircraft under its own power on the airport surface, excluding takeoff and landing. This includes movement on taxiways, ramps, and active runways while taxiing to or from a parking area, runway, or other location on the airport.
Plain English
Anytime the aircraft is moving on the ground using its own engine power, other than during the actual takeoff or landing roll, it is in taxi operations.
Context Anchor
Used when discussing ground movement at an airport, especially before takeoff, after landing, and in runway incursion avoidance training.
Derivation
‘Taxi’ comes from early aviation slang, borrowed from the taxicab — pilots described an aircraft moving slowly on the ground like a cab on a street. ‘Operations’ simply means the activities being conducted. Together: the activity of moving the aircraft around on the ground.
Why Pilots Care
Proper taxi operations are critical to avoiding runway incursions, which remain a leading cause of aviation accidents on the ground.
Grounding Statement
Taxi operations are the ground phase of flying: the airplane is not airborne, but the pilot is still actively controlling it and following airport rules.
Intuition Check
Do not think of taxi operations as simply “driving slowly.” In aviation, the term includes route planning, control of the aircraft, signs and markings, radio instructions when required, and stopping before protected runway areas.
Example Sentence 1
During taxi operations, the pilot kept a sterile cockpit and focused on airport signs, markings, and ATC instructions.
Example Sentence 2
Runway incursion avoidance begins with careful taxi operations and listening to all ATC instructions.