What does taxiing an aircraft involve?

Taxiing an aircraft specifically refers to the process of moving the aircraft on the ground using its own engines prior to takeoff or after landing. This movement typically occurs between the runway and the parking area, or between the terminal and the runway, and is essential for maneuvering the aircraft safely at the airport.

During taxiing, pilots must follow designated taxiways and adhere to air traffic control instructions to avoid collisions and ensure safe operations on the ground. This phase is critical for maintaining the overall flow of airport operations, ensuring that aircraft arrive and depart efficiently.

The other options do touch on various aspects of aircraft operations but do not accurately describe taxiing. Starting the engines, for instance, is a preparatory step that occurs before the aircraft begins its movement; it is not the taxiing process itself. Landing at the destination is a crucial final phase of flight that occurs after taxiing, and preparing the aircraft for boarding pertains to ground operations prior to passengers entering the aircraft, unrelated to the act of taxiing.