A Passenger Boarding Bridge (PBB) is a movable, elevated walkway that extends from an airport terminal gate to an aircraft, allowing passengers to board and disembark from the aircraft without having to use stairs or walk on the Apron. The PBB, also known as an air bridge, jet bridge, jet way or sky bridge, is typically connected to the aircraft door via a tunnel or flexible connector that provides a sealed, climate-controlled passage between the terminal and the aircraft.
The PBB is operated by trained personnel and can be adjusted to accommodate different types and sizes of aircraft. It is generally considered a convenient and safe method of boarding and disembarking passengers, as it allows for easy access to the aircraft, even in inclement weather conditions. Additionally, the use of PBB can also help reduce ground delays and improve overall efficiency, as passengers can board and disembark the aircraft more quickly and efficiently than with other boarding methods.