A runway incursion happens when an aircraft, a vehicle or a person is somewhere it should not be on the protected part of a runway used for landing and takeoff. Many incursions end without anyone being hurt. The most serious ones can lead to a collision. When people are hurt in one of those collisions, it raises questions about who may be responsible.
Most people facing this term are seeing it for the first time in a news report or an official notice. It may have come up after a flight they were on, or after a crash that took someone they love. Along with it come the other questions: what happened on the ground, whether a pilot, a controller or the airport was involved, how medical bills and lost work will be handled, and what comes next. This page explains the term in plain words, how these events are classified, who is involved, what investigators examine, and how the legal questions are usually framed.
