Runway incursion.

Bottom line

A runway incursion is any occurrence at an airport involving an aircraft, vehicle, person, or object on the ground that creates a collision hazard or results in a loss of separation with an aircraft taking off, landing, or intending to land. Planning, clear communications, and enhanced situational awareness during airport surface operations reduces the potential for surface incidents. A pilot should always be aware of the aircraft’s position on the surface at all times and be aware of other aircraft and vehicle operations on the airport.