A distinction can be made between scheduled and unscheduled downtime. The employees experience 60 minutes of unscheduled downtime. Queen Alia Airport has various amounts of cargo traffic, both unscheduled and scheduled. Currently, this only shows meetings, both scheduled and unscheduled "emergency" meetings. These taxis make frequent unscheduled stops to pick up passengers, which can cause accidents. It serves civil and governmental, scheduled and unscheduled domestic and international flights. Over a dozen other scheduled and unscheduled languages are also spoken. This concept of unscheduled maintenance was initially introduced for aircraft engines to mitigate engine failures. Emergency physicians care for unscheduled and undifferentiated patients of all ages. Joey Logano had to two unscheduled stops due to flat tires. Reservations for unscheduled IFR flights are not required all day on Saturdays. Tenerife was an unscheduled stop for both flights. The park has had some unscheduled closures. The Team Planner also shows unscheduled and unassigned tasks. The airport has only unscheduled chartered flights.