is part of the access control system and is one of the important components of modern entrance and exit control. The door wing is driven by the control system and automatically opens and closes. The operating mode can be selected by programming: The door wing is automatically opened as long as the verification entrant is authorized. In an emergency, when the flow of people is congested, under the strong stamping of the crowd, the door wing can be pushed forward to safely evacuate the flow of people without causing accidental casualties. This requires a system that allows some users to pass through directly but directs others in another direction, for instance towards a reception desk or another part of the building.