Most state laws make it illegal to lock exit doors if the building is occupied. The door does not have to allow people to come in through them, only to exit through through them.
Even if there are "excess" doors available (e.g., 10 doors for 2,000 people and only 50 people inside, which could easily fit through one or two doors), ALL required fire doors must be properly illuminated, signed and operable regardless of how many people happen to be inside. In theory, a fire or other emergency could start in any part of the structure and every fire exit must be available for use by any untrained person inside. Trained personnel on a night shift, for instance, may allow all but two doors to be locked (or shuttered), because the training includes instructions on where the two open exits are.
The A380 has 16 exit doors.
The duration of Behind Locked Doors is 1.05 hours.
Hotel doors are either locked by a key or a swipe of a card.
Behind Locked Doors was created on 1948-09-03.
It tells you the doors are not locked. The light goes out when you lock the doors. It's just a friendly reminder to lock your doors.
if doors are locked they cannot bee unlocked
Call the police. Patrol cars carry equipment to open locked doors.
Locked Doors - 1925 is rated/received certificates of: USA:Passed (National Board of Review)
The owners had locked doors to control workers' breaks.
Behind Locked Doors - 1948 was released on: USA: 3 September 1948 (Hollywood, California)
Behind Locked Doors - 1948 is rated/received certificates of: Australia:M USA:Approved (certificate #13276)
The biggest obstacle to workers trying to escape the Triangle Shirtwaist Factory fire was that the exit doors were locked and could not be opened.