What does ATC do when there is an emergency? This could be a tower or an ARTCC being evacuated or otherwise unusable.
- How do they decide whether to close the airport/airspace?
- What do they do with the traffic, whether they do or don't close?
On this related question, it turned out that Newark closed because of smoke in the tower.
Another user posted an interesting anecdote about another tower being evacuated, so I thought it warranted a question.