I'm surprised Dagny hasn't posted this one already.
If DC had to evacuate, would you know what to do? Homeland Security says you need a plan
Quote:
...DC Homeland Security officials said Monday they could evacuate the city if disaster struck. They are prepared to deploy more than 130 traffic control officers onto DC streets, and would use more than 10,000 security cameras to control traffic lights and move people out of the District.

They’re worried, though, that many people don’t even know where evacuation routes are in the city. ...