world trade center timeline : 09/11/2001

Several subway lines are left without alternating current, which supplies power to the trains through the third rails, and without direct current, which runs the signals.

New York Times:

"Across the city, motorists were caught in gridlock and some blared car radio news reports for the benefit of nearby pedestrians. In one encounter, mourners and passersby were engrossed together at the open door of a long black stretch limousine that waited outside a funeral at St. John’s Church near the White House."