The Closings and cancellations following the September 11, 2001 attacks reference article from the English Wikipedia on 24-Jul-2004
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Closings and cancellations following the September 11, 2001 attacks

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September 11, 2001 attacks
Timeline
Background history
Planning and execution
September 11, 2001
Rest of September
October
Aftermath
Victims
Casualties
Missing Persons
Survivors
Foreign casualties
Rescue workers
Effects
US government response
World political effects
World economic effects
Airport security
Closings and cancellations
Movies and TV shows
Response
Rescue and recovery effort
Financial assistance
Memorials and services
Perpetrators
Responsibility
Organizers
Miscellaneous
Communication
Slogans and terms
Misinformation and rumors
Opportunists
Following the September 11, 2001 attacks, several institutions responded with closures, cancellations, and postponements. Some of the most significant are listed here.

Table of contents
1 Closings
2 Evacuations
3 Cancellations
4 Postponements
5 Travel effects
6 External link

Closings

(taken to mean unusual closures on September 11, for any reason)

Evacuations

(taken to mean evacuation in light of perceived threat of attack)

Cancellations

Postponements

Travel effects

For at least a full day after the attacks, bridges and tunnels to the island of Manhattan were closed to (non-emergency) vehicle traffic in both directions. Among other things, this interrupted scheduled deliveries of food and other perishables, leading to shortages in restaurants.

All civilian airplane traffic in the United States was grounded until Thursday, September 13. United Airlines cancelled all flights worldwide temporarily. First stranded planes were allowed to go to their intended destinations; then limited service resumed. On Thursday night the New York area airports (JFK, La Guardia, Newark) were closed again, and were reopened Friday morning. The only traffic from La Guardia during the closure was a single C9C government VIP jet, departing at approximately 5:15PM on the 12th.

All train service through Union Station was suspended.

Beginning September 27, one-occupant cars were banned from crossing into Lower Manhattan from Midtown on weekday mornings, in an effort to relieve some of the crush of traffic in the city (the morning rush hour was lasting from 5:30 AM to noon), caused largely by the increased security measures put in place.

External link