AUC 207 ADD 8 SUBWAY VETILATION FANS

Question 0

Sections of the Transit system are equipped with mechanical ventilation system that utilizes

Answer 0

Large ventilation fans for air movement when natural ventilation is inadequate

Question 1

Train movement accounts for

Answer 1

Most of the natural air circulation in the Transit System.

Question 2

For the purpose of this addendum reference to IC is presumed to mean an

Answer 2

Officer above the rank of Captain

Question 3

There are approximately 200 ventilation fan plants located throughout the Transit system, each fan plant having between

Answer 3

One and four fans. Most of the plants have a single fan. Plants serving under-river tubes may have up to 4 fans

Question 4

With the exception of the Lenox-White Plains Tube, fans are located at

Answer 4

Both ends of ALL under river tubes

Question 5

Not every subway station has

Answer 5

An associated fan plant. Fans are not universally distributed throughout the subway system

Question 6

Each Fan Plant has a

Answer 6

• 4 digit ID number
• Fan Plant ID numbers and locations have been entered into CIDS and may appear as additional information on the teleprinter dispatch ticket

Question 7

Individual fans have an air movement capacity of

Answer 7

Between 50,000 and 300,000 CFM

Question 8

Most Transit System Fans operate in

Answer 8

• Exhaust mode

* A small number operate in supply mode

Question 9

Ventilation fans associated with under-river tubes are

Answer 9

Reversible, as are replacement fans. On some older type fans the direction of the airflow can be changed by moving the dampers

Question 10

Fans will not be affected by

Answer 10

Power removal ordered by the FD

Question 11

TA will activate fans

Answer 11

Prior to FDNY Arrival, if in their judgement such activation will provide relief to exposed train passengers. This decision will be based on information received from TA employees at the incident.

Question 12

In the event that fans have been activated prior to FDNY arrival the TA will

Answer 12

Notify the IC via the FDNY dispatcher of the location of the fans and the mode in which they are operating

Question 13

When fans have been activated by the TA prior to FDNY arrival, control of the fans

Answer 13

Passes to the FDNY upon the arrival of the IC

Question 14

The IC shall notify all FD Units on the scene of any

Answer 14

Fan activation or fan shut down. Units shall notify the IC of any adverse conditions resulting from the aforementioned

Question 15

The IC can request via the dispatcher

Answer 15

Information regarding fan capability in the vicinity of the operation

Question 16

All FDNY requests to the TA for fan activation or shutdown must be directed through

Answer 16

The IC to the FDNY dispatcher

Question 17

The IC may opt to activate fans at

Answer 17

One end of the tube only or activate fans at both ends of the tube, one in exhaust mode and one in supply mode

Question 18

The evacuation of passengers from under river tubes should take place

Answer 18

AWAY from any fan operated in exhaust mode.

Question 19

In a smoke condition the

Answer 19

Track bed may be more comfortable for the passengers than the bench wall (AKA Catwalk) since the track bed may be below the smoke level. However BOTH the track bed AND bench wall are acceptable avenues of evacuation

Question 20

If simultaneous operations are taking place at a major incident, a decision must be made early in the operations as to

Answer 20

Which borough will control the incident. Considerations should be given to having all units operate on the same borough frequency

Question 21

A Command Post must

Answer 21

Be established at one end of the tube at a location determined by the IC. A Sector Supervisor or Branch Director if established can supervise operations on the other end of the tube

Question 22

Nothing in this addendum should be construed to

Answer 22

Require or mandate the use of subway fans at FDNY subway operations. The decision to use or not to use the fans must be made by the IC after an assessment of the need for, and potential impact of such action