Seymour Lp Int Siding Ops Procedure

Effective from Effective to Number Year Operator Issued
14/12/2010    2764  2010  GEN  14/12/2010 
 
SEYMOUR LOOP INTERMEDIATE SIDING
OPERATING PROCEDURES
========================================

On Monday 19.12.10, the Intermediate Siding extending from the East Line Road of Seymour Loop will become available for use.

The following operating procedures will apply to the operation of the siding’s main line points.

SEYMOUR LOOP - INTERMEDIATE SIDING
========================================

An Intermediate Siding is provided leading off the East Line Road at Seymour Crossing Loop at distance 101.700. Direct access to the Siding is available for Up direction rail traffic movements.

The Siding supports an ‘in-clear’ standing room of 1220 metres. The points governing access to the siding (No.115 points) are secured in the Normal position by motorised points which are released for use via the operation of V5PSW key switches as detailed below.

The main line points operate in conjunction with a Derail and Wheel Crowder situated at the exit from the siding. The Derail and Wheel Crowder is rodded to the main line points.

Description of Equipment:
------------------------------------

The main line points at the Intermediate Siding are controlled from two V5PSW key switches located in a safeworking cabinet adjacent to the points.

The first V5PSW key switch (the Release V5PSW Key Switch) is used to accept the release from Network Control. The release may be manually cancelled by turning the key to the left hand position.

The Release indication (a Yellow light) is:

* Flashing when the release is offered by the Network Controller, and

* Steady when the release is accepted locally.

The second V5PSW key switch (the Points V5PSW Key Switch) is utilized to operate the points to the Normal or Reverse position as required.

Three indicating lights are provided above this key switch and they are normally extinguished unless a release has been given:

N (Green): Indicates that the points are set in the Normal position.

Free (White): Indicates that the points are free to be operated from the key switch.

R (Yellow): Indicates that the points are set in the Reverse position.

To operate the points to either the Normal or Reverse position, the V5PSW key must be operated to the required position, held in that position until the points have operated to the required lie and then returned to the centre position to be removed. A delay of up to 20 seconds may occur during the operation of the points command.

The cabinet also contains a separate control panel comprising of a Fortress key release and V5PSW key switch for use during a failure of the remote control release or the motorized points at the siding.

The door to the cabinet is secured closed with a V5PSW padlock

Rail Traffic Movement to Enter Siding
----------------------------------------------

The movement must be stopped so that the lead vehicle is closer than 100 metres to the points, but not within 3 metres of the points.

The competent person must then:

1. Contact the Network Controller and request a release for the points.

2. Note that the indications on the control panel have illuminated and that the Yellow release light is flashing, signifying the release is available.

3. Insert the V5PSW key into the release key switch and accept the release by turning the key to the Right hand position. Hold the key in that position until the release light is steady.

4. The points will now be unlocked and the Points Free light will illuminate.

5. Remove the V5PSW key from the release key switch and insert it into the points key switch and turn the key to the Right hand position.

6. Once the points are indicated as being in the Reverse position, remove the key.

7. The movement may then shunt as required.

8. Once the shunt is completed, the movement must be clear of the points, after which the points must be normalized and the release cancelled.

Rail Traffic Movement to Depart the Siding after being Locked Away
-----------------------------------------------------------------------------

The competent person must:

1. Contact the Network Controller and request a release for the points.

2. Note that the indications on the control panel have illuminated and that the Yellow release light is flashing, signifying the release is available.

3. Insert the V5PSW key into the release key switch and accept the release by turning the key to the Right hand position. Hold the key in that position until the release light is steady.

4. The points will now be unlocked and the Points Free light will illuminate.

5. Remove the V5PSW key from the release key switch and insert it into the points key switch and turn the key to the Right hand position.

6. Once the points are indicated as being in the Reverse position, remove the key.

7. The movement may then depart the siding and stop clear of the points on the main line.

8. The points must be normalized and the release cancelled.

Note: Distance markers have been positioned at the 500, 1000 and 1500 metre
distances to assist the Driver in determining the train has cleared the main line points.

Failure of Points Release/Control System - Description of Equipment Provided
---------------------------------------------------------------------------------

An emergency operation lock (EOL) is also provided in the safeworking cabinet.

The EOL key will enable the motorized points to be manually operated during a failure of the system. The EOL key must not be removed without the approval of the Network Controller.

The process of removing the EOL key is initiated by operating the V5PSW release key switch to the Right hand position. This process will initiate an alarm on the Network Controller’s VDU. Whilst the release request is in process, the Yellow release light will flash and at the end of an approximate 4 - 9 minute time interval, the light will become steady, indicating that the key is available to be withdrawn.

The EOL key may then be removed by operating the push button and removing the key. Once the key is released from its lock, all Signals leading over the points are secured at the Stop position.

The EOL key is returned to its lock by replacing the key in to the lock and turning the key to the right.

Failure of Points Release/Control System
------------------------------------------------------

In the event of a failure of the points release/control system and it is necessary for the motorized points governing access to the Siding to be manually operated, the following procedure must be observed:

The Network Controller must:

1. Ensure that there are no other rail traffic movements affecting the release.

2. Check the VDU screen and associated lever to ensure that all signals leading into the section are at the Stop position.

3. Request the competent person to place the points key switch to the Normal position for 30 seconds and then return the V5PSW key to the central position and remove the key from the switch.

4. Request the competent person to place the Release key switch to the Normal position and then return the V5PSW key to the central position and remove the key from the switch.

5. The Network Controller must then cancel the release and attempt the procedure again.

If the local control system is still not responding, the Network Controller must:

1. Ensure the Home Arrival Signals governing access to the East line leg of the Loop are blocked at the ‘Stop’ position.

2. Request the competent person to operate the EOL lock to release the key.

3. Where the communication link has not been lost between Network Control and the local safeworking cabinet, ensure that the alarm is generated as soon as the request for the EOL key is made.

The Competent Person must then:

1. Place the V5PSW Key into the EOL key switch and place it to the Reverse position and leave it in that position for 6 minutes.

2. When the release becomes available, remove the Fortress key from the lock by turning it to the Left hand position.

3. Place the V5PSW to the Left hand position (Cancel Position) and remove the key.
4. Proceed to the main line points and unlock the Selector lever with the Fortress key and place it into the ‘Hand’ position.

5. Unlock the Hand Throw lever and place the main line points to the correct position. (The Fortress key will be held captive in the main line points machine)

6. Once the train has cleared the points, restore the main line points to the Normal position, restore the Selector lever to the ‘Motor’ position and remove the Fortress key.

7. Restore the Fortress key to its lock and turn it to the Right hand position.

8. Advise the Network Controller that the key has been restored.

Failure of EOL Key to Release
----------------------------------------

Should the EOL key fail to release following the completion of the above protocol, the services of a Signal Maintenance Technician must be obtained.

The protocols detailed above must be complied with prior to the key being manually withdrawn by the Signal Maintenance Technician.