Wrong Direction Movements Flashcards
(25 cards)
What is a wrong direction movement?
An unsignalled movement on a unidirectional line.
Will TPWS still be functional when making a wrong direction movement? Why or why not?
TPWS will not be functional because the train would pass over the trigger loop before the arming loop, and pass over train stop loops before the signal associated with it.
Will AWS still be functional when making a wrong direction movement? Why or why not?
AWS may be suppressed but if it hasn’t, you will only receive warning horns. These warning horns will not apply to you and can be cancelled rather than acknowledged.
What speed should you travel at whilst performing a wrong direction movement?
You should proceed at caution (at a safe reduced speed), being able to stop within the distance ahead that you can see to be clear.
What information do you need to receive from the signaller before you can carry out a wrong direction movement?
• Purpose of the movement.
• Point the movement starts and ends.
• Points and junctions to be checked and set correctly (including catch points).
• Proceed at caution.
• Passing level crossings arrangements.
What should you do if the stopping point of the wrong direction movement is a location that might be difficult to identify?
Agree with the signaller that you will make the movement as far as a location that you can easily identify, e.g. a station, tunnel, level crossing or junction. Once you arrive at the location, contact the signaller again for further instructions.
When can a driver that has overrun a station platform make a wrong direction movement?
Only if the train did not overrun the platform by more than 400m.
What should you do if you overrun a station platform?
- Apply the emergency brake.
- Give 2-2 to the guard to prevent them opening the doors and allowing passengers to alight.
- Contact the signaller via urgent call and answer their questions about the incident (e.g. how far past the platform you are, are there any doors on the platform, what happened and why- driver error, low adhesion, poor visibility, equipment failure, etc).
- Call the duty control manager (only necessary for PQA and development plan drivers).
- Once the signaller authorises, change ends and perform a WDM. There is no need to change head and tail lamps.
What is an SSI/P?
Station stopping incident- protected. This is when there has been a station overrun but the driver gave 2-2 to the guard and the doors were kept closed to prevent passengers alighting. Whilst this is an inconvenience, it isn’t as much of a safety risk.
What is an SSI/UP?
Station stopping incident- unprotected. This is when there has been a station overrun but the guard has released the doors for passengers to alight anyway. This is both an inconvenience and a safety risk.
What would happen if a driver had to make a wrong direction movement due to being wrong routed at a junction?
- Stop the train immediately.
- Contact the signaller via urgent call.
- Contact duty control manager.
When authorised to do so, before making the WDM:
• Change ends.
• Change the head and tail lamps.
• Check the points are set correctly.
You can make a WDM even if you don’t sign the route (though you can also refuse). If the routes eventually converge and you sign both, you may be asked to continue in the normal direction of travel.
Who would be at fault for having to make a wrong direction movement having been wrong routed at a junction?
Both the signaller and driver would be at fault- the signaller for setting the wrong route and the driver for accepting it.
What two categories can wrong routes at a junction be divided into?
• Wrong route offered- not taken.
• Wrong route offered- taken.
Why would a train with defective driving controls need to make a wrong direction movement?
The train may need to make a WDM if it can’t proceed due to a failure, for example the BCCB tripping (operate EBS) or TCCB tripping (operate EBS and TIS). Alternatively, another train may need to make a WDM to couple to the front of the failed train and continue in the normal direction of travel.
Name the reasons why a driver may be given authority to make a WDM?
Wrong route taken at junction.
Grinder train returns to extinguish fire.
Ground frame- shunting movements to set back through points.
Overrunning a platform.
Obstruction- train to set back from.
Divided train- front returns to rear.
Single line working applies.
Assistance to front of failed train.
Failed unit can’t be driven from leading cab.
Engineering train or OTM to move to/from possession, to/from worksite, within a protection zone.
Why would a rail-grinding train need to make a wrong direction movement?
Rail-grinding trains are used to clean the railhead, but in doing create sparks that can cause lineside fires in dry conditions. The rail-grinding train may need to make a WDM to extinguish a fire it has created by throwing sand over it.
When would an engineering train need to make a wrong direction movement?
• Moving towards or from a line under possession.
• Making movements within a protection zone.
• On-track machine (OTM) is to return to or from the published start mileage point.
Explain the actions a driver should take during a wrong direction movement.
• Follow signaller’s instructions and reach a clear understanding.
• Be able to stop within the distance you can see to be clear.
• Ensure points are secured and proceed over them at a maximum of 15mph unless instructed otherwise.
• Disregard and cancel any AWS warnings.
• Approach cautiously and make sure it’s safe to pass over any automatic level crossing or barrow crossing.
• Stop and sound horn before proceeding over R/G crossings.
Explain how to make a wrong direction movement over an AHBC.
A wrong direction speed board would be positioned on the approach to the crossing, indicating the maximum speed at which you can approach it. The WDM would have to commence before the speed board, otherwise the LC would be operated under local control using a local attendant. If the LC doesn’t have wrong direction controls, it would again need to be operated using a local attendant.
The deactivation treadle would become the activation treadle, operating the LC equipment as your train passed over it, which would then be reset after passing over the activation treadle. Because of the reduced distance between the activation treadle and the LC, the speed board would display a lower speed than in the normal direction of travel to allow for enough time to warn road users of approaching trains.
What should you do when approaching a whistle board whilst making a WDM?
You should still sound your horn to give advance warning of your train approaching to crossing users.
Explain how to make a wrong direction movement over an ABCL or AOCL.
The crossing may have wrong direction controls or an emergency plunger. Make sure that the crossing is clear, sound the horn continuously until the front of the train is on the crossing, then exit the crossing as soon as possible.
What should you do if the signaller tells you that a local attendant will be provided at the crossing?
Wait for the local attendant to arrive (no matter how long this takes) and do not pass over the crossing until you receive a green hand signal from them.
What are some risks associated with performing a wrong direction movement?
• SPADs.
• Points not being set correctly.
• Collisions.
• Miscommunication, e.g. proceeding too far in the wrong direction.
• Guards opening doors on the wrong side of the platform.
• Increases the risk of station overrun and difficulty of knowing when to stop.
Explain how to make a wrong direction movement over a controlled crossing.
- Stop adjacent to the signal on the opposite line and follow the signaller’s instructions.
- When authorised, approach at caution.
- Cross over when safe to do so or (if a local attendant has been provided) when you receive a green hand signal.
