Defective or isolated vehicles and on-train equipment TW5 Flashcards
Driver reporting a defect.
When do you need to stop the train immediately?
• air suspension
• automatic warning system (AWS)
• axle boxes
• brakes
• brake Continuity
• doors if they cannot be closed
• driver’s safety device (DSD)
• driver’s vigilance equipment
• driving cab window - broken or obscured
• driving controls
• external orange hazard lights
• headlights or tail lights
• lifeguards
• sanding equipment - if you believe you may have difficulty
stopping the train if it continues in service
• selective door-opening - if you consider this may be due to
defective lineside equipment
• speedometer
• traction interlock switch (TIS)
• train protection and warning system (TPWS)
• warning horn - complete failure
• wheel slide protection - if you believe you may have difficulty
stopping the train if it continues in service
Driver reporting a defect.
You must tell the signaller at the first convenient opportunity
- axle boxes
- doors unless they cannot be closed
- driver’s reminder appliance
- on-train data recorder
- public address system on DO trains
- sanding equipment - unless you believe you may have difficulty stopping the train if it continues in service
- selective door-opening - unless you consider this may be due to defective lineside equipment
- warning horn - partial failure
- wheel slide protection - unless you believe you may have difficulty stopping the train if it continues in service.
If possible, you must avoid stopping the train:
• on a viaduct
• in a tunnel
• at the entrance to a station
• on or near points until the last vehicle of the train is clear
• on a level crossing
• at any other place where it might be difficult to deal with the
situation.
If the train stops out of course or might not be able to depart on time,
you must tell the signaller immediately.
After reporting the defect you must make sure you receive instructions on how the defect is to be dealt with and the arrangements for further movement.
When AWS, TPWS, DSD or driver’s vigilance equipment fails, or if the windscreen becomes broken or obscured who must travel with you?
A competent person
Whilst driving with defective or isolated AWS or TPWS with a competent person, when approaching a signal or a speed restriction, the driver must:
- call out the signal aspect or indications to the competent person
- give a commentary on the speed reduction on the approach to cautionary and stop aspects.
On the approach to speed restrictions, you must tell the competent person that you are applying the brakes to observe the restriction.
Whilst driving with defective or isolated AWS or TPWS, when approaching a signal or a speed restriction, the competent person must:
- have the required route knowledge for the entire route
- acknowledge the driver’s reaction to signal aspects, sequences or indications
- if necessary, remind the driver of a signal displaying a cautionary or stop aspect
- acknowledge the driver’s reaction to speed restrictions
- if necessary, remind the driver of the speed restriction ahead.
Competent person: Broken or obscured windscreen
- have the required knowledge for the entire route over which you have to accompany the driver
- help and advise the driver with sighting signals, speed restrictions, lineside signs, stations, level crossings and anything else on the line which the driver needs to be aware of.
With defective or isolated DSD or driver’s vigilance equipment, what are the duties of the driver and the competent person?
Driver:
Point out and explain to the competent person the equipment needed for stopping the train in an emergency.
Competent person:
You must understand how to stop the train in an emergency.
If the driver becomes unable to drive, you must stop the train immediately, and tell the signaller.
If the AWS is defective or isolated whats the maximum speed can you drive
Without competent person
40 mph
With competent person
Line speed. In poor visibility 40 mph
