PR S 40003 Flashcards
Derailment and major incidents
Signalling investigation steps
Providing initial notification, protecting the incident, initial inspection, assigning the signal engineer, gathering perishable evidence
Who needs to be notified in the case of a derailment
First the Signaller, then to ICON infrastructure, and then to the maintenance signal engineer (if the incident is suspected to be caused by the signalling system).
Whare are your priorities when attending a derailment
The safety of people or persons about the line. The protection of trains and/or users of level crossings. The protection of the state of the interlocking to preserve evidence.
What are the two network rules relating to reporting a CAN and managing a major incident.
NGE206 and NGE 208
What is a CAN
CAN stands for Condition Affecting Network.
This is where there is a situation on the network that can impact the safe running of trains.
How do you protect the site of a derailment
You book out immediate protecting signals to the obstruction. If any of those signals are in doubt, then the signals in the rear must be booked out and disconnected. Any signals that are affected by the obstruction to an overlap must be booked out and disconnected. Disconnection of equipment is only allowed for signalling equipment that is not in doubt or suspected as a contributing factor to the incident.
Signal engineer to be consulted first.
What must you do if you suspect signalling equipment has contributed to or caused the indicent.
You must treat it as an irregularity until proved otherwise by the signal engineer.
Can you interfere with or disturb the incident under any circumstance?
Yes if directed to by the Incident rail commander or emergency services personnel for safety reasons.
What type of evidence is the priority in the case of a derailment or incident, and give some examples
Perishable evidence.
Position of the sun, Weather conditions, contaminated rail surface.
Who needs to be in attendance when conducting the initial investigation, provide some examples
a suitable independent witness. this can be anyone independent to the discipline and not involved in the incident, such as , IRC, emergency services personnel, station master, safety representative.
If a new engineer is assigned during the investigation process what needs to happen
The investigating signal engineer must handover all information and evidence collected to the new investigating signal engineer.
list some tasks to be carried out by the investigating signal engineer
Immediately attend and control signalling resources,
ensure protection is adequate,
manage provision of alternate signalling arrangements,
control evidence gathering, carry out testing and certification.
After protection and notification is established, what needs to happen during the detailed inspection
It shall be treated as an irregularity, inspection and examination to be conducted under a signal engineers guidance all done in the presence of an independent witness. prioritise the collection of perishable evidence.
what can you use to collect evidence
camera, video recorders, voice recorders, pen and paper to take notes.
what are 5 examples of evidence to be collected
State of signalling panel including position of levers, routes set and indications.
damaged equipment.
fresh strike marks on trainstops
point of detachment.
position of points , FPL and detectors.
the state of the interlocking, position of relays or inputs/outputs.
telemetry, replays and signalling logs.
Front of train footage
CCTV.
