09-07-2018, 09:47 PM
Candidate 2's attempt
Question A2
On occasions the safety that is provided by signalling and operational telecommunications installations may be degraded, usually due to failure or intrusive maintenance.
Different methods of railway operation are frequently used as an alternative in these circumstances.
Describe three such methods of degraded working, indicating how an acceptable level of safety is maintained and state the residual risks when compared to normal working. [25 marks]
Question A2
On occasions the safety that is provided by signalling and operational telecommunications installations may be degraded, usually due to failure or intrusive maintenance.
Different methods of railway operation are frequently used as an alternative in these circumstances.
Describe three such methods of degraded working, indicating how an acceptable level of safety is maintained and state the residual risks when compared to normal working. [25 marks]
PJW