scope:

This process specifies the hazard index system for the management of safety related reports for all telecommunications failures.

This process applies to:

a) People who manage safety related reports of telecommunications failures.

b) Telecom equipment provided for railway operational purposes. 

c) Equipment and services provided by Network Rail Company or third parties (including bought in equipment or services).

d) Equipment not belonging to Network Rail or away from Network Rail infrastructure which Network Rail agrees to manage.

e) Failures raised on/after the compliance date.

Purpose

This supports Railway Group Standard RIS-0707-CCS, Management of Safety Related Control, Command and Signalling (CCS) System Failures.

The hazard index system supports the unified national system of classification and review of safety related failures of signalling and telecommunications requirement specified in NR/L2/SIG/10047.