The requirement for a workload assessment may come from a number of different sources:
- A request from the line manager or local signalling inspector, usually following
complaints or concerns from employees about the workload at a location
- A request from a health and safety representative
- A request from a Project involving a signalling upgrade, equipment renewal or enhancement,
transfer of additional infrastructure and/or introduction of new operating procedures
- Following an investigation into an incident
- In the course of a regular ergonomics audit or visit
- As a result to changes in the operating environment such as timetable changes, additional
infrastructure to operate or traffic or service level changes