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Worker exposure to potential 6m fall - Coggle Diagram
Worker exposure to potential 6m fall
Why was worker exposed to potential fall?
Because they entered a restricted area with fall hazard
To take a shortcut through restricted area
To retrieve materials located on bridge
Why did this decision make sense to the worker?
Inconvenience of taking the long path around station
Knew material location due to prior shift
Motivated to help work commence on time
Misperceived fall risk due to previous experience and training in working at heights
Unpleasant hot and humid morning
Why did fall hazard exist?
Flooring work required some work at height
Work planned to be completed at ground level but could not be completed as planned
Risk profile changed due to change in work methodology
Rain delays and challenges with SCAS, and inability to install some landings due to lifting points in the way prompted change in work methodology
Change Management process may have been incomplete (
** but questionable bearing on outcomes of the day
)
SWMS not revised prior to task (*Not believed to be significant influencing factor)
Pre-start did not mention NAC working at height permit (* Not believed to be significant influencing factor)
Why was worker not prevented from entering restricted area?
Hard barrier removed by crew at start of day to enable works
Worker bypassed flagged EZ and remaining safe system of work
Not challenged by work crew or supervisor
Restricted area not visible by work crew
Work crew performing logistics in different area
Worker not assigned nor expected to be part of work at heights task
Safe system of work included: Permit, barrier, signage and flagging, fall protection and static line
Restricted work area under control of NAC