Formal Safety Assessments
Marex can carry out the following formal safety assessments as part of the safety case associated documentation or as stand-alone assessments.
The Marex human factors trained team, including highly experienced certified personnel, perform a range of human factors assessments, including:
– Safety critical task analyses (SCTAs) – this method could be used to provide a demonstration that the major hazard analysis for the installation has considered people as both a key element in safe operation and as a potential cause of major accidents and their escalation. Hierarchical task analysis (HTA) is used for systematically documenting tasks to provide a basis for risk assessment. Subsequently, Human reliability analysis (HRA) is used to analyse the steps in the task analysis developed using HTA to identify possible human failure modes. The consequences of these errors are then explored, and if these are severe, appropriate error prevention strategies should be developed.
– Control room analyses – to assess the ergonomics of key control stations of an installation including control room HMI assessments and alarm optimisation assessments. The assessments are carried out against industry standards, guidance and good practice.
– General human factors assessments – based on UK Health and Safety Executive’s (HSE) guidance ‘Reducing error and influencing behaviour’ (HSG48) to identify and analyse the general impact of human error and behaviour on the workplace health and safety, and how workers’ physical and mental health can be affected by ergonomics and organisational factors.