The human contribution to accidents accounts for 70-80% within operations of each mode of transport. Human Reliability Analysis (HRA) estimates the extent to which human action and inaction can lead to hazardous events. It attempts to provide a complete description of the human contribution to risk and ways to reduce that risk. It is therefore, a very important aspect of transport safety. However, HRA techniques are currently hampered by limited information on human errors in current safety databases. Therefore, the challenge to improve HRA techniques is considerable.

Research in this theme enhances and refines existing HRA methods to better account for:

  • Human-machine and human-human interactions.
  • The influence of specific factors on people and their performance (e.g. fatigue or training).
  • The impact of repeated human behavioral degradations.
  • The possibility of combining prospective and retrospective analyses.
  • The quantitative prediction of human performance.

In addition to improving methods for quantifying decision errors, the work here will provide tools to support HRA analysis. For example, the impacts of fatigue and heavy workload on train drivers or pilots are quantified and remedial measures proposed.

Research Projects

Aviation

Railways