Expert judgement is a core part of the scoring process when assessing risk in a diverse harbour, which can result in some subjectivity. In the case of DPoP, incident data is available and its review assists significantly in providing consistency of scoring. The populated Hazman software allows for programmed review of hazards, based on the ranking priority and the presence of heightened risk scoring in any of the individual risk categories.
Scoring of hazards was undertaken using the “most-likely” and “worst-credible” approach to consequence assessment. The scoring meeting participants used the Matrix presented at Annex A both as a basis to consider outcomes that had occurred and outcomes of the same accident realisation that would represent the “worst credible” case. The local knowledge of DPoP is vital to provide a consistency of consequence assessment and the “worst-credible” scoring should be clearly differentiated from the “worst-possible” case.