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Table 5 Rating the likelihood and consequence of identified threats

From: Managing project risks and uncertainties

Likelihood Score Consequence
Very unlikely 1 Minor (not detectable)
Fairly unlikely 2 Low (just detectable)
50/50 chance 3 Moderate (affects stress or safety or economics)
Fairly likely 4 High (affects health or well-being or sustainability)
Very likely 5 Very high (life threatening or non-sustainable or legally controlled or socially unacceptable)