Comment on “the use of quantitative risk criteria in hazard analysis” by S.B. Gibson

Abstract Green, C.H. and Brown, R.A., 1977. Comment on “The use of quantitative risk criteria in hazard analysis” by S.B. Gibson. Journal of Occupational Accidents, 1: 265–271. While broadly agreeing with Gibson's approach, we suggest that his methodology is unvalidated; and also that other research results and theoretical considerations indicate that the approach should be used with caution.