QRC-AQualitative Risk Categories and Actions “to be applied against each category”. Qualitative categories of risks with the consequent actions to be applied for each category for the purpose of protection: “Negligible” (negligible, acceptable without corrective action), “Tolerable” (tolerable, acceptable with adequate protection and in agreement with the Railway AuthorityDepartment for the general responsibility towards the Safety...) , “Undesirable” (undesirable, acceptable only if the riskIn safe systems, it indicates the combination of the frequen... reduction is impractical and in agreement with the railway AuthorityDepartment for the general responsibility towards the Safety...), “Intolerable” (not tolerable, must be eliminated). See Preliminary Hazard AnalysisPHA. Preliminary hazard analysis. Activity carried out in th... (PHAPreliminary Hazard Analysis)
