Safety Considerations by Synergy of HAZOP/DMRA with Safety Color Maps—Applications on: A Crude-Oil Processing Industry/a Gas Transportation System

Abstract

A collaborative framework by the synergy of Hazard and Operability (HAZOP) process and the Decision-Matrix Risk Assessment (DMRA) in association with safety-color mapping (SCM) is presented, in order to identify critical points and prioritize risks, and also to visualize the occupational safety and health (OSH) situation, at the workplaces (i) of a sour crude-oil processing industry (SCOPI), and (ii) of a measurement and regulatory station (MRS) in a gas transportation system (GTS), situated in Greece. Firstly, the conventional HAZOP analysis is executed in order to identify the potential fault causes of abnormal conditions (deviations) in the plants. The application of the DMRA-modus is valuable to rank the identified risks (hierarchy of risks). In view of the results, both of the HAZOP pattern (for identifying the hazards) and also the DMRA one (for assessing and ranking the risks), SCMs have been derived for the specific workplaces of the SCOPI and the MRS/GTS station, which could be a precious means for safety managers to appraise the urgency of investing limited budgets in measures preventing particular types of deviations, and also protecting the employees.

Risk Assessment in Industry Using Expected Utility: An Application to Accidents’ Risk Analysis

“…The values for C are determined based on the classification of different risk categories by assigning a value between 0 (negligible impact) and 1 (high or catastrophic impact) to C. This classification can be performed by experts in the various technological areas and several tables with decision criteria have been developed to facilitate the assessment and to evaluate the consequences of risk (see e.g. [5], [6], [7], [8], [9]). Some tables, for example, consist of 4 risk categories: catastrophic, critical, marginal, negligible and the risk factor RF ranges then between 0 and 1, where 0 means that there is no risk and 1 means that there is a high or maximal risk [9].…”