Review Based Study On Risk Management Model For High Speed Indian Railway System

AMIT GARG, Dr. SUMEET GUPTA

Abstract


In this paper, a framework for risk management at railways has been studied and integrated into global safety management system of railways. Furthermore we studied how it was applied to a manually controlled full barrier road rail level crossing in Morocco. We studied different aspects that should be considered during the system definition phase where we suggested using functional diagrams for modeling operations at LC from the perspective of LC actors. It is a critical part for risk management and specifically for hazard identification where we provided different techniques that can be used; our experience shows that involvement of all stakeholders is a prerequisite to the success to this phase. Initiating events can be unveiled through brainstorming sessions and FTA can model complex interactions of events that have the potential to lead to accidents. Risk analysis can then be carried out provided that historical LC accident and incident data is available to estimate frequencies and consequences; ETA is the ideal tool for estimating consequences of hazards due to multiple causes. The existing risks are then classified and decisions are made regarding their tolerability, the ALARP principle can serve this purpose. A cost benefit analysis then helps prioritize risk treatment actions that should target intolerable risks. Control mechanisms should be also put in place to assess, monitor and review the risk control actions put in place. Finally, it is emphasized on the importance of having a database of historical accidents and incidents at LC for the success and efficiency for the suggested framework. Accidents at level crossings are the result of complex interactions between factors arising from the design and operations of level crossings. An important first step towards eliminating the causes of these accidents is thru understanding and assessing the risks associated with a given level crossing and acting on them. This paper presents review based study on risk management framework that serves this purpose.


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