Reliability, Availability, Maintainability and Safety (RAMS) plays an important role in the design of Railway systems including Metro rails. Punctuality is an important factor in a Metro rail project, and it depends mainly on the RAM factor. At the same time, Safety needs to be ensured in all aspects of the project. Moreover, Metro rail has additional safety requirements compared to the mainline operation on account of the close headway.
RAMS needs to be ensured by all subsystems and in all phases – design, implementation, operation, and maintenance. The overall RAM target needs to be specified in the RAM plan in terms of punctuality and delay tolerance. Similarly, the safety target needs to be specified in the Safety plan. These targets are then to be apportioned to different subsystems like Track, Rolling stock, Signal & Train control, etc.
This course aims to introduce to the participants, methods and tools for deciding on RAM and Safety targets, apportioning it to the different subsystems and conveying it to the respective vendors, monitoring vendors’ adherence to their specified targets during design and implementation, and present the RAM and Safety cases to the Independent Assessors. These methods and tools are based on the relevant RAM and Safety standards for Railway applications – CENELEC 50126, 50128 and 50129.
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