Reliability, availability, maintainability and safety (RAMS)

Reliability, availability, maintainability and safety (RAMS)

What is RAMS in the rail sector?

RAMS (reliability, availability, maintainability and safety) is a specialist discipline that focuses on delivering a perfect equilibrium between safety, performance and cost management in an engineering system.

It strives to improve railway operational efficiency by ensuring appropriate processes are in place to monitor performance and take proactive steps towards addressing emerging problems.

We help our clients apply RAMS techniques – as detailed in the international standard IEC 62278 - across every aspect of the rail industry, from manufacturing and integrating a new fleet of vehicles, to the day-to-day operations of an entire rail network.

How we will help you

Supported by industry tools such as FaultTree+ and AvSim, our teams will apply established rail safety management methods and analytical techniques to determine the reliability and availability of your systems. These techniques include failure modes, effects (and criticality) analysis; fault tree analysis; and reliability block diagrams.

Having assessed potential scenarios and their possible costs, we will help you design and implement sustainable long-term strategies that can reduce the risk of service failure and ensure your railway assets remain reliable, maintainable and available for use.

Sydney Trains Waratah (A Set)

What are the benefits of RAMS?

As a global business with experience of providing RAMS support to rail projects across North and South America, Europe, the Middle East, Asia and Australasia, we have a deep understanding of applying international best practice to local requirements in full compliance with recognised standards such as CENELEC EN50126 and IEC62278 and asset management standards required by ISO 55000.

With such extensive expertise available to your teams, you can be sure of expert support from the very outset of a project and throughout every stage of its lifecycle, with deliverables including:

  • RAMS requirement and plan
  • Hazard analyses for rail organisations
  • Safety integrity level analysis
  • Quantified risk assessment/fault tree analysis
  • Safety testing and verification plan and report
  • Safety case failure reporting and corrective action system (FRACAS) maintenance requirements analysis
  • Support to Independent Safety Assessor audits

Services related to Asset Management, Entity in Charge of Maintenance and ISO 55000 can be found in our Asset Optimisation pages. 

Systems integration for new bi-mode fleet

Systems integration for new bi-mode fleet

RAMS support was a major component of the advisory services Ricardo provided to Hitachi Rail Europe during 2012-1018 for the design and manufacture of a new fleet of bi-mode vehicles for the UK network.

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