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24/06/2020

DB Rail Academy

Railway RAMSIntroduction and benefits

Agenda

DB Rail Academy | RAMS Nuggets | Eliana Masci | 24.06.2020 2

1. Why RAMS?2. Implication of RAMS3. Exercise

Why RAMS?

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The participants will know the RAMS acronym, they willknow that RAMS is about safety, performance and quality.

The participants will understand why RAMS is importantfor railway safety

The participants will know that railway RAMS is a systemsengineering approach according the V-cycle

DB Rail Academy | RAMS Nuggets | Eliana Masci | 24.06.2020

Definition

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1. Reliability is the ability to perform a specificfunction.

2. Availability is the ability to keep a functioning statein the given environment.

3. Maintainability is the ability to be timely and easilymaintained.

4. Safety is the ability not to harm people, theenvironment, or any assets during a whole life cycle.

DB Rail Academy | RAMS Nuggets | Eliana Masci | 24.06.2020

The systems engineering approach for railway RAMSThe V-cycle representation for validation & verification (V&V) tasks

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Source:EN 50126-1:2017

“Verification ensures youbuilt the system right.Validation ensures youbuilt the right system.”

DB Rail Academy | RAMS Nuggets | Eliana Masci | 24.06.2020

Benefits of RAMS

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Benefits

The RAMS allowsyou to demonstratethe system is safe

for the passengersand for the

environment

The RAMS allowsyou to reduce themaintenance costs

The RAMS allowsyou to monitor the

qualityperformance of

your system

The RAMS allowsyou to have a betterunderstanding ofthe behavior ofyour own system

DB Rail Academy | RAMS Nuggets | Eliana Masci | 24.06.2020

For what do we need RAMS?

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Assure that oursystem isRELIABLE

•Analyze if oursystem achievethe Reliabilitytargets (FailureRate < X)

Assure that oursystem isAVAILABLE

•Analyze if oursystem achievethe Availabiltytarget (e.g. 99,5%of availability)

Assure that oursystem isMAINTAINABLE

•Analyze if oursystem achievethe Maintenbilitytargets (MeanTime To Repair <X)

Assure that oursystem is SAFE

•Analyze if oursystem achievethe Safety targets(The safetytargets are not allQuantitative,they can be alsoQualitative)

DB Rail Academy | RAMS Nuggets | Eliana Masci | 24.06.2020

Implication of RAMS

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The participants will understand what is the process todetect Hazards.

The participants will have the knowledge to understandwhy is useful a Hazard Log.

DB Rail Academy | RAMS Nuggets | Eliana Masci | 24.06.2020

The Safety Process

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Make a Plan

Identify the possiblehazards and define

the Safetyrequirements

Perform specificanalysis FTA,

FMECA, IHA etc.

Look for possiblemitigations•Design, Validation,

Maintenance, Operation,Quality, etc.

Find the evidencesfor those mitigationsFINAL REPORT

EN 50126EN 50128EN 50129

The process is given by theCENELEC norms which aremandatory to apply inEurope

DB Rail Academy | RAMS Nuggets | Eliana Masci | 24.06.2020

Exercise

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The participants will get involve in the training preparingtheir own Hazard Log.

The participants will understand the basis of the HazardLog document.

DB Rail Academy | RAMS Nuggets | Eliana Masci | 24.06.2020

Elevator Hazard Log

DB Rail Academy | RAMS Nuggets | Eliana Masci | 24.06.2020 11

ID

Hazard Cause

Accident

*Criticality Pre

Mitigation *CriticalityPost

Evidence

Severity Frequency

Class

Conclusions

DB Rail Academy | RAMS Nuggets | Eliana Masci | 24.06.2020 12

All the different fields from railway need aRAM and Safety Analysis

RAMS applies to all life cycle phases of theproject

Is possible to make a predictive maintenanceif we understand the behavior of our system

A proper Safety Assessment it will not onlysafe lives, but also will save us money

Thank you so much foryour attention!