This training on “Functional Safety in the Rail Industry” is a one-day introduction to the individual CENELEC standards, designed to provide a general overview and outline the main planning activities in safety-related rail development. EN 50126 focuses on aspects of RAMS, influencing factors and risk assessment

Course coverage

• Introduction to System Safety, General principles and requirements of risk management
• Need for Safety and Reliability in the Railway Domain and Need for the safety standards
• Definitions and abbreviations of the commonly used terminologies in the standard - Examples for the definitions in the Railway Domain
• Railway RAMS - Quality of Service Railway RAMS
• Risk Analysis - Risk evaluation in terms of Safety Integrity Level (SIL)
• Risk Evaluation / Acceptance, Fail Safe Concept
• Elements of Railway RAMS, Interrelationship between Railway RAMS Elements
• Technical Concept of Reliability and Safety
• Failure effects within the System, Cause and Effect Diagrams in Failure analysis (Example in Railway domain)
• Influencing factors of RAMS - Categories - Management of factors
• RAMS Life-cycle various phases, details in terms of input requirements, tasks to be carried out and the expected output for each life cycle phase

• Scope of EN 50128 as applied to Software (SW)
• Software Safety Route Map- Relationship between generic system development and Application development
• Definitions as applicable to SW safety
• Assigning SW Safety Integrity Level (SIL) using general process described in EN 50126
• Competence and Responsibilities of personnel carrying out SW Safety activities.
• Level of independence v/s SIL for SW Design / Implementation SW verification / validation
• SW Requirement Specification – Required properties
• SW Architecture Techniques / Methods v/s SIL
• SW design and Implementation - Techniques / Methods v/s SIL
• Techniques used in building Safety critical SW (As given in Annex B of the standard)
• Certification requirement of Tools used in SW development / Testing
• SW verification / Testing Techniques /Methods Vs SIL
• SW / HW Integration
• SW Validation Techniques / Methods v/s SIL
• SW Assessment - SW assessment Report
• SW Quality Assurance
• SW Maintenance
• Systems Configured by Application Data

This traning focuses on  “System and Hardware Assessment” provides an introduction to the requirements of safety-related hardware development.

Details on RAMS analysis such as Reliability Block Diagram, Functional Block Diagram, Reliability Apportionment, Prediction, FMEA, FTA, Availability and Maintainability analysis with examples

• Safety Acceptance and Approval Process
• Evidence of Quality Management, Safety management, Functional and Technical Safety
• Safety life-cycle
• Safety Management - Review, verification / validation process, level of independence in review, verification / validation and assessment process
• Safety Plan, Hazard and Risk analysis with SIL determination
• Safety Design
• Evidence of Functional and Technical Safety
• Safety Acceptance and Approval process
• Dependencies between Safety Assessment and Safety Approval Process

Duration: 2 Days

• Introduction
• Scope
• Functional Steps in the application of EN  50657
• Identification of Safety related SW in the system and the SIL
• Software management and organization
• V-Model
• Software Assurance & assessment
• Software Development
• Development of Software configured by application data
• Software deployment and maintenance

Duration: 1 day