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Rail & Transit
Freight and passenger rail signaling, train control, and transit systems.
Standards for this industry
EN50126
Railway RAMS
Specification and demonstration of Reliability, Availability, Maintainability and Safety for railway applications.
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EN50128
Railway Software
Software for railway control and protection systems, defining software SIL requirements and lifecycle.
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EN50129
Railway Signaling Safety Cases
Safety-related electronic systems for railway signaling, including the structure of the safety case.
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IEEE1474
CBTC Performance and Functional Requirements
Communications-Based Train Control performance, functional, and interface requirements.
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49CFR 236
PTC - Positive Train Control Regulations
US federal regulations governing Positive Train Control systems, including PTCSP safety plans.
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Rail & Transit Functional Safety Professionals
Jeff Twombly, PEExecutive, Rail SafetyProvides executive and technical leadership for rail-safety programs, assessments, and complex transit-system work. His experience spans safety assurance, transportation-safety leadership, signaling, and independent review.TH
Tim HeywoodPrincipal Safety EngineerBrings more than 25 years of rail-industry experience in safety and reliability analysis and in the design and implementation of safety-critical signaling and train-control systems.
Ken JacksonPrincipal Safety EngineerBrings senior safety-engineering and research experience to complex rail and transportation analysis, assurance, and program-leadership work.Rail & Transit Training
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