Designing for RAM in Railway Systems: An Application to the Railway Signaling Subsystem

Authored by: Pierre Dersin , Alban Péronne , René Valenzuela

Handbook of RAMS in Railway Systems

Print publication date:  March  2018
Online publication date:  March  2018

Print ISBN: 9781138035126
eBook ISBN: 9781315269351
Adobe ISBN:


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The topic dealt with in this chapter is optimizing the availability of a subset of the rail signaling system while keeping the life cycle cost (LCC) reasonable. Decision variables are related to design, maintenance, and operations. Maintenance policies include purely corrective, purely preventive (systematic), and mixed maintenance. The motivation has been onboard network applications in high-speed trains, but the results are of a wider applicability. Two types of network architecture (multifunction vehicle bus and Ethernet ring) are compared from a reliability, availability, and maintainability point of view, using the following steady-state performance measures:

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