| Summary: | The analysis of the reliability and availability of the data transmission
system within the integral railway system is realized through the modeling
of the system, i.e. its conditions and their connections. According to the
defined measure of safety of the International union of railways (UIC), i.e.
its committee ORE, defined by recommendations A 158 and A 124/RP,
based on previous experience and the achieved level of technical
development, we can estimate an acceptable value for the probabilities of
certain conditions of the integral railway system and data transmission
system. In the paper, the reliability and availability analysis was modeled
using the Markov model for data transmission in the railway system with
four conditions, for: correct system condition, presence of disturbances in
the system, illegal (dangerous) system condition and system blocking
condition. The validity for the application of process development modeling
the reliability and availability of data transmission in the railway system will
contribute to reducing the risk of inadmissible (dangerous) failures,
improving maintenance planning and spare parts planning, moving from
maintenance by time to maintenance by condition and reducing
exploitation costs.
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