Tillgänglighetsanalys för Gävle tågledningscentral
This diploma work deals with a reliability analysis of the
train manouvring system which will be delivered to Banverket
by Adtranz Signal. A model, in the shape of a fault tree, of
the train manouvring system has been made. The analysis has
been performed with the software RiskSpectrum. This work has
also resulted in a method which Adtranz will be able to use
in the future when designing systems. The software in the system
has not been analysed. It is the hardware and handling mistakes
that have been considered.
The result of the analysis was that the reliability is good.
If changes are to be made, it is serverparts, especially hard
discs and networkparts, hubs and repeaters, that shall be improved.
There are also parts which could deteriorate, if savings are made,
without deterioration of the total reliability. This applies
especially to the different parts at the operator sites, but also
to switches, cooling fans, X.25-switches, communication cards,
power supply units and power supply units to hubs. The handling
mistakes that have any influence are those made by technicians.
Rolf Stankovic
1997
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Last updated: 2021-11-10
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