Int J Performability Eng ›› 2015, Vol. 11 ›› Issue (2): 107-120.doi: 10.23940/ijpe.15.2.p107.mag
• Original articles •
DOVILE RAMA and JOHN D. ANDREWS
In the railway industry asset management decisions are focused on the maintenance, enhancement and renewal of assets in order to ensure a required level of dependability and improvement in services at the lowest whole life costs. To achieve these objectives system lifecycle models, rather than individual asset models, offer a greater advantage. The paper presents a modelling approach developed for constructing multi-asset system models to support well-informed railway infrastructure asset management decisions. The models are built using the Petri Net formalism and are analysed by a means of Monte Carlo simulations. A specific example of the railway superstructure model is presented. Its simulation results demonstrate the superiority of the system-wide model against individual asset models in terms of its accuracy in predicting the superstructure (system) performance and information available to support asset management decisions. Furthermore, by using the multi-asset system model interdependencies among maintenance regimes of different assets and different parts of the infrastructure can be modelled.
DOVILE RAMA JOHN D. ANDREWS. A Holistic Approach to Railway Infrastructure Asset Management [J]. Int J Performability Eng, 2015, 11(2): 107-120.
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