@article { , title = {A holistic approach to railway infrastructure asset management}, abstract = {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.}, eissn = {0973-1318}, issue = {2}, journal = {International Journal of Performability Engineering}, publicationstatus = {Published}, url = {https://nottingham-repository.worktribe.com/output/746459}, volume = {11}, keyword = {Railway infrastructure, asset management, system-wide models, Petri Nets}, year = {2015}, author = {Rama, Dovile and Andrews, John D.} }