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All Outputs (67)

Optimising Rail Replacement Bus Services During Infrastructure Possessions (2019)
Journal Article
Meesit, R., & Andrews, J. (2019). Optimising Rail Replacement Bus Services During Infrastructure Possessions. Infrastructure Asset Management, https://doi.org/10.1680/jinam.18.00042

Providing rail-replacement bus services is a common strategy applied to handle track blockage situations in railway networks. Previously, a great deal of research has focused on modelling this strategy, particularly in the case of unplanned disruptio... Read More about Optimising Rail Replacement Bus Services During Infrastructure Possessions.

Sensor selection for fault diagnostics using performance metric (2018)
Journal Article
Andrews, J., Reeves, J., Reeves, J., Remenyte-Prescott, R., & Andrews, J. (2018). Sensor selection for fault diagnostics using performance metric. Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, 233(4), 537-552. https://doi.org/10.1177/1748006X18804690

As technology advances, modern systems are becoming increasingly complex, consisting of large numbers of components, and therefore large numbers of potential component failures. These component failures can result in reduced system performance, or ev... Read More about Sensor selection for fault diagnostics using performance metric.

A sensor selection method using a performance metric for phased missions of aircraft fuel systems (2018)
Journal Article
Reeves, J., Remenyte-Prescott, R., Andrews, J., & Thorley, P. (2018). A sensor selection method using a performance metric for phased missions of aircraft fuel systems. Reliability Engineering and System Safety, https://doi.org/10.1016/j.ress.2018.07.029

Component failures in complex systems, such as aircraft fuel systems, can have catastrophic effects on system performance. There are a large number of components in these systems, each with a number of different failure modes, some of which can cause... Read More about A sensor selection method using a performance metric for phased missions of aircraft fuel systems.

Vulnerability assessment modelling for railway networks (2018)
Presentation / Conference Contribution
Meesit, R., & Andrews, J. (2018). Vulnerability assessment modelling for railway networks. In Proceedings of the 10th IMA International Conference on Modelling in Industrial Maintenance and Reliability. https://doi.org/10.19124/ima.2018.001.16

Railway networks are prone to many different potential disruptive events such as technical failures (e.g. the failure of aging components), natural disasters (e.g. flooding) and intentional man-made disasters (e.g. trespass and suicide). Assessing th... Read More about Vulnerability assessment modelling for railway networks.

A Petri Net-based life cycle cost analysis approach (2018)
Journal Article
Kilsby, P., Remenyte-Prescott, R., & Andrews, J. (2019). A Petri Net-based life cycle cost analysis approach. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 233(1), 90-102. https://doi.org/10.1177/0954409718780106

Railway infrastructure providers, such as Network Rail, who owns and manages the British railway infrastructure, can improve the performance and reduce the life cycle cost of their assets through delivering effective asset management. Having the capa... Read More about A Petri Net-based life cycle cost analysis approach.

A new paradigm for uncertain knowledge representation by Plausible Petri nets (2018)
Journal Article
Chiachío, M., Chiachío, J., Prescott, D., & Andrews, J. (2018). A new paradigm for uncertain knowledge representation by Plausible Petri nets. Information Sciences, 453, https://doi.org/10.1016/j.ins.2018.04.029

This paper presents a new model for Petri nets (PNs) which combines PN principles with the foundations of information theory for uncertain knowledge representation. The resulting framework has been named Plausible Petri nets (PPNs). The main feature... Read More about A new paradigm for uncertain knowledge representation by Plausible Petri nets.

Delayed maintenance modelling considering speed restriction for a railway section (2017)
Journal Article
Shang, H., Berenguer, C., & Andrews, J. (in press). Delayed maintenance modelling considering speed restriction for a railway section. Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, 231(4), https://doi.org/10.1177/1748006X17709200

The deterioration of track geometry depends on several factors of which the speed of the train is one. Imposing a speed restriction can slow down the track deterioration and allows a longer survival time before a serious condition is achieved. Preven... Read More about Delayed maintenance modelling considering speed restriction for a railway section.

A new algorithm for prognostics using subset simulation (2017)
Journal Article
Chiachío, M., Chiachío, J., Sankararaman, S., Goebel, K., & Andrews, J. (2017). A new algorithm for prognostics using subset simulation. Reliability Engineering and System Safety, 168, https://doi.org/10.1016/j.ress.2017.05.042

This work presents an efficient computational framework for prognostics by combining the particle filter-based prognostics principles with the technique of Subset Simulation, first developed in S.K. Au and J.L. Beck [Probabilistic Engrg. Mech., 16 (2... Read More about A new algorithm for prognostics using subset simulation.

A sensor selection method for fault diagnostics (2017)
Book Chapter
Reeves, J., Remenyte-Prescott, R., & Andrews, J. (2017). A sensor selection method for fault diagnostics. In Safety and Reliability – Theory and Application: ESREL 2017. CRC Press

In the modern world, systems are becoming increasingly complex, consisting of large numbers of components and their failures. In order to monitor system performance and to detect faults and diagnose failures, sensors can be used. However, using senso... Read More about A sensor selection method for fault diagnostics.

A modelling approach for railway overhead line equipment asset management (2017)
Journal Article
Kilsby, P., Remenyte-Prescott, R., & Andrews, J. (2017). A modelling approach for railway overhead line equipment asset management. Reliability Engineering and System Safety, 168, 326-337. https://doi.org/10.1016/j.ress.2017.02.012

© 2017 Elsevier Ltd The Overhead Line Equipment (OLE) is a critical sub-system of the 25 kV AC overhead railway electrification system. If OLE asset management strategies can be evaluated using a whole lifecycle cost analysis that considers degradati... Read More about A modelling approach for railway overhead line equipment asset management.

System design and maintenance modelling for safety in extended life operation (2017)
Journal Article
Andrews, J., & Fecarotti, C. (in press). System design and maintenance modelling for safety in extended life operation. Reliability Engineering and System Safety, 163, https://doi.org/10.1016/j.ress.2017.01.024

It is frequently the most cost effective option to operate systems and infrastructure over an extended life period rather than enter a new build programme. The condition and performance of existing systems operated beyond their originally intended de... Read More about System design and maintenance modelling for safety in extended life operation.

An information theoretic approach for knowledge representation using Petri nets (2016)
Presentation / Conference Contribution
Chiachío, M., Chiachío, J., Prescott, D., & Andrews, J. (2016). An information theoretic approach for knowledge representation using Petri nets.

A new hybrid approach for Petri nets (PNs) is proposed in this paper by combining the PNs principles with the foundations of information theory for knowledge representation. The resulting PNs have been named Plausible Petri nets (PPNs) mainly because... Read More about An information theoretic approach for knowledge representation using Petri nets.

A Petri net approach for performance modelling of polymer electrolyte membrane fuel cell systems (2016)
Journal Article
Fecarotti, C., Andrews, J., & Chen, R. (2016). A Petri net approach for performance modelling of polymer electrolyte membrane fuel cell systems. International Journal of Hydrogen Energy, 41(28), 12242-12260. https://doi.org/10.1016/j.ijhydene.2016.05.138

© 2016 The Authors Fuel cells are promising technologies for zero-emission energy conversion and power generation. However, durability and reliability are among the main barriers to their commercialisation. Clearly the system performance depends on t... Read More about A Petri net approach for performance modelling of polymer electrolyte membrane fuel cell systems.

Road maintenance planning using network flow modelling (2015)
Journal Article
Yang, C., Remenyte-Prescott, R., & Andrews, J. (in press). Road maintenance planning using network flow modelling. IMA Journal of Management Mathematics, https://doi.org/10.1093/imaman/dpv031

This paper presents a road maintenance planning model that can be used to balance out maintenance cost and road user cost, since performing road maintenance at night can be convenient for road users but costly for highway agency. Based on the platfor... Read More about Road maintenance planning using network flow modelling.

Application of network traffic flow model to road maintenance (2015)
Journal Article
Yang, C., Remenyte-Prescott, R., & Andrews, J. (2015). Application of network traffic flow model to road maintenance. Proceedings of the ICE - Transport, 168(3), https://doi.org/10.1680/tran.13.00067

The study shows how the evolution of two-way traffic flows on a local highway network can be predicted over time using a network-level traffic flow model (NTFM) to model both urban and motorway road networks. After a brief review of the main principl... Read More about Application of network traffic flow model to road maintenance.

A stochastic model for railway track asset management (2014)
Journal Article
Andrews, J., Prescott, D., & De Rozières, F. (2014). A stochastic model for railway track asset management. Reliability Engineering and System Safety, 130, https://doi.org/10.1016/j.ress.2014.04.021

The determination of the strategy to ensure that the geometry for railway track is kept within acceptable limits, in a cost effective manner, is a complex process. It requires the simultaneous consideration of the activities which govern inspection,... Read More about A stochastic model for railway track asset management.

Road network modelling for maintenance planning (2014)
Presentation / Conference Contribution
Yang, C., Remenyte-Prescott, R., & Andrews, J. (2014). Road network modelling for maintenance planning.

In this paper a novel road network flow model is presented, suitable for modelling both motor-way and urban roads. A road network is modelled using a directed graph, consisting of typical roads and junctions, with different traffic flow inputs throug... Read More about Road network modelling for maintenance planning.

A Petri net approach to fault verification in phased mission systems using the standard deviation technique (2014)
Journal Article
Lloyd, M. D., Andrews, J., Remenyte-Prescott, R., Pearson, J. T., & Hubbard, P. (2014). A Petri net approach to fault verification in phased mission systems using the standard deviation technique. Quality and Reliability Engineering International, 30(1), https://doi.org/10.1002/qre.1478

Health management systems are now standard aspects of complex systems. They monitor the behaviour
of components and sub-systems and in the event of unexpected system behaviour diagnose faults that
have occurred. Although this process should reduce... Read More about A Petri net approach to fault verification in phased mission systems using the standard deviation technique.

A network traffic flow model for motorway and urban highways (2013)
Journal Article
Yang, C., Remenyte-Prescott, R., & Andrews, J. (2014). A network traffic flow model for motorway and urban highways. Journal of the Operational Research Society, 65(8), https://doi.org/10.1057/jors.2013.86

The research reported in this paper develops a network level traffic flow model (NTFM) which is applicable for both motorway and urban roads. It forecasts the traffic flow rates, queue propagation at the junctions and travel delays through the networ... Read More about A network traffic flow model for motorway and urban highways.