ACHILLES: handling uncertainty in railway earthworks maintenance and renewals
ACHILLES: handling uncertainty in railway earthworks maintenance and renewals
Earthworks around the world, many of which date from the 19th century, are subject to the combined impacts of ageing and increasingly extreme weather conditions, increasing the need for condition monitoring, maintenance and enhancement within limited budgets. The ACHILLES research programme is addressing these challenges, developing improved understanding of earthworks behaviour, methods of monitoring, simulation and modelling, and design and decision support tools. Decisions about how and when best to intervene to extend the life of an earthworks asset are complicated by uncertainty about their likely lifespans and times to failure. This uncertainty has been addressed through the development of a probabilistic approach to the assessment of the varying expected costs over time of asset failures and interventions, and their comparison to identify the most economically advantageous timing of interventions.
Railways, Earthworks, Remediation, Economic Assessment, Uncertainty
Armstrong, John
5fafa91e-39c1-4d1d-a331-564558aaa638
Preston, John
ef81c42e-c896-4768-92d1-052662037f0b
Armstrong, John
5fafa91e-39c1-4d1d-a331-564558aaa638
Preston, John
ef81c42e-c896-4768-92d1-052662037f0b
Armstrong, John and Preston, John
(2023)
ACHILLES: handling uncertainty in railway earthworks maintenance and renewals.
4th International Railway Symposium Aachen, , Aachen, Germany.
22 - 23 Nov 2023.
19 pp
.
(In Press)
Record type:
Conference or Workshop Item
(Paper)
Abstract
Earthworks around the world, many of which date from the 19th century, are subject to the combined impacts of ageing and increasingly extreme weather conditions, increasing the need for condition monitoring, maintenance and enhancement within limited budgets. The ACHILLES research programme is addressing these challenges, developing improved understanding of earthworks behaviour, methods of monitoring, simulation and modelling, and design and decision support tools. Decisions about how and when best to intervene to extend the life of an earthworks asset are complicated by uncertainty about their likely lifespans and times to failure. This uncertainty has been addressed through the development of a probabilistic approach to the assessment of the varying expected costs over time of asset failures and interventions, and their comparison to identify the most economically advantageous timing of interventions.
Text
ACHILLES - handling uncertainty in railway earthworks maintenance and renewals - final
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Submitted date: 15 February 2023
Accepted/In Press date: 19 October 2023
Venue - Dates:
4th International Railway Symposium Aachen, , Aachen, Germany, 2023-11-22 - 2023-11-23
Keywords:
Railways, Earthworks, Remediation, Economic Assessment, Uncertainty
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Local EPrints ID: 487352
URI: http://eprints.soton.ac.uk/id/eprint/487352
PURE UUID: b66f99a4-3e4c-416d-8ea1-62eab56b63d6
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Date deposited: 19 Feb 2024 20:52
Last modified: 18 Mar 2024 03:03
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