A whole life cycle approach under uncertainty for economically justifiable ballasted railway track maintenance

Sasidharan, Manu; Burrow, Michael; Ghataora, Gurmel S.

doi:10.1016/j.retrec.2020.100815

Cited by 39 publications

(34 citation statements)

References 32 publications

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“…This, in turn, would make it possible to manage the level of vulnerability or risks in the system, while considering the costs and benefits of different asset management strategies and resource allocations. Similar approaches have been successfully adopted globally for managing other transport infrastructures such as roads (Qiao, Dawson, Parry, & Flintsch, 2015) and railways (Sasidharan, Burrow, & Ghataora, 2020;Sasidharan & Torbaghan, 2020).…”

Section: Risk-informed Asset Management Of Bridge Scourmentioning

confidence: 99%

Risk-informed asset management to tackle scouring on bridges across transport networks

Sasidharan

Parlikad

Schooling

2021

Structure and Infrastructure Engineering

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Scour is one of the main causes of bridge failures resulting in significant macroeconomic impacts, often beyond the direct costs of infrastructure damage. Given the pressure to increase the resilience of transport networks, ageing bridge infrastructure, constrained budgets, variable knowledge of asset conditions and limited data, mixed ownership and operation of bridges, and concerns about the risks of climate change, there is a need to implement cost-effective monitoring and maintenance strategies. To this end, this study aims to set the scene for a risk-informed approach for tackling bridge scour, while considering the socioeconomic impacts of disruptions due to bridge failures or closures. This study reviews the current practices in predicting, monitoring and managing bridge scour. It discusses the development of a risk-informed approach to aid the whole-life appraisal of bridges while considering the direct and indirect costs associated with bridge failure or closures. The approach provides a rational means to enable asset managers to evaluate the factors that affect bridge failure risk, select and prioritise appropriate mitigation measures, thereby improving the allocation of scarce monitoring and maintenance resources.

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Section: Risk-informed Asset Management Of Bridge Scourmentioning

confidence: 99%

Risk-informed asset management to tackle scouring on bridges across transport networks

Sasidharan

Parlikad

Schooling

2021

Structure and Infrastructure Engineering

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“…As metodologias de análise em diferentes tipos de projetos têm adotado parâmetros técnicos (Pons et al, 2020), econômicos (Sasidharan et al, 2020) e ambientais (Shinde et al, 2018) para avaliação de cenários. Desta forma, os resultados permitiram suportar as decisões de modo a mensurar as relações de custo-benefício entre as diferentes perspectivas possíveis, como apresentado por Barrientos ( 2016) com a utilização de algoritmos de otimização inteligente para avaliação de projetos na construção de infraestrutura ferroviária.…”

Section: Revisão Bibliográficaunclassified

The Pilotis as Sociospatial Integrator: The Urban Campus of the Catholic University of Pernambuco

Lima¹,

Nóbrega²,

Silva³

2021

Engenharias: Da Genialidade À Profissão E Seu Desenvolvimento

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Direitos para esta edição cedidos à Atena Editora pelos autores. Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0).O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais. Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica.A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético.

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“…-In order to eliminate the initial effects of unplanned track maintenances performed, the duration between those period were not taken into consideration. As summarized by Sasidharan et al (2020), exponential (Quiroga and Schnieder 2011) and linear (Soleimanmeigouni, Ahmadi and Kumar 2018) are the two of the track deterioration models used in the literature. Using the mentioned models and according to the results obtained deterioration rates of the track before and after the renewal can be summarized at table 4.…”

Section: Evaluation Of the Track Geometry Quality With Standard Deviamentioning

confidence: 99%

Yol Geometrisi Kalitesinin Standart Sapma Yöntemi ve Kalite Endeksleri İle Değerlendirilmesi: Kütahya-Afyonkarahisar Hattı Örneği

Yaliniz¹,

Iça²

2020

Afyon Kocatepe University Journal of Sciences and Engineering

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In this paper, a specific part of the railway line between Kütahya and Afyonkarahisar cities was investigated. The track geometry parameters alignment, cant, longitudinal level, track gauge and twist investigated at this track section in accordance with the related standard EN:13848-5 and evaluations conducted about the track geometry defects. A fatal train accident occurred on the Kütahya-Afyonkarahisar railway line in 2008, besides the line was completely renewed in 2013. For this reason, measurements were carried out by the help of track geometry measuring devices on the Kütahya-Afyonkarahisar railway line having the opportunity to compare the improvements at the track geometry quality, within four years period. Owing to measurements performed on the track section, improvements, degradations and degradation trends were determined using the standard deviation method mentioned in the standard EN:13848-5. In addition, the effects of the track renewal performed on the railway line discussed by the help of the Track Quality Indices (TQI), Overall Quality Indices (OQI) and Tamping Indices (TI) concepts. In light of the case study conducted at this paper, the quality of the track renewal and maintenance works performed by Turkish State Railways (TCDD) was examined.

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A whole life cycle approach under uncertainty for economically justifiable ballasted railway track maintenance

Cited by 39 publications

References 32 publications

Risk-informed asset management to tackle scouring on bridges across transport networks

Risk-informed asset management to tackle scouring on bridges across transport networks

The Pilotis as Sociospatial Integrator: The Urban Campus of the Catholic University of Pernambuco

Yol Geometrisi Kalitesinin Standart Sapma Yöntemi ve Kalite Endeksleri İle Değerlendirilmesi: Kütahya-Afyonkarahisar Hattı Örneği

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