A New Methodology for Assessment of Railway Infrastructure Condition

Kovačević, Meho Saša; Gavin, Kenneth; Stipanović, Irina; Bačić, Mario

doi:10.1016/j.trpro.2016.05.160

Cited by 28 publications

(9 citation statements)

References 3 publications

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“…In [49], the author discusses a railway assessment practice in the United Kingdom; the approach presented therein includes the use of GPR. In Croatia, the EU-funded DESTination RAIL project [50], which is ending in April 2018, has recently investigated efficient solutions for a number of problems faced by European railway network managers; the proposed approach for the assessment of track conditions includes the use of GPR as primary tool, to be employed in combination with other methods (seismic refraction surveys to assess the embankments, use of unmanned aerial vehicles for visual assessment of the condition of existing railways instead of standard visual inspections, spectral and multichannel analysis of surface waves for the evaluation of the structure and shear modulus profile of trackbed and subgrade).…”

Section: Overview On the Use Of Gpr For Railway Monitoringmentioning

confidence: 99%

Railway Track Condition Assessment at Network Level by Frequency Domain Analysis of GPR Data

et al. 2018

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Abstract:The railway track system is a crucial infrastructure for the transportation of people and goods in modern societies. With the increase in railway traffic, the availability of the track for monitoring and maintenance purposes is becoming significantly reduced. Therefore, continuous non-destructive monitoring tools for track diagnoses take on even greater importance. In this context, Ground Penetrating Radar (GPR) technique results yield valuable information on track condition, mainly in the identification of the degradation of its physical and mechanical characteristics caused by subsurface malfunctions. Nevertheless, the application of GPR to assess the ballast condition is a challenging task because the material electromagnetic properties are sensitive to both the ballast grading and water content. This work presents a novel approach, fast and practical for surveying and analysing long sections of transport infrastructure, based mainly on expedite frequency domain analysis of the GPR signal. Examples are presented with the identification of track events, ballast interventions and potential locations of malfunctions. The approach, developed to identify changes in the track infrastructure, allows for a user-friendly visualisation of the track condition, even for GPR non-professionals such as railways engineers, and may further be used to correlate with track geometric parameters. It aims to automatically detect sudden variations in the GPR signals, obtained with successive surveys over long stretches of railway lines, thus providing valuable information in asset management activities of infrastructure managers.

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Section: Overview On the Use Of Gpr For Railway Monitoringmentioning

confidence: 99%

Railway Track Condition Assessment at Network Level by Frequency Domain Analysis of GPR Data

et al. 2018

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“…This inevitably led to significantly lower safety of railway assets, not just in EU transit states, but also in developed ones. The ageing of the railway infrastructure, fuelled by the lack of clear strategies and non-investment atmosphere [1] has caused its gradual degradation and there is a strong need for risk assessment associated with this obsolete infrastructure, all with the aim of increasing safety and reducing the cost of rehabilitation. However, rehabilitation procedures still mostly remain as reactive procedures, rather than implementing proactive approach, which allows prioritization of the rail investments in both construction of new and remediation of existing networks.…”

Section: Introductionmentioning

confidence: 99%

Challenges of Railway Embankments Remediation

Bačić¹,

Juzbašić²

2020

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)

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“…As técnicas de inspeção mais avançadas com recurso a drones permitem realizar: i) a reconstituição 3D da geometria, recorrendo a ortomosaicos georreferenciados obtidos através de técnicas de fotogrametria [1], ii) a identificação automática de patologias, com base em ferramentas computacionais avançadas [2], e iii) a elaboração de relatórios de inspeção enviados ao gestor da infraestrutura [3]. Henriques et al [4] realizaram o levantamento fotogramétrico tridimensional do paramento de uma barragem em betão, com base em imagens georreferenciadas captadas com um drone, para a identificação de zonas com presença de eflorescências.…”

Section: Introductionunclassified

Inspeção Remota de Estruturas com Recurso a VANT e Integração em Modelos BIM

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et al. 2020

3º Congresso Português De 'Building Information Modelling'

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ResumoO presente artigo descreve uma metodologia de inspeção remota de estruturas com recurso a Veículos Aéreos Não-Tripulados (VANT) e assente no processamento automatizado de imagens digitais, incluindo a sua posterior integração em modelos BIM. A metodologia proposta é baseada na aplicação de técnicas avançadas de processamento de imagem desenvolvidas em MATLAB que permitem de modo automático realizar a identificação de patologias em estruturas de betão. A metodologia de inspeção desenvolvida é aplicada ao fuste da torre de telecomunicações do Monte da Virgem localizada em VN Gaia. Os resultados obtidos demonstraram a eficiência e robustez da metodologia na identificação das diversas patologias, nomeadamente, ataques biológicos, eflorescências, fissuras e armaduras expostas, além do seu mapeamento em modelo BIM. A introdução dos resultados das inspeções em modelos BIM possibilitará no futuro melhorias significativas no acompanhamento do estado de conservação das estruturas e na sistematização dos processos de manutenção das mesmas.

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A New Methodology for Assessment of Railway Infrastructure Condition

Cited by 28 publications

References 3 publications

Railway Track Condition Assessment at Network Level by Frequency Domain Analysis of GPR Data

Railway Track Condition Assessment at Network Level by Frequency Domain Analysis of GPR Data

Challenges of Railway Embankments Remediation

Inspeção Remota de Estruturas com Recurso a VANT e Integração em Modelos BIM

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