Modelling Rail Track Performance: An Integrated Approach.

ZHANG, Y J; Yj, Zhang; Murray, Martin H.; Ferreira, Luis

doi:10.1680/itran.2000.32786

Cited by 12 publications

(20 citation statements)

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“…This model simulates the change in track degradation speed (level) depending on the change in traffic parameters, and the output data of the model are: the predicted time period of track serviceability and the costs of eliminating subsequent degradation (maintenance, repairs) in this period. The results of this research project verified the validity of research results obtained in 2000 in Portugal [3] and also an extremely large importance of applying these models in the process of improvement of Lithuanian railway infrastructure maintenance.…”

Section: Research Overview On the Functions Of Ballast And Its Influesupporting

confidence: 79%

“…In 2000, in Australia an integrated computer-based tool has been developed to predict track behaviour under changing traffic conditions [3]. This railway track degradation model takes into account interactions between track components.…”

Section: Research Overview On the Functions Of Ballast And Its Influementioning

confidence: 99%

“…The ballast has a significant influence on the quality and strength of railway track. Therefore, it has been subjected to many specific requirements [3]. Some of them are very important in both structural and cost-efficiency point of view, others are less important or already fully implemented (adapted).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Crushed rock ballast bed in the railway lines of Lithuania: analysis of the situation and arising problems

Ramūnas

Gailiene

Laurinavičius

2014

The 9th International Conference "Environmental Engineering 2014"

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Under high cyclic loading of trains the particles of railway ballast disintegrate and worsen in a progressing way. Disintegration of ballast particles is always related to railway track deformations which require expensive continuous maintenance of railway track-the failed ballast is replaced by a new one and is later compacted (tampered). Railway ballast has a significant influence on the quality and strength of railway track. Therefore, it has been subjected to many specific requirements. Some of them are very important both in structural and cost-efficiency point of view, others are less important or already fully implemented (adapted). The scientists analyse and present research results comprising not only the entire railway transport system but also each of its components. Seeking to rationally plan further comprehensive research on the ballast bed and materials used in it, the article overviews and systematically discusses the arising problems associated with construction and aggregates of the ballast bed. The article gives the analysis of the functions of crushed rock ballast bed and requirements set to it. Also, studies the results of worldwide scientific researches and need for their adaption to Lithuanian operating conditions. The article presents the research on the condition of railway ballast layers (1514 km) in the railway lines of Lithuania and discusses the results. Additionally the detailed geological studies were carried out in 84 km in length of ballast bed.

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Section: Research Overview On the Functions Of Ballast And Its Influesupporting

confidence: 79%

Section: Research Overview On the Functions Of Ballast And Its Influementioning

confidence: 99%

See 1 more Smart Citation

Crushed rock ballast bed in the railway lines of Lithuania: analysis of the situation and arising problems

Ramūnas

Gailiene

Laurinavičius

2014

The 9th International Conference "Environmental Engineering 2014"

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“…It consists of four submodels for rail, sleeper, ballast and subgrade degradation. It predicts both individual subsystem degradation and whole track system degradation [15].…”

Section: Itdm-integrated Track Degradationmentioning

confidence: 99%

Track Gauge Degradation Modelling on Small Urban Rail Networks: Zagreb Tram System Case Study

Ahac¹,

Lakušić²

2017

Urban Transport Systems

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Track gauge is the most significant tram track geometry parameter. Its degradation, which manifests as gradual increase of gauge deviation from prescribed values during track exploitation, causes poor ride quality, reduces safety and triggers most of the maintenance activities. To optimize tram track maintenance procedures, it is necessary to increase the proportion of preventive maintenance at the expense of corrective maintenance. This requires creation of physical model of track degradation. Conducted survey of conventional track degradation models showed that, in order to quantify the influence of track design, construction and exploitation characteristics on gauge degradation, it is most favourable to adopt the mechanistic-empirical modelling approach. Zagreb high-capacity tram network presents an optimal testing ground for exploration of the possibilities for tram track gauge degradation model development. Analysis of modelling results gave new, practical insights about the effects of tram track design and construction elements and exploitation characteristics on gauge degradation. These models represent the first step towards predictive maintenance system establishment on Zagreb tram tracks.

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“…The mechanistic approach involves establishing, by theory or testing, the mechanical properties of rail track structure. It includes the calculation of forces and stresses in order to assess the degradation variation of the rail [4].…”

Section: Mechanistic Modelsmentioning

confidence: 99%

Degradation Prediction of Rail Tracks: A Review of the Existing Literature

Elkhoury¹,

Hitihamillage²,

Moridpour³

et al. 2018

TOTJ

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In the past few decades, the railway infrastructure has been widely expanded in urban and rural areas, making it the most complex matrix of rail transport networks. Safe and comfortable travel on railways has always been a common goal for transportation engineers and researchers, and requires railways in excellent condition and well-organized maintenance practices. Degradation of rail tracks is a main concern for railway organizations as it affects the railway’s behaviour and its parameters, such as track geometry, speed, traffic and loads. Therefore, the prediction of the degradation of rail tracks is very important in order to optimise maintenance needs, reduce maintenance and operational costs of railways, and improve rail track conditions.This paper provides a comprehensive review of rail degradation prediction models, their parameters, and the strengths and weaknesses of each model. A comprehensive discussion of existing research and a comparison of different models of degradation of rail tracks is also provided. Finally, this review presents concluding remarks on the limitations of existing studies and provides recommendations for further research and appraisal practices.

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Modelling Rail Track Performance: An Integrated Approach.

Cited by 12 publications

References 0 publications

Crushed rock ballast bed in the railway lines of Lithuania: analysis of the situation and arising problems

Crushed rock ballast bed in the railway lines of Lithuania: analysis of the situation and arising problems

Track Gauge Degradation Modelling on Small Urban Rail Networks: Zagreb Tram System Case Study

Degradation Prediction of Rail Tracks: A Review of the Existing Literature

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