Geometrical degradation of railway turnouts: A case study from a Swedish heavy haul railroad
Turnouts are critical components of track systems in terms of safety, operation and maintenance. Each year, a considerable part of the maintenance budget is spent on their inspection, maintenance and renewal. Applying a cost-effective maintenance strategy helps to achieve the best performance at the...
Published in: | Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit |
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crsagepubl:10.1177/0954409713503320 2024-04-28T08:32:38+00:00 Geometrical degradation of railway turnouts: A case study from a Swedish heavy haul railroad khouy, Iman Arasteh Larsson-Kråik, Per-Olof Nissen, Arne Lundberg, Jan Kumar, Uday 2013 http://dx.doi.org/10.1177/0954409713503320 http://journals.sagepub.com/doi/pdf/10.1177/0954409713503320 http://journals.sagepub.com/doi/full-xml/10.1177/0954409713503320 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit volume 228, issue 6, page 611-619 ISSN 0954-4097 2041-3017 Mechanical Engineering journal-article 2013 crsagepubl https://doi.org/10.1177/0954409713503320 2024-04-02T08:16:09Z Turnouts are critical components of track systems in terms of safety, operation and maintenance. Each year, a considerable part of the maintenance budget is spent on their inspection, maintenance and renewal. Applying a cost-effective maintenance strategy helps to achieve the best performance at the lowest possible cost. In Sweden, the geometry of turnouts is inspected at predefined time intervals using the STRIX / IMV 100 track measurement car. This study uses time series for the measured longitudinal level of turnouts on the Iron Ore Line (Malmbanan) in northern Sweden. Two different approaches are applied to analyse the geometrical degradation of turnouts due to dynamic forces generated by train traffic. In the first approach, the recorded measurements are adjusted at the crossing point and then the relative geometrical degradation of turnouts is evaluated by using two defined parameters, the absolute residual area and the maximum settlement, In the second approach, various geometry parameters are defined to estimate the degradation in each measurement separately. The growth rate of the longitudinal level degradation as a function of million gross tonnes / time is evaluated. The proposed methods are based on characterisation of the individual track measurements. The results facilitate correct decision-making in the maintenance process through understanding the degradation rate and defining the optimal maintenance thresholds for the planning process. In the long run, this can lead to a cost-effective maintenance strategy with optimised inspection and maintenance intervals. Article in Journal/Newspaper Northern Sweden SAGE Publications Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 228 6 611 619 |
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SAGE Publications |
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English |
topic |
Mechanical Engineering |
spellingShingle |
Mechanical Engineering khouy, Iman Arasteh Larsson-Kråik, Per-Olof Nissen, Arne Lundberg, Jan Kumar, Uday Geometrical degradation of railway turnouts: A case study from a Swedish heavy haul railroad |
topic_facet |
Mechanical Engineering |
description |
Turnouts are critical components of track systems in terms of safety, operation and maintenance. Each year, a considerable part of the maintenance budget is spent on their inspection, maintenance and renewal. Applying a cost-effective maintenance strategy helps to achieve the best performance at the lowest possible cost. In Sweden, the geometry of turnouts is inspected at predefined time intervals using the STRIX / IMV 100 track measurement car. This study uses time series for the measured longitudinal level of turnouts on the Iron Ore Line (Malmbanan) in northern Sweden. Two different approaches are applied to analyse the geometrical degradation of turnouts due to dynamic forces generated by train traffic. In the first approach, the recorded measurements are adjusted at the crossing point and then the relative geometrical degradation of turnouts is evaluated by using two defined parameters, the absolute residual area and the maximum settlement, In the second approach, various geometry parameters are defined to estimate the degradation in each measurement separately. The growth rate of the longitudinal level degradation as a function of million gross tonnes / time is evaluated. The proposed methods are based on characterisation of the individual track measurements. The results facilitate correct decision-making in the maintenance process through understanding the degradation rate and defining the optimal maintenance thresholds for the planning process. In the long run, this can lead to a cost-effective maintenance strategy with optimised inspection and maintenance intervals. |
format |
Article in Journal/Newspaper |
author |
khouy, Iman Arasteh Larsson-Kråik, Per-Olof Nissen, Arne Lundberg, Jan Kumar, Uday |
author_facet |
khouy, Iman Arasteh Larsson-Kråik, Per-Olof Nissen, Arne Lundberg, Jan Kumar, Uday |
author_sort |
khouy, Iman Arasteh |
title |
Geometrical degradation of railway turnouts: A case study from a Swedish heavy haul railroad |
title_short |
Geometrical degradation of railway turnouts: A case study from a Swedish heavy haul railroad |
title_full |
Geometrical degradation of railway turnouts: A case study from a Swedish heavy haul railroad |
title_fullStr |
Geometrical degradation of railway turnouts: A case study from a Swedish heavy haul railroad |
title_full_unstemmed |
Geometrical degradation of railway turnouts: A case study from a Swedish heavy haul railroad |
title_sort |
geometrical degradation of railway turnouts: a case study from a swedish heavy haul railroad |
publisher |
SAGE Publications |
publishDate |
2013 |
url |
http://dx.doi.org/10.1177/0954409713503320 http://journals.sagepub.com/doi/pdf/10.1177/0954409713503320 http://journals.sagepub.com/doi/full-xml/10.1177/0954409713503320 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit volume 228, issue 6, page 611-619 ISSN 0954-4097 2041-3017 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/0954409713503320 |
container_title |
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit |
container_volume |
228 |
container_issue |
6 |
container_start_page |
611 |
op_container_end_page |
619 |
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1797589756929900544 |