Track geometry quality assessments for turnouts

Turnouts are necessary, frequent and cost intensive. Despite the railway sector's focus on automation, the condition assessment of turnouts is still mostly done manually by responsible staff inspecting the turnout. While system's safety is guaranteed by this approach, drawbacks are high co...

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Main Authors: Markus Loidolt, Stefan Marschnig, Armin Berghold
Format: Article
Language:English
Published: Elsevier 2023-06-01
Series:Transportation Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666691X23000118
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author Markus Loidolt
Stefan Marschnig
Armin Berghold
author_facet Markus Loidolt
Stefan Marschnig
Armin Berghold
author_sort Markus Loidolt
collection DOAJ
description Turnouts are necessary, frequent and cost intensive. Despite the railway sector's focus on automation, the condition assessment of turnouts is still mostly done manually by responsible staff inspecting the turnout. While system's safety is guaranteed by this approach, drawbacks are high costs, subjectivity of assessments and a missing opportunity of prognoses. Most importantly, we will not expect to have the workforce for this regime in future years. By assisting responsible staff with data-based quality assessments, save and time optimised inspection can also be guaranteed with labour force reductions. For providing this, we use data from the track recording car, apply a post positioning procedure and calculate quality indices describing track geometry quality of turnouts in an objective way. The visualisation of these indices over time lead to data sheets which can be used by the responsible staff for maintenance planning. Additionally, the indices build the basis for predictive maintenance regimes for turnouts and open several possibilities for practical and academic enhancements regarding asset management of turnouts.
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spelling doaj.art-c53273dbcc454de0bf5b9f039149099c2023-06-02T04:23:55ZengElsevierTransportation Engineering2666-691X2023-06-0112100170Track geometry quality assessments for turnoutsMarkus Loidolt0Stefan Marschnig1Armin Berghold2Graz University of Technology, Rechbauerstraße 12, Graz 8010, Austria; Corresponding author.Graz University of Technology, Rechbauerstraße 12, Graz 8010, AustriaÖBB Infrastruktur AG, AustriaTurnouts are necessary, frequent and cost intensive. Despite the railway sector's focus on automation, the condition assessment of turnouts is still mostly done manually by responsible staff inspecting the turnout. While system's safety is guaranteed by this approach, drawbacks are high costs, subjectivity of assessments and a missing opportunity of prognoses. Most importantly, we will not expect to have the workforce for this regime in future years. By assisting responsible staff with data-based quality assessments, save and time optimised inspection can also be guaranteed with labour force reductions. For providing this, we use data from the track recording car, apply a post positioning procedure and calculate quality indices describing track geometry quality of turnouts in an objective way. The visualisation of these indices over time lead to data sheets which can be used by the responsible staff for maintenance planning. Additionally, the indices build the basis for predictive maintenance regimes for turnouts and open several possibilities for practical and academic enhancements regarding asset management of turnouts.http://www.sciencedirect.com/science/article/pii/S2666691X23000118RailwaysTurnoutLife cycle costsData analysisPredictive maintenanceTrack geometry
spellingShingle Markus Loidolt
Stefan Marschnig
Armin Berghold
Track geometry quality assessments for turnouts
Transportation Engineering
Railways
Turnout
Life cycle costs
Data analysis
Predictive maintenance
Track geometry
title Track geometry quality assessments for turnouts
title_full Track geometry quality assessments for turnouts
title_fullStr Track geometry quality assessments for turnouts
title_full_unstemmed Track geometry quality assessments for turnouts
title_short Track geometry quality assessments for turnouts
title_sort track geometry quality assessments for turnouts
topic Railways
Turnout
Life cycle costs
Data analysis
Predictive maintenance
Track geometry
url http://www.sciencedirect.com/science/article/pii/S2666691X23000118
work_keys_str_mv AT markusloidolt trackgeometryqualityassessmentsforturnouts
AT stefanmarschnig trackgeometryqualityassessmentsforturnouts
AT arminberghold trackgeometryqualityassessmentsforturnouts