Measures and Methods for the Evaluation of ATO Algorithms

There is increasing interest in automating train operations of mainline services, e.g., to increase network capacity. Automatic train operation (ATO) is already achieved by several pilot projects, but is still not implemented on a large scale. Functional, interoperability and performance tests are n...

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Main Authors: Patrick Bochmann, Birgit Jaekel
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/9/4570
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author Patrick Bochmann
Birgit Jaekel
author_facet Patrick Bochmann
Birgit Jaekel
author_sort Patrick Bochmann
collection DOAJ
description There is increasing interest in automating train operations of mainline services, e.g., to increase network capacity. Automatic train operation (ATO) is already achieved by several pilot projects, but is still not implemented on a large scale. Functional, interoperability and performance tests are necessary before ATO can be introduced generally. Virtual preliminary analysis will contribute to the validation process to ensure a safe and successful implementation. This paper aims to present an approach that applies to the performance testing of ATO systems. Therefore, methods and test standards for technologies enabling automatic operation in other transport sectors are reviewed. The main findings have been adapted, transformed and combined to be used as a general strategy for virtual performance testing in the railway sector. Specifically, universal performance indicators commonly used in the railway sector, namely punctuality, accuracy, energy consumption, safety and comfort, are presented. They are refined by adding sub-indicators specific to the performance evaluation of ATO algorithms. A layer model for scenario description is adapted from the automotive sector, as well as the definition of different scenario types. Lastly, factors that can influence the performance of an ATO algorithm are identified. For demonstration purposes, a simple case study is conducted. Thereby we exemplarily show-cased the approach for ATO performance testing using a microscopic train simulator in combination with an ATO algorithm.
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spelling doaj.art-a475598b83214cd3973b58b7a8bc9aff2023-11-23T07:50:52ZengMDPI AGApplied Sciences2076-34172022-04-01129457010.3390/app12094570Measures and Methods for the Evaluation of ATO AlgorithmsPatrick Bochmann0Birgit Jaekel1Chair of Traffic Process Automation, Technische Universität Dresden, 01062 Dresden, GermanyChair of Traffic Process Automation, Technische Universität Dresden, 01062 Dresden, GermanyThere is increasing interest in automating train operations of mainline services, e.g., to increase network capacity. Automatic train operation (ATO) is already achieved by several pilot projects, but is still not implemented on a large scale. Functional, interoperability and performance tests are necessary before ATO can be introduced generally. Virtual preliminary analysis will contribute to the validation process to ensure a safe and successful implementation. This paper aims to present an approach that applies to the performance testing of ATO systems. Therefore, methods and test standards for technologies enabling automatic operation in other transport sectors are reviewed. The main findings have been adapted, transformed and combined to be used as a general strategy for virtual performance testing in the railway sector. Specifically, universal performance indicators commonly used in the railway sector, namely punctuality, accuracy, energy consumption, safety and comfort, are presented. They are refined by adding sub-indicators specific to the performance evaluation of ATO algorithms. A layer model for scenario description is adapted from the automotive sector, as well as the definition of different scenario types. Lastly, factors that can influence the performance of an ATO algorithm are identified. For demonstration purposes, a simple case study is conducted. Thereby we exemplarily show-cased the approach for ATO performance testing using a microscopic train simulator in combination with an ATO algorithm.https://www.mdpi.com/2076-3417/12/9/4570ATOsimulationperformance evaluationscenario-based testing
spellingShingle Patrick Bochmann
Birgit Jaekel
Measures and Methods for the Evaluation of ATO Algorithms
Applied Sciences
ATO
simulation
performance evaluation
scenario-based testing
title Measures and Methods for the Evaluation of ATO Algorithms
title_full Measures and Methods for the Evaluation of ATO Algorithms
title_fullStr Measures and Methods for the Evaluation of ATO Algorithms
title_full_unstemmed Measures and Methods for the Evaluation of ATO Algorithms
title_short Measures and Methods for the Evaluation of ATO Algorithms
title_sort measures and methods for the evaluation of ato algorithms
topic ATO
simulation
performance evaluation
scenario-based testing
url https://www.mdpi.com/2076-3417/12/9/4570
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AT birgitjaekel measuresandmethodsfortheevaluationofatoalgorithms