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R. Parise¹, M. Schenker² and H. Dittus ²

¹German Aerospace Center (DLR), Institute of Vehicle Concepts Berlin, Germany
²German Aerospace Center (DLR), Institute of Vehicle Concepts Stuttgart, Germany

doi:10.4203/ccc.1.13.2

R. Parise, M. Schenker, H. Dittus, "Energy Impact of Different Intra-Platoon Spacing Policies for Virtually-Coupled Trains Sets", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 13.2, 2022, doi:10.4203/ccc.1.13.2

Keywords: virtually coupled train-sets, VCTS, energy optimization.

Abstract

Virtually-coupled train sets (VCTS) is a new railway operation concept that allows trains to drive together in a harmonized fashion without a physical connection, similar to a platoon of road vehicles. Since the distance between trains is not necessarily fixed (in contrast to mechanically connected trains), VCTS may get a small time advantage every time there is a change in the speed limit of the track. This paper analyses the time difference between mechanically coupled trains and VCTS using two different inter-vehicular distancing policy (namely constant gap (CDG) and constant headway (CTH)). The analysis is carried out analytically for a simple track for sake of visualization, and numerically on a virtual but representative regional track. The results show that the time advantage for CDG policy non-negligible, while the CTH performs worse than its mechanical counterpart. This report shows also that the time advantage can be converted into energy reduction in the range from 2-12% by allowing trains to drive slower while respecting the same timetable.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 1 PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 13.2 Energy Impact of Different Intra-Platoon Spacing Policies for Virtually-Coupled Trains Sets R. Parise¹, M. Schenker² and H. Dittus ² ¹German Aerospace Center (DLR), Institute of Vehicle Concepts Berlin, Germany ²German Aerospace Center (DLR), Institute of Vehicle Concepts Stuttgart, Germany doi:10.4203/ccc.1.13.2 Full Bibliographic Reference for this paper R. Parise, M. Schenker, H. Dittus, "Energy Impact of Different Intra-Platoon Spacing Policies for Virtually-Coupled Trains Sets", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 13.2, 2022, doi:10.4203/ccc.1.13.2 Keywords: virtually coupled train-sets, VCTS, energy optimization. Abstract Virtually-coupled train sets (VCTS) is a new railway operation concept that allows trains to drive together in a harmonized fashion without a physical connection, similar to a platoon of road vehicles. Since the distance between trains is not necessarily fixed (in contrast to mechanically connected trains), VCTS may get a small time advantage every time there is a change in the speed limit of the track. This paper analyses the time difference between mechanically coupled trains and VCTS using two different inter-vehicular distancing policy (namely constant gap (CDG) and constant headway (CTH)). The analysis is carried out analytically for a simple track for sake of visualization, and numerically on a virtual but representative regional track. The results show that the time advantage for CDG policy non-negligible, while the CTH performs worse than its mechanical counterpart. This report shows also that the time advantage can be converted into energy reduction in the range from 2-12% by allowing trains to drive slower while respecting the same timetable. download the full-text of this paper (PDF, 8 pages, 577 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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