Optimal Railway Routing Using Virtual Subsections

The design of railway systems has become a non-trivial task which more and more demands for efficient design automation methods. Modern railway systems based on standards such as the European Train Control System (ETCS) Level 3, the Chinese Train Control System (CTCS) Level 3+/4, or the Indian Train Protection and Warning System (TPWS) introduce new concepts such as virtual subsections which allow for a much higher degree of freedom and provide significant potential for increasing the efficiency in today’s railway schedules. At the same time, this substantially increases the complexity of determining efficient solutions. The current state of the art addresses this complexity by discretizing the problem. In this work, we show that this, however, leads to substantial problems, namely infeasible configurations, rounding errors, and oversimplifications, that either harm the efficiency of the solving process or yield results which are significantly off from the actual optimum. Motivated by that, we propose an alternative design automation method that avoids discretization at all, overcomes the resulting problems, and additionally allows to solve the problem magnitudes faster than before.

Language

  • English

Media Info

  • Media Type: Web
  • Edition: 1
  • Pagination: pp 63-79
  • Monograph Title: Reliability, Safety, and Security of Railway Systems. Modelling, Analysis, Verification, and Certification: 4th International Conference, RSSRail 2022, Paris, France, June 1–2, 2022, Proceedings
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01963497
  • Record Type: Publication
  • ISBN: 9783031058134
  • Files: TRIS
  • Created Date: Aug 19 2025 3:55PM