A Direct Comparison of Physical Block Occupancy Versus Timed Block Occupancy in Train Timetabling Formulations

  • Two fundamental mathematical formulations for railway timetabling are compared on a common set of sample problems, representing both multiple track high density services in Europe and single track bidirectional operations in North America. One formulation, ACP, enforces against conflicts by constraining time intervals between trains, while the other formulation, RCHF, monitors physical occupation of controlled track segments. The results demonstrate that both ACP and RCHF return comparable solutions in the aggregate, with some significant differences in select instances, and a pattern of significant differences in performance and constraint enforcement overall.

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Metadaten
Author:Steven Harrod, Thomas Schlechte
Document Type:Article
Parent Title (English):Transportation Research Part E: Logistics and Transportation Review
Volume:54
First Page:50
Last Page:66
Year of first publication:2013
Preprint:urn:nbn:de:0297-zib-17946
DOI:https://doi.org/10.1016/j.tre.2013.04.003