Conference paper
A Polynomial Estimate of Railway Line Delay
Department of Management Engineering, Technical University of Denmark1
Transport DTU, Department of Management Engineering, Technical University of Denmark2
Transport Modelling, Department of Management Engineering, Technical University of Denmark3
Management Science, Department of Management Engineering, Technical University of Denmark4
Operations Management, Management Science, Department of Management Engineering, Technical University of Denmark5
Railway service may be measured by the aggregate delay over a time horizon or due to an event. Timetables for railway service may dampen aggregate delay by addition of additional process time, either supplement time or buffer time. The evaluation of these variables has previously been performed by numerical analysis with simulation.
This paper proposes an analytical estimate of aggregate delay with a polynomial form. The function returns the aggregate delay of a railway line resulting from an initial, primary, delay. Analysis of the function demonstrates that there should be a balance between the two remedial measures, supplement and buffer.
Numerical analysis of a Copenhagen Sbane line shows that the polynomial function is valid even when theoretical assumptions are violated.
Language: | English |
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Year: | 2017 |
Proceedings: | Trafikdage pƄ Aalborg Universitet 2017 |
ISSN: | 25969196 and 16039696 |
Types: | Conference paper |
ORCIDs: | Cerreto, Fabrizio , Harrod, Steven and Nielsen, Otto Anker |