iranian railway system performance analysis using computer simulation and data envelopment analysis methods

Authors

amirsaman kheirkhah bu-ali sina university, faculty of engineering, industrial engineering department, hamedan, iran

hassan zolfaghari bu-ali sina university, faculty of engineering, industrial engineering department, hamedan, iran

abstract

in this paper, a discrete event simulation model of iranian railway system is used for analyzing performance of the system in freight sector. the model analysis shows more sensitivity of the system on loading and unloading facilities than on number of wagons and locomotives. system optimization through simulation optimization technique, shows that more than 4% of all wagons available in the network are not needed. data envelopment analysis (dea) method is used for analyzing overall performance of the system. based on the dea results, the system currently perform more than 19% under nominal performance, and that will be improved more than 5% after removing the excess wagons .

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Journal title:
بین المللی مهندسی صنایع و مدیریت تولید

جلد ۲۲، شماره ۳، صفحات ۲۶۳-۲۷۲

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