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- W61032988 abstract "This research has the objective of providing reliable tools for forecasting the costs of transporting coal from the coal supply regions to the coal demand regions of the United States. The present work was devoted primarily to improving and updating the Railroad Routing Model (RRM) and related data base developed earlier. The railroad network data were modified to incorporate the extensive structural changes which occurred during the period 1980 to 1982. All of the rail time, energy, and cost functions were completely reestimated, taking advantage of improved railrod operations and cost simulators and recent research on railroad costs. After a review of the latest research on railroad routing in large networks, the RRM was refined and tailored to the problem of finding likely routes and estimating fully allocated carrier costs for coal shipments. A new RRM routing algorithm finds routes which satisfy the dual railroad objectives of maximizing the carrier's share of total shipment revenue and minimizing cost. Five utilities tested and demonstrated the new RRM and data base in a series of case studies. These utilities provided data on 38 coal moves with haul distances of 200 to 1700 miles, including a mixture of both existing and prospective movements.more » The RRM was found to produce credible results. Full and effective use of these improved tools for railroad routing and costing has been facilitated through additional work to develop an interactive system with improved data base management capabilities and expanded cost estimating features.« less" @default.
- W61032988 created "2016-06-24" @default.
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- W61032988 date "1986-08-01" @default.
- W61032988 modified "2023-09-27" @default.
- W61032988 title "Railroad routing and costing. Final report" @default.
- W61032988 hasPublicationYear "1986" @default.
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