美国铁路行业货车运输的服务成本权衡

Mark H. Keaton
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引用次数: 33

摘要

铁路技术允许一列火车移动大量单独的货车。然而,由于列车的合并和分解,非专用单元列车或多式联运服务的车辆会出现相当大的延误。因此,铁路运营需要在集运经济和由此造成的延误之间进行权衡。更直接和/或更频繁的列车连接将增加成本,但减少运输时间。本文量化了几个具有代表性的美国铁路系统为一般载货交通提供一系列运输时间的成本。研究表明,大幅减少运输时间将需要大量增加列车接驳次数和运营成本。改变劳动合同以降低列车乘员成本将为提高服务水平提供一些激励,但单靠降低乘员成本并不能显著改善该行业载客部分的表现。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Service-cost tradeoffs for carload freight traffic in the U.S. rail industry

Railroad technology permits a single train to move a large number of individual freight cars. However, cars which are not in dedicated unit train or intermodal service experience considerable delay due to the consolidation and breakup of trains. Rail operations thus involve a tradeoff between the economies of shipment consolidation, and the resulting delays. More direct and/or more frequent train connections will increase costs, but reduce transit times. This article quantifies the cost of providing a range of transit times for general carload traffic for several representative U.S. rail systems. It shows that significant reductions in transit time will require a large increase in the number of train connections and operating cost. Changes in labor contracts to reduce train crew cost will provide some incentive for higher service levels, but reductions in crew cost alone cannot be expected to dramatically improve the performance of the carload segment of the industry.

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