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ALTERNATE CRITERIA IN LP SOLUTIONS OF PUBLIC TRANSPORT LINE PLANNING

机译:公共交通线规划LP解决方案中的替代标准

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摘要

In the paper, the public transportation line planning means planning of routes and frequencies of vehicles on them. In the world literature, different criteria are used in this context; mainly the variable costs of lines, the fixed costs of lines, the fixed plus variable costs of lines, the number of direct travellers, the total or average riding time and the total or average travelling time. The current paper adds two more: the total number of used vehicles (to be minimized when all passengers are transported) and relative excess of supply over demand (to be maximized without exceeding the number of available vehicles). Basic mathematical models for both cases are presented and the motivation of such approach is described including a brief excursion into the history of the Czech and Slovak research of line planning where the use of these objectives has arisen. Further, the basic models were modified for the cases of fourteen special practical requirements, e.g. heterogeneous vehicle fleet (= rolling stock), limitation of transfers, elastic demand, limited total number of lines, etc. The brief outline of the experience with practical use is added as well.
机译:在本文中,公共交通线规划是指规划其上的车辆的路线和频率。在世界文学中,在这种情况下使用了不同的标准。主要是线路的变动成本,线路的固定成本,线路的固定成本加上变动成本,直接旅行者的数量,总或平均乘车时间以及总或平均行驶时间。当前的文件增加了两个:二手车的总数(运输所有乘客时要减少到最少)和供大于求的相对过剩(要在不超过可用车数的情况下最大化)。给出了这两种情况的基本数学模型,并描述了这种方法的动机,包括简要介绍了捷克和斯洛伐克关于使用这些目标的线路规划研究的历史。此外,针对十四种特殊实际要求的情况,对基本模型进行了修改,例如异构车辆(=机车车辆),运输限制,弹性需求,有限的总行数等。还添加了实际使用经验的简要概述。

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