OPTIMAL DESIGN OF TRANSIT SHORT-TURN TRIPS
OPTIMAL DESIGN OF TRANSIT SHORT-TURN TRIPS
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DOI：
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发表时间：
1989
影响因子：
1.7
通讯作者：
A. Ceder
中科院分区：
文献类型：
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作者：
A. Ceder
一套程序，提出了有效地设计公交时间表的行程，开始超越路线出发点，或终止之前的路线到达点，或两者（“短转行程”）。在实践中，公交频率是在最重负载的路段确定的，而在其他路段，由于部分负载（空座位），运营可能是低效的。公交调度员试图通过人工构建短转弯行程来克服这个问题，以减少执行公交时间表所需的车辆数量。本文提出的研究是为了改善和自动化这一任务，确定可行的短转弯点，推导出给定的时间表所需的最小车队规模，并调整在每个短转弯点的发车数量所需的负载数据（前提是与乘客等待时间相关的最大车头时距最小化）。其他目标包括最大限度地减少短途旅行的次数，同时确保保持最小的车队规模，并制定车辆时间表（街区）。一个简单的例子是用来说明整个程序开发。
A set of procedures is presented for efficiently designing transit timetables with trips that are initiated beyond the route departure point, or terminated before the route arrival point, or both ("short-turn trips"). In practice, transit frequency is determined at the route segment with heaviest load, whereas at other segments the operation may be inefficient because of partial loads (empty seats). Transit schedulers attempt to overcome this problem by manually constructing short-turn trips to reduce the number of vehicles required to carry out the transit timetable. The study presented herein was meant to improve and automate this task by identifying feasible short-turn points, deriving the minimum fleet size required by a given schedule, and adjusting the number of departures at each short-turn point to that required by the load data (provided that the maximum headway associated with passenger wait time is minimized). Other objectives included minimizing the number of short-turn trips while ensuring that the minimum fleet size is preserved and creating vehicle schedules (blocks). A simple example is used throughout to illustrate the procedures developed.