A Structured Flexible Transit System for Low-Demand Areas
A Structured Flexible Transit System for Low-Demand Areas
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DOI：
10.1016/j.trb.2011.07.014
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
S. Nourbakhsh;Y. Ouyang
中科院分区：
文献类型：
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作者：
S. Nourbakhsh;Y. Ouyang
传统的公共交通结构设计包含固定的公交路线和预定的公交车站。本文提出了一种可选择的灵活路线交通系统，其中每辆公共汽车被允许穿过预定的区域为乘客提供服务，而这些公共汽车服务区共同形成一个类似于轮辐和网格网络的混合“宏伟”结构。在理想的广场城市中，我们分析了该系统的代理成本和用户成本组成，寻求最优的网络布局、每辆公交车的服务面积和公交车车头时距，以使系统总成本最小。我们将拟议的交通系统的性能与可比较的系统（例如，固定路线交通网络和出租车服务）进行比较，并展示每种系统在特定乘客需求水平下的优势。研究发现，在低至中等需求水平下，柔性路由系统的系统成本趋于最低。
Public transit structure is traditionally designed to contain fixed bus routes and predetermined bus stations. This paper presents an alternative flexible-route transit system, in which each bus is allowed to travel across a predetermined area to serve passengers, while these bus service areas collectively form a hybrid “grand” structure that resembles hub-and-spoke and grid networks. We analyze the agency and user cost components of this proposed system in idealized square cities and seek the optimum network layout, service area of each bus, and bus headway, to minimize the total system cost. We compare the performance of the proposed transit system with those of comparable systems (e.g., fixed-route transit network and taxi service), and show how each system is advantageous under certain passenger demand levels. It is found out that under low-to-moderate demand levels, the proposed flexible-route system tends to have the lowest system cost.