As cities have grown more dispersed and auto-oriented, demand for travel has become increasingly difficult to meet via public transit. Public transit ridership, particularly bus ridership, has recently been on the decline in many urban areas in Canada and the United States, and many agencies have either undergone or are planning comprehensive bus network redesigns in response. While comprehensive bus network redesigns are not novel to public transit, network redesigns are commonly being considered in cities to optimize operational costs and reverse downward trends in transit ridership. For cities considering a comprehensive bus network redesign, there is currently no comprehensive easy-to-follow planning process available to guide cities through such a major undertaking. In light of that, this study presents a methodology to guide transport professionals through the planning process of a bus network redesign, using Longueuil, Quebec, as a case study. Currently, Longueuil operates a door-to-door network, and the goal is to move to a transfer-based, high-frequency service while keeping the existing number of buses constant. A variety of data sources that capture regional travel behavior and network performance are overlaid using a GIS-based grid-cell model to identify priority bus corridors. A series of analyses to measure and quantify anticipated and actual improvements from the proposed bus network redesign are conducted, including coverage analysis, change in accessibility to jobs, and travel time analysis. Accessibility to jobs was the key performance measure used in this analysis and is presented as a useful tool for planners and transit agencies to obtain buy-in for the proposed plan. This methodology provides transport professionals with a flexible and reproducible guide to consider when conducting a bus network redesign, while ensuring that such a network overhaul maximizes the number of opportunities that residents can access by transit and does not add an additional burden to an agency’s operating budget.

中文翻译：

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规划一个基于高频传输的公交网络：我们如何到达那里？

随着城市变得更加分散和以汽车为导向，通过公共交通满足出行需求变得越来越困难。加拿大和美国的许多城市地区的公共交通乘客量，尤其是公共汽车乘客量最近一直在下降，许多机构已经或正在计划对公共汽车网络进行全面重新设计以应对。虽然全面的公交网络重新设计对公共交通来说并不新鲜，但城市中通常会考虑重新设计网络以优化运营成本并扭转公交客流量的下降趋势。对于考虑全面重新设计公交网络的城市，目前还没有全面的、易于遵循的规划流程来指导城市完成这样一项重大工程。有鉴于此，本研究以魁北克省隆格伊为案例研究，提出了一种指导运输专业人员完成公交网络重新设计的规划过程的方法。目前，Longueuil 运营着门到门网络，目标是在保持现有巴士数量不变的同时转向基于换乘的高频服务。使用基于 GIS 的网格单元模型覆盖捕获区域出行行为和网络性能的各种数据源，以识别优先公交走廊。进行了一系列分析，以衡量和量化拟议的公交网络重新设计的预期和实际改进，包括覆盖率分析、工作可达性的变化和旅行时间分析。工作的可及性是本分析中使用的关键绩效衡量标准，并作为规划者和交通机构获得对拟议计划的支持的有用工具。这种方法为运输专业人士提供了一个灵活且可重复的指南，以供在进行公交网络重新设计时考虑，同时确保此类网络大修最大限度地增加居民可以通过公交获得的机会，并且不会给机构的运营预算增加额外的负担.