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首页> 外文期刊>Transportation research >A model of pedestrian delay at unsignalized intersections in urban networks
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A model of pedestrian delay at unsignalized intersections in urban networks

机译：城市网络无信号交叉口行人延误模型

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摘要

Delay is an important performance measure for pedestrian crossings considering their interactions with other road users. This study provides an improved analytical model to mathematically estimate pedestrian delay using renewal theory, which considers driver yielding and vehicle platooning. A generalized model is first provided to accommodate different traffic flow and driver behavior assumptions. Then the proposed model is developed on the basis of a mixture of free traffic and platooned traffic with consideration of driver yielding behaviors to better replicate field conditions in an urban setting. A second application using the HCM 2010 assumptions is also derived to compare it to the HCM 2010 model. Lastly, field data were collected and used for validation from two locations: Gainesville, FL and Washington, D.C. A simulation via MATLAB is performed to evaluate the model results for a variety of cases. The comparisons to the field data as well as the simulation confirm the applicability and accuracy of the proposed model. It is also found that the current HCM 2010 model overestimates the pedestrian delay compared with field data. (C) 2017 Elsevier Ltd. All rights reserved.
机译：考虑到行人交叉口与其他道路使用者的互动，延误是一项重要的性能指标。这项研究提供了一种改进的分析模型，可使用更新理论数学计算行人延误，其中考虑了驾驶员屈服和车辆排班。首先提供通用模型，以适应不同的交通流量和驾驶员行为假设。然后，在考虑到驾驶员屈服行为以更好地复制城市环境中的驾驶员屈服行为的基础上，基于自由交通和通行交通的混合体，开发了所提出的模型。还推导了使用HCM 2010假设的第二个应用程序，以将其与HCM 2010模型进行比较。最后，从两个地点收集现场数据并将其用于验证：佛罗里达州的盖恩斯维尔和华盛顿特区。通过MATLAB进行的仿真可以评估各种情况下的模型结果。与现场数据的比较以及仿真结果证实了所提出模型的适用性和准确性。还发现，与现场数据相比，当前的HCM 2010模型高估了行人延误。 （C）2017 Elsevier Ltd.保留所有权利。

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