Development and Validation of a Roundabout Entry Capacity Model Considering Pedestrians under Japanese Conditions
Development and Validation of a Roundabout Entry Capacity Model Considering Pedestrians under Japanese Conditions
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日本条件下考虑行人的环岛入口容量模型的开发和验证
DOI：
10.11175/eastsats.4.350
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发表时间：
2016
影响因子：
--
通讯作者：
Nobuto Kanbe
中科院分区：
文献类型：
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作者：
Hideki Nakamura;Shinji Okada;Nan Kang;Nobuto Kanbe
除循环流外，行人流是另一个显着影响环岛入口容量的关键冲突流。由于日本的空间有限，一些标准设计（例如物理分离岛）并不总是能够安装在环岛入口/出口处。我们通过在之前的研究中应用微观模拟来检查分流岛等几个影响因素对进入能力的影响。基于仿真结果提出了回归模型，该模型假设车辆在人行横道起点处给所有行人让路。本文利用在日本观察到的现场数据对回归模型进行了验证。通过添加反映驾驶员对行人遵守情况的参数来改进回归模型。验证结果表明，改进的模型对现场数据表现出良好的拟合度，结果表明环岛几何形状和交通流构成显着影响入口通行能力。
Besides circulating flow, pedestrian flow is another key conflict stream that significantly influences roundabout entry capacity. Due to limited space in Japan, several standard designs such as a physical splitter island cannot always be installed at the roundabout entry/exit. The impact of several influencing factors on entry capacity such as splitter islands was examined by applying a microscopic simulation to our previous research. A regression model was proposed based on the simulation results, which assumed that vehicles yielded to all pedestrians at the beginning of the crosswalk. In this paper, the regression model was validated using field data observed in Japan. The regression model was improved by adding a parameter to reflect drivers’ compliance with pedestrians. The validation results indicate that the improved model shows good fitness to the field data and the results imply that roundabout geometry and traffic flow composition significantly influence entry capacity.