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首页> 外文期刊>Promet-traffic & transportation >A NEW TRAFFIC CONFLICT MEASURE FOR ELECTRIC BICYCLES AT INTERSECTIONS
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A NEW TRAFFIC CONFLICT MEASURE FOR ELECTRIC BICYCLES AT INTERSECTIONS

机译：交叉口电动自行车的新交通冲突措施

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摘要

As electric bicycles (e-bikes) are becoming popular in China, concerns have been raised about their safety conditions. A traffic conflict technique is commonly used in traffic safety analysis, and there are many conflict measures designed for cars. However, e-bikes have high flexibility to change speed and trajectories, which is different from cars, so the conflict measures defined for e-bikes need to be independently explored Based on e-bike driving characteristics, this paper proposes a new measure, the Integrated Conflict Intensity (ICI), for traffic conflicts invoking e-bikes at intersections. It measures the degree of dangerousness of a conflict process, with consideration of both conflict risk and conflict severity. Time to collision is used to measure the conflict risk Relative kinetic energy is used to measure the conflict severity. ICI can be calculated based on video analysis. The method of determining ICI thresholds for three conflict levels (serious, less serious, and slight) and two conflict types (conflicts between two e-bikes, and conflicts between an e-bike and a car) is put forward based on the questionnaires about safety perception of e-bike riders, which is regarded as the criterion of e-bike safety conditions at intersections. The video recording and a questionnaire survey about conflicts involving e-bikes at intersections have been conducted, and the unified thresholds applicable to different intersections have been determined It is verified that ICI and its thresholds meet the criterion of e-bike safety conditions. This work is expected to be used in the selection of intersections for safety improvement of e-bike traffic.
机译：随着电动自行车（E-BIKES）在中国变得流行，对其安全条件提出了担忧。交通冲突技术通常用于交通安全分析，并且为汽车设计了许多冲突措施。然而，E-Bikes具有更高的灵活性来改变速度和轨迹，这与汽车不同，因此需要根据电子自行车驾驶特征独立探索为电子自行车定义的冲突措施，提出了一种新的措施综合冲突强度（ICI），用于在交叉路口调用电子自行车的交通冲突。考虑到冲突风险和冲突严重程度，它测量冲突过程的危险程度。碰撞时间用于测量冲突风险相对动能用于测量冲突严重性。 ICI可以根据视频分析计算。确定三个冲突水平的ICI阈值（严重，严重，严重和轻微）和两种冲突类型（两个电子自行车之间的冲突，以及电子自行车与汽车之间的冲突）都是根据问卷提出的电子自行车骑手的安全看作是作为交叉口的电子自行车安全条件的标准。已经进行了关于涉及交叉路口的E-骑自行车冲突的视频录制和问卷调查，并确定了适用于不同交叉路口的统一阈值，验证了ICI及其阈值符合电子自行车安全条件的标准。这项工作有望用于选择E-Bike交通的安全改进的交汇处。

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