Advanced stop boxes and their effect on traffic conflict rates between cyclists and turning vehicles

IF 2.4 3区 工程技术 Q3 TRANSPORTATION Journal of Transportation Safety & Security Pub Date : 2021-08-06 DOI:10.1080/19439962.2021.1960661
T. K. O. Madsen, Charlotte Tønning, A. V. Olesen, Tove Hels, H. Lahrmann
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引用次数: 1

Abstract

Abstract Advanced stop boxes (ASBs) (i.e., marked areas for cyclists in front of the stop line) are mentioned as a potential means to reducing the risk of crashes between cyclists and right-turning vehicles. This study estimates the safety effect of ASBs at signalised intersections using the log-odds method. Seven signalised intersections were filmed for 3,627 hours before and after constructing ASBs. Traffic conflicts were used as a surrogate for crashes. In total, the study found 644 traffic conflicts. The overall safety effect was not statistically significant: the conflict rate for right-hook conflicts decreased by 6% (p = 0.72), and for left-hook conflicts it increased by 21% (p = 0.26). The results differed at the seven sites, and there were only a few statistically significant results. At one site, the conflict rate of cyclists vs. right-turning vehicles decreased significantly, while it significantly increased at another site. One of the seven sites showed a significant increase in the conflict rate of cyclists vs. left-turning vehicles. A likely explanation is that few conflicts occur during the early green phase. In addition, the use rate of the ASB was low (0–2.7%).
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先进停车箱及其对骑自行车者与转弯车辆交通冲突率的影响
高级停车箱(asb)(即在停车线前为骑自行车的人标记的区域)被认为是降低骑自行车者和右转车辆之间碰撞风险的潜在手段。本研究使用对数赔率法估计了信号交叉口asb的安全效应。7个信号交叉口在asb建设前后拍摄了3627小时。交通冲突被用来代替交通事故。该研究总共发现了644起交通冲突。总体安全效果无统计学意义:右勾拳冲突的冲突率降低了6% (p = 0.72),左勾拳冲突的冲突率增加了21% (p = 0.26)。结果在七个地点有所不同,只有少数具有统计学意义的结果。在一个地点,骑自行车者与右转车辆的冲突率显著降低,而在另一个地点则显著增加。其中一个地点显示骑车者与左转车辆的冲突率显著增加。一个可能的解释是,在早期的绿色阶段很少发生冲突。此外,ASB的使用率较低(0-2.7%)。
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CiteScore
6.00
自引率
15.40%
发文量
38
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