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Traffic Conflict Technique-Based Setting Method of Freeway Climbing Lane

机译：基于交通冲突技术的高速公路爬车道设置方法

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Speed of heavy vehicles is greatly reduced on upgrade sections due to their insufficient climbing capability, thus having great impact on traffic safety. Setting climbing lanes can solve this problem effectively. Considering China’s traffic composition and operational status, this paper proposed the traffic conflict technique-based setting method of freeway climbing lanes in order to set foundations for climbing lanes with the goal of promoting traffic safety. Based on large freeway upgrade section data and actual traffic characteristics, the paper built simulation models with VISSIM. 220 schemes were simulated by setting different road and traffic conditions of models. The paper then used Surrogate Safety Assessment Model (SSAM) to calculate traffic conflict, analyzed the influence of slope, slope length and mixed rate of heavy vehicles on traffic safety on upgrade sections. Finally, taking the reduction extent of the collision rate after setting climbing lanes as an indicator, this paper used K-means to classify the effectiveness level of the climbing lanes. The paper found the setting position and basis of the climbing lanes. The findings of this paper can provide support to effective decision making with regards to constructing future climbing lanes.
机译：重型车辆由于其爬坡能力不足而在升级路段上的速度大大降低，从而对交通安全产生重大影响。设置攀登车道可以有效解决此问题。考虑到中国的交通构成和运营状况，提出了基于交通冲突技术的高速公路攀登车道设置方法，以期为提高交通安全性奠定基础。基于大型高速公路升级路段数据和实际交通特征，本文使用VISSIM建立了仿真模型。通过设置不同的道路和交通状况模型对220个方案进行了仿真。然后，使用替代安全评估模型（SSAM）来计算交通冲突，分析了坡度，坡长和重型车辆的混合比对升级路段交通安全的影响。最后，以设置攀登车道后碰撞率的降低程度为指标，本文采用K-means对攀登车道的有效性水平进行分类。论文找到了攀登车道的设置位置和依据。本文的研究结果可为构建未来攀登车道的有效决策提供支持。

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