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为探究道路交叉口货车右转弯过程中货车司机的视线盲区形成机制,以及货车右转对交叉口安全的影响,运用Matlab软件建立货车右转弯模型。基于对载重货车内轮差的特性分析,以及模型车试验和现场大型货车转弯试验结果,修正转弯轨迹,较精准地模拟货车转弯过程。提出盲区面积计算方法和道路交叉口安全性评估指标。对右转分离式路口、缓转弯十字路口和急转弯十字路口进行基于货车右转盲区的安全性评估。结果表明:6轴载重货车的右转弯盲区面积达40.39 m~2,与常见的普通十字路口相比,右转分离式路口有较高行车安全性。
In order to explore the formation mechanism of the sight driver blind sight and the right turn of the truck at the intersection, the Matlab software was used to establish the right turn model of the truck. Based on the analysis of the characteristics of the wheel carriage in truck and the results of model car test and large-scale truck turning test in the field, the turning trajectory is corrected and the turning process of truck is simulated more accurately. Proposed blind area calculation method and road intersection safety evaluation index. On the right to the separation of junctions, slow turn corners and sharp turn corners on the basis of safety assessment of the right turn blind spot truck. The results show that the area of the right turning blind spot on the 6-axle truck reaches 40.39 m ~ 2, which has higher driving safety compared with the common crossroads.