基于车道选择的交叉口进口道导向系统改善方法

Improved Method of Intersection Lane Guidance System Based on Lane Selection

我国城市信号交叉口车道导向信息缺失或不明显现象普遍,导致车辆在进口道渐变段进行大量的换道行为。为了提高交叉口的通行效率,降低交通事故发生的概率,充分利用交叉口进口道的路侧、路面、路上空间,提出构建色彩诱导视觉环境改善方法。利用3ds Max软件对信号交叉口进口道进行仿真实验,利用E-prime软件进行信息感知心理物理实验,以主观获取车道信息反应时间作为实验度量指标。结果显示:外界因素一样,改善前后驾驶员车道信息平均视认时间分别为2.820±1.050 s,1.282±0.596 s,车道信息辨识准确率分别为77.5%,90%。改善后驾驶员车道信息感知效率明显高于改善前,驾驶员可提前选择目标车道,对交叉口的通行效率与安全有显著改善。

The absence of lane guidance information in urban signalized intersection is common in China, causing a large number of lane-changing behaviors in inlet transition section. To improve the traffic efficiency of intersections and reduce the probability of traffic accidents, make full use of road space, a method for constructing color guidance visual environment is proposed. The traffic simulation model of signalized intersection lane was established by the 3 ds Max software, and the information perception psycho-physical experiment was completed by E-prime software. Then the reaction time of lane information was regarded as the measurement indicator. The research results show that under the same external factors, the average reaction time of lane information before and after improvement is respectively 2. 820±1. 050 s and 1. 282±0. 596 s, and its accuracy is respectively 77. 5% and 90%. The drivers＇ perception ability on lane information has been improved obviously and they are able to select the target lane ahead of time, which may significantly improve the traffic efficiency and safety of intersections.