高速公路隧道小半径圆曲线路段反光环有效性研究

Research on effectiveness of reflective rings for small radius circle curve road section of expressway tunnels

为定量分析高速公路隧道小半径圆曲线路段反光环线形诱导的有效性,首先,基于E-prime平台开展室内仿真模拟试验,并以弯道判断准确率和判断时间作为衡量驾驶员曲率感知能力的评价指标;然后,选择20名驾驶员作为被试,分别测量被试在不同行车场景条件下的数据;最后,统计分析试验数据。结果表明：当反光环的数目少于3个时,被试的弯道判断准确率与反光环数目显著正相关,判断时间与反光环数目显著负相关;当反光环数目多于3个时,被试的弯道判断准确率与反光环数目不再有显著的正相关性;且判断时间减少幅度不大。相比于布设4个线形诱导标志的方案,采用3个反光环的方案能够使驾驶员在更短的时间内对隧道小半径圆曲线路段的线形作出更为准确的判断。

In order to quantitatively analyze the effectiveness of the linear guidance of the reflective rings for the small radius circular curve section of expressway tunnels,firstly,indoor simulation tests were realized on the psychological software platform of E-prime,and the accuracy rate of curve judgment and judgment time were selected as the evaluation indexes of the driver＇s curvature perception ability. Twenty testees were put through the experiment to obtain test data. Finally,test data on the testees under different scene conditions were statistically analyzed. The results show that when the number of reflective rings is less than three,the accuracy rate of curve judgment is significantly positively correlated with the number of reflective rings,and there is a significant negative correlation between judgment time and the number ofreflective rings,that when the number of reflective rings is more than three,accuracy rate of curve judgment is no longer significantly positively correlated with the number of reflective rings,and the judgment time is not greatly reduced,and that compared with the tunnel driver ＇ s field of vision in the program with four chevron alignment sign,the use of three reflective rings in tunnels allows the driver to be capable of making a more accurate judgment of expressway tunnel＇s line in the small radius circular curve section more quickly.