交通信息与安全2024，Vol.42Issue(6)：123-132,10.DOI:10.3963/j.jssn.1674-4861.2024.06.013
作业区可变信息标志播放周期对驾驶及认知行为的影响
Effects of the Display Cycle of Variable Message Signs on Driving and Recognition Behavior in Work Zones
摘要
Abstract
The display cycle is one of the most important characteristics of variable message signs(VMS).Howev-er,the design standards of VMS display cycles are not mentioned in the national standard GB 5768:Road Traffic Signs and Markings.In order to provide valuable evidences,a driving simulation experiment considering a single ve-hicle is conducted under the condition of work zones on urban roads.The graphic and animated loop are designed based on the theme of"construction ahead,please change lanes".Three display cycle scenarios of 1,2,and 4 s are simulated.The speed,acceleration,lateral position,recognition distance,comprehension time and reaction time of 32 drivers are collected.The effects of the VMS display cycles are evaluated from two aspects:driving behavior and recognition behavior.Through dimensionless processing,the comprehensive evaluation scores for the three display cycles are calculated.Finally,based on these scores the best design of the VMS display cycle among the scenarios is selected.Through the experiment it is found that,comparing the speed in front of the VMS location to the normal sections,the travel speed in the 2 s scenario is reduced most with the reduction of 15.77%.Additionally,the acceler-ation in the 2 s scenario also shows the smallest value.Moreover,the lane-changing distance is the shortest in the 2 s scenario.Based on the results,it can be implied that the 2 s scenario not only provide better deceleration perfor-mance but also prompting drivers to complete lane-changing behavior quickly to reduce the possibility of conflicts.In terms of recognition,the recognition distance in the 2 s scenario is the farthest with an average value of 313.01 m.Although the fastest comprehension is not achieved in the 2 s scenario,the reaction time in this scenario is the shortest.It is indicated that the 2 s scenario can provide farther recognition distance and guide drivers to react promptly.Through calculating the comprehensive evaluation scores,it is concluded that the 2 s VMS performed best among the three designed display cycles.关键词
交通标志/可变信息标志/播放周期/驾驶模拟实验/城市道路作业区Key words
traffic signs/variable message signs/display cycle/driving simulation experiment/urban road work zone分类
交通工程引用本文复制引用
康楠,蔡世远,罗文婷,张世燕..作业区可变信息标志播放周期对驾驶及认知行为的影响[J].交通信息与安全,2024,42(6):123-132,10.基金项目
国家重点研发计划项目(2021YFB3202901)资助 （2021YFB3202901）
