山区公路弯道会车过程驾驶人心生理及行为耦合特性分析  

Coupling Analysis of Drivers’Psychology,Physiology and Behavior Characteristics on Mountain Road Curves

作　　者：胡汇 HU Hui(College of Traffic and Transportation,Chongqing Jiaotong University,Chongqing 400064,China)

机构地区：[1]重庆交通大学交通运输学院,重庆400064

出　　处：《科技和产业》2023年第15期169-174,共6页Science Technology and Industry

摘　　要：为探究双车道山区公路弯道会车过程驾驶人心生理及行为耦合特性,通过开展实车试验,分析弯道会车场景下熟练及非熟练驾驶人的视觉特性、心率及速度变化特点,综合评价会车过程不同阶段驾驶人的驾驶负荷变化规律。研究结果表明:山区公路弯道会车过程中,熟练驾驶人注视点偏向道路前方较远位置,且注视范围广,对会车车辆注视点多于非熟练驾驶人,非熟练驾驶人单个注视点持续时间较长,重复注视同一目标区域概率较高,注视点集中偏向道路前方近处位置;两类驾驶人弯道驾驶负荷均表现为过弯阶段>出弯阶段>入弯阶段,入弯阶段驾驶负荷受对向来车影响不显著,过弯和出弯阶段受对向来车显著影响,且熟练驾驶人弯道会车各阶段驾驶负荷均低于非熟练驾驶人;两类驾驶人会车通过弯道平均速度均有所降低,熟练驾驶人在入弯和过弯阶段速度变化受对向来车影响不显著,非熟练驾驶人弯道会车各阶段速度变化均受对向来车显著影响。相关研究结果可为山区公路交通安全防控技术优化及智能驾驶辅助设计等提供理论依据。To explore the psychophysiological and behavioral characteristics of different types of drivers in the process of meeting on a two-lane highway curve,a driving test was conducted to collect the driver's vision,heart rate and vehicle operation parameters.By analyzing the visual characteristics,heart rate and speed change characteristics of the skilled and unskilled drivers in the scene of meeting at a curve,drivers’driving loads in different stages of the meeting process are comprehensively evaluated.The results show that during the process of meeting on the curve of mountain roads,the skilled drivers tend to focus more on the far position in front of the road,with a wide range of focus on meeting vehicles rather than the unskilled drivers.The duration of a single fixation point of the unskilled drivers is longer,the probability of repeatedly focusing on the same target area is higher,and the fixation points are focusing on the near position in front of the road.The driving loads of two types of drivers in the curve are shown as the stage of passing curve>exiting curve>entering curve.The driving loads in the stage of entering curve are not significantly affected by oncoming vehicles,and both the stage of passing curve and exiting curve are significantly affected by oncoming vehicles,and the driving loads of the skilled drivers in each stage are lower than that of the unskilled drivers.The average speeds of two types of drivers are reducing during curves and the speed change of the skilled drivers in the entering and passing stages is not significantly affected by the oncoming vehicles,while the speed change of the unskilled driver in each stage is significantly affected by the oncoming vehicles.The related research results can provide a theoretical basis for the optimization of mountain road safety prevention and intelligent driving assistant design.

关 键 词：交通安全 山区公路 弯道会车 驾驶人心生理 驾驶负荷 

分 类 号：U491.254[交通运输工程—交通运输规划与管理]