摘要
为提高高速公路小客车变换车道时的安全性,通过检测小客车的运行速度、驾驶员心理生理反应参数,采用随机序列函数法将驾驶员心率随机变量转变为相关函数,并应用离散的傅里叶变换方法分析驾驶员行车心率的功率谱;研究驾驶员变道行为与速度、交通量和驾驶员心理生理反应的关系,构建高速公路小客车驾驶员变道行为模型,描述驾驶员行车时的心理状态,判断其安全性。研究表明:小客车自由变道和超车变道时,驾驶员瞳孔尺寸小于5.0 mm,心率增长率小于27%,行车安全性较高;争抢变道和强行变道时,驾驶员表现为紧张甚至恐惧,容易发生误操作,安全性较差。
In order to improve the safety of lane change behavior of freeway car drivers,data about running speed of the passenger cars,the parameters of drivers＇ psychological and physiological reactions were collected by field testing,the drivers＇ heart rate random variables were transformed into correlation function by using the random sequence function,and a power spectrum analysis was made for driving heart rate by using the discrete Fourier transform method. Relationships among lane change behavior,driving speed,traffic volume and drivers＇ physiological responses were studied. A model was built for freeway car driver lane change behavior. Mental states of the driver were described. Research shows that in the process of free lane change or overtaking lane change,pupil size of the car driver is less than 5. 0 mm,heart rate growth is less than 27% with higher traffic safety,and that in the process of scrambling to change lane or in the process of rude lane change the driver will feel strained and even fear,which may make the driver mishandle the car.
出处
《中国安全科学学报》
CAS
CSCD
北大核心
2015年第11期92-98,共7页
China Safety Science Journal
基金
国家自然科学基金资助(51108011)
关键词
变道行为
高速公路
交通安全
心理反应
变道模型
lane change behavior
freeway
traffic safety
psychological reaction
lane change model
