摘要
在跟驰过程中,后车驾驶员都是通过人体感觉器官获取前方邻近车辆速度或位置的变化信息来调整本车的运动,但是这些信息刺激只有超过特定阈值才能被后车驾驶员感知并做出反应.从驾驶员视角变化的潜在因素出发,以感知阈值作为驾驶员反应的临界条件为前提,并针对前车不同行驶工况下,建立基于驾驶员视角变化的车辆跟驰模型,得到相应情况下后车跟随加速度的表达式.分析结果表明:前车行驶状态与两车相对速度差的不同,后车跟随加速度也不相同,更符合实际交通流特征.
In the car following behavior, the followers become aware of the change in speed or position of the adjacent leader through human sense organs so as to adjust their own movement, which, however, depends on whether the information stimulation exceeds a certain angular velocity thresholds. This paper proposes a new car -following model after considering drivers＇visual angle and studying the critical condition of angular velocity thresholds in allusion to the kinds of driving condition of the leaders. What＇s more, the deduction of the acceleration equations by the following car is calculated. The analysis results show that the car following acceleration is not the same under the vehicle driving state with the relative speed difference between the two cars and the model fits the actual traffic flow better.
出处
《昆明理工大学学报（自然科学版）》
CAS
2015年第3期52-57,共6页
Journal of Kunming University of Science and Technology(Natural Science)
基金
国家自然科学基金项目(51268017)
关键词
交通流
跟驰模型
视角阈值
加速度
traffic flow
car - following
angular velocity thresholds
acceleration
