摘要
基于跟车模型的特点,提出了跟车模型的动能变化公式,利用该公式研究换道概率对各车辆动能的影响.数值实验结果表明,换道概率和相对速度对各车辆动能产生较大影响,但换道概率和相对速度会分别降低其动能变化频率和幅度.此外,系统增加的平均动能会随着系统最大换道概率的增加而降低.
Based on the properties of the car-following model,we present in this paper a formula of the kinetic energy change and use the formula to study the effect of the lane changing on the kinetic energy of the system. The numerical results show that the lane changing probability and the relative velocity have great effect on the kinetic energy,but the lane changing probability and the relative speed will respectively lessen the frequency and amplitude of the change of the kinetic energy. In addition,the enhanced average kinetic energy of the system will decrease with the increase of its maximum lane changing probability.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2010年第9期6003-6008,共6页
Acta Physica Sinica
基金
教育部新世纪优秀人才支持计划(批准号:NCET-08-0038)
国家自然科学基金(批准号:70701002
70971007和70521001)
国家重点基础研究发展计划(批准号:2006CB705503)资助的课题~~
关键词
交通流
跟车模型
换道概率
动能
traffic flow
car-following model
lane changing probability
kinetic energy
