摘要
针对传统协调控制模型中存在的公共周期限制的问题,提出了对不同信号周期时长的交叉口实行大周期内协调控制的思路,并根据车辆到达交叉口所遇到的信号状态,给出了大周期内路段行程时间的模型。以2个交叉口之间的路段行程时间最短为信号协调控制优化的目标,考虑大周期内车辆不溢出路段的条件,构造出对不同信号周期时长的2个交叉口之间进行协调控制的模型。通过模型的多次应用实现了多个交叉口协调控制方案的求取。最后根据具体算例说明了多交叉口协调控制模型的具体实施方法,同时也指出了不同周期交叉口之间进行协调控制的必要性和合理性。
To cope with the public cycle restriction in traditional signal coordinated control method, the idea that intersections＇ signal with different cycles should be coordinated in large cycle is proposed. According to the signal state encountered by vehicles before arriving intersection, a model of road section travel time in large cycle is given. Using the shortest link travel time between 2 intersections as the goal of signal coordinated control optimization, the model of coordinated control with different cycles between two intersections is constructed, considering the condition that vehicles should not overflow road section in large cycle. Then, the coordinated control scheme of multiple intersections is obtained after multiple application of the model. Finally, the way of utilizing the coordinated control model of multiple intersections is shown by the specific example, which shown that the coordinated control between intersections is necessary and reasonable.
出处
《公路交通科技》
CAS
CSCD
北大核心
2013年第8期118-122,146,共6页
Journal of Highway and Transportation Research and Development
基金
国家自然科学基金项目(61174184
51108191)
关键词
交通工程
协调控制
模型
信号交叉口
大周期
traffic engineering
coordinated control
model
signal intersection
large cycle
