限制绿灯跟进的十字路口交通流模拟  被引量:1

Traffic Flow Simulation Based on Limitting Green Follow-Up on Crossroads

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作  者:李建鹰[1,2] 左忠义[1] 

机构地区:[1]大连交通大学交通运输工程学院,辽宁大连116028 [2]大连市计算机中等职业专业技术学校,辽宁大连116034

出  处:《大连交通大学学报》2013年第5期6-11,共6页Journal of Dalian Jiaotong University

摘  要:为提高对现有交通资源的利用和提供更加有效的交通管理方法,阐述了一种城市交叉口基于信号灯和元胞自动机的智能控制系统的框架结构.建立了由两个单车道构成的单个十字路口交通流模型,一条东向行驶车道和一条北向行驶车道.在周期边界条件下,系统中行驶的车辆按照绿灯跟进的新规则在信号灯管制下并行更新.模拟的结果表明:在车流密度较小时,绿灯跟进对十字路口流量以及车流的平均速度影响不大;而在车流密度较大的高峰期,禁止绿灯跟进规则可以避免十字路口全局拥堵的状况.To improve the use of finite resources and modify the measure used in traffic control, a frame struc- ture of intelligent traffic control system based on signal light and cellular automation was analyzed. A crossroad of the traffic flow model is established by two one-lane roads cross each other with both having the east-bound and the north-bound. Under the period boundary conditions, the parallel update is carried out for the eastbound and northbound roads with green follow-up rules and traffic lights control. The result shows that adopting green follow-up principle will hardly influence the traffic flow rate of the crossroad as well as the speed of automotives when the traffic is not heavy. However, that principle will significantly alleviate traffic jam once there is a lot of traffic during peak time.

关 键 词:绿灯跟进 十字路口 元胞自动机 交通流 

分 类 号:U491.112[交通运输工程—交通运输规划与管理]

 

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