基于区域协调控制的信号配时优化与仿真
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摘要
针对我国城市交通采用单点信号控制系统容易造成拥堵的问题,提出采用区域信号协调控制方法对交叉口信号配时进行优化。在分析单点信号控制和区域信号协调控制相关理论的基础上,以兰州市安宁区区域路网为例,分别以两种信号控制方案对路网实际交通流量进行计算,得出路网各交叉口的相位配时。最后,利用VISSIM软件进行实例分析,对两种信号控制方式的配时方案进行仿真,对比分析其交通效益。结果表明:相对于单点信号控制,区域信号协调控制配时方案可以使总行程时间缩短95. 7 s,平均排队长减少2. 4 m,总延误减少82. 7 s,能显著提高城市路网的通行能力,在一定程度上缓解交通拥堵问题。
Aiming at the problems existing in the isolated intersection control system of urban traffic in China, an areawide control method was proposed to optimize the intersection signal timing. Based on analyzing the theory of isolated intersection control and area-wide control, the regional network of Lanzhou Anning District was taken as an example, two kind of signal timing schemes were calculated according to the actual data, and the phases of the corresponding intersection were obtained. Finally, VISSIM was used to analyze the traffic benefits of the two timing schemes. The results show that compared with isolated signal control, the area-wide control can shorten the total travel time by 95. 7 s, reduce the average queue length by 2. 4 m, and decrease the total delay by 82. 7 s. Area-wide control can significantly improve the traffic capacity of road network and alleviate traffic congestion to a certain degree.
Aiming at the problems existing in the isolated intersection control system of urban traffic in China, an areawide control method was proposed to optimize the intersection signal timing. Based on analyzing the theory of isolated intersection control and area-wide control, the regional network of Lanzhou Anning District was taken as an example, two kind of signal timing schemes were calculated according to the actual data, and the phases of the corresponding intersection were obtained. Finally, VISSIM was used to analyze the traffic benefits of the two timing schemes. The results show that compared with isolated signal control, the area-wide control can shorten the total travel time by 95. 7 s, reduce the average queue length by 2. 4 m, and decrease the total delay by 82. 7 s. Area-wide control can significantly improve the traffic capacity of road network and alleviate traffic congestion to a certain degree.
引文
[1]吴兵,李晔.交通管理与控制[M].北京:人民交通出版社,2009:150-170.
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[7]朱彤,谢培,郭春林,等.交叉口绿灯信号倒计时因素对车速的影响[J].长安大学学报(自然科学版),2012,32(4):70-75.
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[9]高云峰,胡华,韩皓,等.城市道路交叉口群信号协调控制多目标优化与仿真[J].中国公路学报,2012,25(6):129-134.
[10]臧利林,朱文兴.基于子区域交通流优化的交叉口信号控制研究[J].中国公路学报,2012,25(6):136-139.
[11]李华.城市区域交通信号协调控制策略与方法研究[D].广州:华南理工大学,2015:59-75.
[12] WONG S C, WONG W T, LEUNG C M, et al. Group-based optimization of a time-dependent TRANSYT traffic model for area traffic control[J]. Transportation Research Part B:Methodological, 2002, 36(4):291-312.
[13] SCHMOCKER J D, AHUJA S, BELL M G H. Multi-objective signal control of urban junctions:framework and a London case study[J]. Transportation Research Part C:Emerging Technologies, 2008, 16(4):454-470.
[14]刘灿齐.城市道路网络交通信号协调控制的优化[J].同济大学学报(自然科学版),2004,32(8):1000-1004.
[15]孙建平.基于Agent的城市交通区域协调控制及优化研究[D].长春:吉林大学,2004:15-44.
[2]臧利林,贾磊,罗永刚.交通干线相邻交叉口动态协调控制研究[J].公路交通科技,2007,24(7):103-106.
[3]常云涛,彭国雄.基于遗传算法的城市干道协调控制[J].交通运输工程学报,2003,3(2):106-112.
[4] ABU-LEBDEH G, BENEKOHAL R F. Development of traffic control and queue management procedures for oversaturated arterial[J]. Transportation Research Record, 1997, 1630:119-127.
[5]吕斌,牛惠民.随机条件下单点交叉口信号配时优化[J].交通运输工程学报,2010,10(6):116-120.
[6]孙强,马国荣.用户均衡和信号控制自适应组合模型[J].长安大学学报:(自然科学版),2010,30(5):85-88.
[7]朱彤,谢培,郭春林,等.交叉口绿灯信号倒计时因素对车速的影响[J].长安大学学报(自然科学版),2012,32(4):70-75.
[8]庄宏斌,周亚平,曹宪生.基于改进遗传算法的区域交通信号配时优化[J].交通运输系统工程与信息,2012,12(4):57-63.
[9]高云峰,胡华,韩皓,等.城市道路交叉口群信号协调控制多目标优化与仿真[J].中国公路学报,2012,25(6):129-134.
[10]臧利林,朱文兴.基于子区域交通流优化的交叉口信号控制研究[J].中国公路学报,2012,25(6):136-139.
[11]李华.城市区域交通信号协调控制策略与方法研究[D].广州:华南理工大学,2015:59-75.
[12] WONG S C, WONG W T, LEUNG C M, et al. Group-based optimization of a time-dependent TRANSYT traffic model for area traffic control[J]. Transportation Research Part B:Methodological, 2002, 36(4):291-312.
[13] SCHMOCKER J D, AHUJA S, BELL M G H. Multi-objective signal control of urban junctions:framework and a London case study[J]. Transportation Research Part C:Emerging Technologies, 2008, 16(4):454-470.
[14]刘灿齐.城市道路网络交通信号协调控制的优化[J].同济大学学报(自然科学版),2004,32(8):1000-1004.
[15]孙建平.基于Agent的城市交通区域协调控制及优化研究[D].长春:吉林大学,2004:15-44.