Based on the two-lane highway traffic model with a work zone presented previously, a new traffic model with a work zone under the control of traffic lights is proposed. The length of the waiting area for vehicles before traffic lights is recommended cautiously after numerical simulation. The relationship between the vehicles’ queuing time and the cycle of traffic lights is studied, and the cycle time of traffic lights is obtained also considering people’s endurance to the red light. It is found that the traffic lights are effective to ease the traffic congestion in the work zone when the density is medium, and help to eliminate the inducement of traffic accidents. On the other hand, the simulation results show that traffic lights are not needed in the work zone when the traffic density is small. It indicates that the traffic flow in the work zone area can be optimized by using appropriate traffic management when the traffic density varies.

中文翻译：

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考虑红绿灯影响的工作区路段交通流建模

在前文提出的带工作区的两车道高速公路交通模型的基础上，提出了一种新的带工作区的交通信号灯控制交通模型。红绿灯前车辆等候区长度经数值模拟后谨慎推荐。研究了车辆排队时间与红绿灯周期之间的关系，在考虑人对红灯耐受性的情况下，得到了红绿灯周期时间。研究发现，交通信号灯能有效缓解工作区密度中等时的交通拥堵，有助于消除交通事故的诱因。另一方面，仿真结果表明，当交通密度较小时，工作区不需要红绿灯。