ABSTRACT

The work zones greatly change the traffic wave characteristics on the urban road and further significantly influence the signal timing schemes. However, studies on the traffic wave under the influence of work zones are limited. This paper attempts to investigate how a work zone changes the traffic wave propagation characteristics. The traffic wave profiles for different scenarios are analyzed to explore the propagation characteristics of the traffic waves. Then the novel models for the various traffic waves are proposed. Furthermore, a real case study is conducted to evaluate the performance of the proposed models. The study indicates on the road with the work zone, the lane-blockage phenomenon is more likely to occur, which can be improved by releasing the left-turn vehicles before the through-right vehicles in the intersection signal scheme. The case study shows the proposed models have good performance, with the MAPE value of 20%.

摘要

工作区极大地改变了城市道路上的交通波特征，并进一步显着影响信号配时方案。然而，对工作区影响下的交通波的研究是有限的。本文试图研究工作区如何改变交通波传播特性。分析不同场景的交通波剖面，探索交通波的传播特性。然后提出了各种交通波的新模型。此外，还进行了真实案例研究以评估所提出模型的性能。研究表明，在有工作区的道路上，车道阻塞现象更容易发生，可以通过在交叉路口信号灯方案中将左转车辆先于右转车辆释放来改善这种情况。