基于T-Swarm理论的城市道路作业区交通流建模与仿真系统研究

我国很多城市正在进行大范围道路施工，产生了大量施工作业区。由于当前对城市道路作业区影响交通流的机理认识尚不清楚，更缺乏分析作业区交通流的数学模型和仿真系统，我国城市道路作业区面临着交通拥堵严重、交通事故频发、交通延误成本高等问题。鉴于此，本项目通过对城市道路作业区数据和交通流数据的深度分析和挖掘，揭示出作业区影响交通流的内在机理，并推演出作业区交通流区别于常规道路交通流的基本特点。然后，利用本项目提出的适用于城市道路作业区交通流建模的新理论——T-Swarm理论，建立可以反映城市道路作业区交通特点的交通流模型，打破现有交通流模型在研究作业区交通流时的局限。最后，以新建模型为基础搭建城市道路作业区交通流仿真系统，弥补现有软件在仿真作业区交通流时不能考虑作业区特征的缺点。本项目建立了城市道路作业区交通流的基础理论，也为城市交通建设和管理者提供了分析和优化城市道路作业区交通组织的仿真分析工具。

Wide road construction and rehabilitation in Chinese cities brings a large number of work zones on roads. So many urban work zones cause a series of problems including heavy congestion, frequent traffic accident and high travel delay cost. Researchers cannot answer how to solve these problems, because the mechanism of the influence of work zones on traffic flow is not clear yet and there is not a simulation system for traffic flow in work zones. This project attempts to derive the mechanism of the influence of urban work zones on traffic flow by analyzing the work zone data and traffic flow data and obtain the characteristics of traffic flow in urban work zones. Furthermore, the project proposes a new traffic flow model that can reflect the characteristics of the traffic flow in urban work zones based on a new traffic flow modeling theory developed by this project, T-Swarm Theory. The proposed model overcomes the difficulties of the existing traffic flow models in studying the traffic flow in urban work zones. By taking advantage of the proposed model, a simulation system of the traffic flow in urban work zones is constructed. The simulation system compensates the weakness of the absence of the work zone module in the existing traffic flow simulation tools. The project establishes the basic theory of the traffic flow in urban work zones, and provides a key simulation tool in analyzing and optimizing traffic organization in urban work zones for transportation agencies.