城市道路交通数据采集系统检测器优化布点研究

Study on Optimal Layout of Traffic Detector for Traffic Data Collection System in Urban Area

智能运输系统(ITS)被公认为是当前解决我国大城市交通拥挤和提高道路安全的有效手段。利用检测器收集交通数据是ITS的基本功能之一。如何在城市道路网中布设交通检测器是ITS建设时必须要研究的内容。本文通过对城市道路网基本路段交通流量的相似性分析,建立了路网交通检测器优化布点的数学模型。并通过一个算例,详细叙述了建模及求解的全过程。作者希望所述的检测器优化布点方法能为城市ITS建设中的此类研究提供一种新的思路。

Intelligent transportation system (ITS) is considered one of the advanced options to reduce congestion and improve safety in urban area. One of the basic function of ITS is to collect traffic data by detector. How to arrange the layout of traffic detector in urban road system is important when we develop ITS. Based on comparability analysis in traffic volume of basic road section of urban road system, this paper has set up mathematical model of the optimal layout of traffic detector for urban road system. A real example of application is also given to explain the whole process of how to set up model and to get its solution. The authors hope that this method will provide a new thought for the optimal layout of traffic detector in urban ITS development.