Ugarte M F, Briz S, Durán L
Electronics and Communications Department, Universidad Europea de Madrid, Madrid, Spain.
Rev Sci Instrum. 2011 Feb;82(2):025113. doi: 10.1063/1.3543819.
Knowing the number, type, and velocity of the vehicles that drive along a road is extremely important to manage efficiently the traffic flow and also to estimate the environmental impact that the road may have in the surroundings. In this work the development and preliminary tests for a nonintrusive instrument and method for traffic characterization have been carried out. The system is part of a methodology to estimate the contaminants emitted to air due to urban and suburban road traffic. Based on a set of ultrasonic sensors, the system has shown reliability and accuracy in the determination of the number, type, and velocity of vehicles in a suburban road with several lanes and two ways. The success of this system lies on the method and data processing which overcomes the intrinsic noise problems of ultrasonic sensors. The developed system is easy to install and does not interfere with the road traffic. It is also of low cost, has no moving parts, and requires small power supply. The proposed system is an ideal tool to perform traffic studies where portability and low costs are required, for example, in environmental impact assessments studies.
了解沿道路行驶的车辆数量、类型和速度对于有效管理交通流量以及估算道路可能对周边环境造成的影响极为重要。在这项工作中，已开展了一种用于交通特征描述的非侵入式仪器及方法的开发和初步测试。该系统是估算城市和郊区道路交通向空气中排放污染物的方法的一部分。基于一组超声波传感器，该系统在确定具有多条车道和双向行驶的郊区道路上的车辆数量、类型和速度方面已显示出可靠性和准确性。该系统的成功在于其方法和数据处理，克服了超声波传感器固有的噪声问题。所开发的系统易于安装，且不干扰道路交通。它还成本低、无活动部件且所需电源小。所提出的系统是进行交通研究的理想工具，例如在需要便携性和低成本的环境影响评估研究中。
