Department of Civil and Building Engineering, University of Castilla-La Mancha, 13071 Ciudad Real, Spain.
Department of Technologies and Information Systems, University of Castilla-La Mancha, 13071 Ciudad Real, Spain.
Sensors (Basel). 2020 Sep 29;20(19):5589. doi: 10.3390/s20195589.
In recent years, different techniques to address the problem of observability in traffic networks have been proposed in multiple research projects, being the technique based on the installation of automatic vehicle identification sensors (AVI), one of the most successful in terms of theoretical results, but complex in terms of its practical application to real studies. Indeed, a very limited number of studies consider the possibility of installing a series of non-definitive plate scanning sensors in the elements of a network, which allow technicians to obtain a better conclusions when they deal with traffic network analysis such as urbans mobility plans that involve the estimation of traffic flows for different scenarios. With these antecedents, the contributions of this paper are (1) an architecture to deploy low-cost sensors network able to be temporarily installed on the city streets as an alternative of rubber hoses commonly used in the elaboration of urban mobility plans; (2) a design of the low-cost, low energy sensor itself, and (3) a sensor location model able to establish the best set of links of a network given both the study objectives and of the sensor needs of installation. A case of study with the installation of as set of proposed devices is presented, to demonstrate its viability.
近年来，在多个研究项目中提出了不同的技术来解决交通网络中的可观测性问题，其中基于安装自动车辆识别传感器（AVI）的技术在理论成果方面最为成功，但在实际应用于实际研究方面却很复杂。实际上，很少有研究考虑在网络元素中安装一系列非确定性的车牌扫描传感器的可能性，这使得技术人员在处理交通网络分析时能够获得更好的结论，例如涉及不同场景下交通流量估计的城市流动计划。有了这些背景，本文的贡献在于（1）提出了一种架构，可以部署低成本传感器网络，这些网络可以临时安装在城市街道上，作为城市流动计划制定中常用的橡胶管的替代品；（2）设计了低成本、低能耗的传感器本身，以及（3）一个传感器位置模型，该模型能够根据研究目标和传感器安装需求，为网络确定最佳的链路集。通过安装一组建议的设备进行了案例研究，以证明其可行性。
