作者: Michael D. Fontaine , Brian L. Smith
DOI: 10.1061/(ASCE)0733-947X(2007)133:3(157)
关键词: Field (computer science) 、 Measure (data warehouse) 、 SIMPLE (military communications protocol) 、 Real-time computing 、 Intelligent transportation system 、 Location technology 、 Systems design 、 Simulation 、 Wireless 、 Function (engineering) 、 Engineering
摘要: As transportation agencies seek to better manage and operate the system, there is an increasing need for traffic condition data across roadway network. Wireless location technology (WLT)-based monitoring offers opportunity directly measure link travel times on a significantly larger portion of system than currently monitored. In WLT-based monitoring, locations wireless devices (such as cellular phones) in vehicles are A series these positions then used derive vehicle speeds links, effectively making probes stream. While this idea conceptually appealing, previous field deployments have not been able successfully implement concept. This paper describes results study that simulation examine efficacy systems under various configurations. Two case studies were investigate how WLT design network configuration impact overall effectiveness systems. Conclusions should be designed where they likely function best also included. The show while first-generation can monitor relatively simple networks, additional refinements needed before broad spectrum conditions.