Download or read book The Improved Effectiveness of Traffic Signal Systems written by G. J. Thomas and published by . This book was released on 1975 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Improved Effectiveness of Traffic Signal Systems written by D. S. Terry and published by . This book was released on 1973 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Improved Effectiveness of Traffic Signal Systems Effects of Changes in Signal Operation on Traffic Flow written by D. S. Terry and published by . This book was released on 1973 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The improved effectiveness of traffic signal systems written by and published by . This book was released on 1975 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The improved effectiveness of traffic signal systems written by and published by . This book was released on 1975 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Improved Effectiveness of Traffic Signal Systems written by D. S. Terry and published by . This book was released on 1975 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improved Effectiveness of Traffic Signal Systems written by D. S. Terry and published by . This book was released on 1974 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving Traffic Signal Operations written by and published by . This book was released on 1995 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Traffic Control System Improvements written by and published by . This book was released on 1980 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report reviews, synthesizes, and interprets the impacts and costs of urban traffic control system improvements. Four major categories of control system improvements are covered: coordination of traffic signals; optimization of traffic signal timing; advanced computer-based master control systems; and freeway traffic management systems. Project level impacts and areawide impacts are given for various types of traffic control projects and comprehensive combined programs. The current implementation status of the different types of traffic control improvements, institutional impediments, and cost effectiveness is discussed. Special treatment is given to the impacts of improved traffic control on energy consumption.
Download or read book Improved Criteria for Designing and Timing Traffic Signal Systems written by Daniel L. Gerlough and published by . This book was released on 1964 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improved Criteria for Traffic Signals at Individual Intersections written by Planning Research Corporation and published by . This book was released on 1964 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A preliminary examination of existing traffic signals was conducted on simple intersections of four lanes crossing four lanes. The research tasks performed were 1. review of prior research, 2. formulation of a preliminary model, 3. testing and refining the model, and 4. examination of controllers and control techniques. A comprehensive bibliography was assembled and studied.
Download or read book Energy and Emission Consequences of Improved Traffic Signal Systems written by Suk June Kahng and published by . This book was released on 1982 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improved Traffic Signal Efficiency in Rural Areas Through the Use of Variable Maximum Green Time written by Steven M. Click and published by . This book was released on 2007 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving the Highway System by Upgrading and Optimizing Traffic Control Devices Final Report written by Harold Lunenfeld and published by . This book was released on 1977 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving Traffic Safety and Efficiency by Adaptive Signal Control Based on Deep Reinforcement Learning written by Yaobang Gong and published by . This book was released on 2020 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: As one of the most important Active Traffic Management strategies, Adaptive Traffic Signal Control (ATSC) helps improve traffic operation of signalized arterials and urban roads by adjusting the signal timing to accommodate real-time traffic conditions. Recently, with the rapid development of artificial intelligence, many researchers have employed deep reinforcement learning (DRL) algorithms to develop ATSCs. However, most of them are not practice-ready. The reasons are two-fold: first, they are not developed based on real-world traffic dynamics and most of them require the complete information of the entire traffic system. Second, their impact on traffic safety is always a concern by researchers and practitioners but remains unclear. Aiming at making the DRL-based ATSC more implementable, existing traffic detection systems on arterials were reviewed and investigated to provide high-quality data feeds to ATSCs. Specifically, a machine-learning frameworks were developed to improve the quality of and pedestrian and bicyclist’s count data. Then, to evaluate the effectiveness of DRL-based ATSC on the real-world traffic dynamics, a decentralized network-level ATSC using multi-agent DRL was developed and evaluated in a simulated real-world network. The evaluation results confirmed that the proposed ATSC outperforms the actuated traffic signals in the field in terms of travel time reduction. To address the potential safety issue of DRL based ATSC, an ATSC algorithm optimizing simultaneously both traffic efficiency and safety was proposed based on multi-objective DRL. The developed ATSC was tested in a simulated real-world intersection and it successfully improved traffic safety without deteriorating efficiency. In conclusion, the proposed ATSCs are capable of effectively controlling real-world traffic and benefiting both traffic efficiency and safety.
Download or read book Systems Engineering Processes for Developing Traffic Signal Systems written by Robert L. Gordon and published by Transportation Research Board. This book was released on 2003 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 307: Systems Engineering Processes for Developing Traffic Signal Systems discusses the systems engineering techniques available to traffic signal systems and identifies the key processes in a number of traffic signal systems engineering areas.
Download or read book Evaluation of Innovative Coordination Methods Utilizing ITS Technology for Traffic Signals written by Steven P. Venglar and published by . This book was released on 1997 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project report summaries research and implementation of signal system communications and improved signal control. An investigation of available signal system communication technologies and media identified spread spectrum radio as an effective, inexpensive, and flexible alternative. As part of the project, a radio communications system was selected and installed at five signalized intersections along US 281 in Falfurrias, Texas. Closed loop system software was then installed to coordinate the previously isolated, actuated intersections. The end result was improved traffic control, improved traffic flow, and remote system monitoring for those responsible for signal maintenance. A second aspect of the project focused on developing real-time control functionality that would make use of the communications system. The Texas Department of Transportation's Dynamic Arterial Responsive Traffic System (DARTS) Specification provided a public domain, real-time signal coordination algorithm that suited this purpose. Simulators were developed by the Texas Transportation Institute to determine the effectiveness of DARTS installed in Falfurrias. Results show an average 18 percent reduction in travel time on US 281 and indicate the potential for DARTS to reduce arterial travel time. As an added project benefit, the simulation software developed for this project can be used to determine DARTS applicability at any given field site, and it can be used to train personnel in DARTS use and calibration.
