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Development Of A Real Time Arterial Performance Monitoring System Using Traffic Data Available From Existing Signal Systems
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Book Synopsis Development of a Real-time Arterial Performance Monitoring System Using Traffic Data Available from Existing Signal Systems by : Henry X. Liu
Download or read book Development of a Real-time Arterial Performance Monitoring System Using Traffic Data Available from Existing Signal Systems written by Henry X. Liu and published by . This book was released on 2008 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data collection and performance measurement for signalized arterial roads is an area of emerging focus in the United States. As indicated by the results of the 2005 Traffic Signal Operation Self-Assessment Survey, a majority of agencies involved in the operation and maintenance of traffic signal systems do not monitor or archive traffic system performance and thus have limited means to improve their operation. With support from the Transportation Department of Hennepin County, Minneapolis, MN, a system for high resolution traffic signal data collection and arterial performance measurement has been successfully built. The system, named SMART-SIGNAL (Systematic Monitoring of Arterial Road Traffic Signals), is able to collect and archive event-based traffic signal data simultaneously at multiple intersections. Using the event-based traffic data, SMART-SIGNAL can generate timedependent performance measures for both individual intersections and arterials including intersection queue length and arterial travel time. The SMART-SIGNAL system has been deployed at an 11-intersection corridor along France Avenue in south Minneapolis and the estimated performance measures for both intersection queue length and arterial travel times are highly consistent with the observed data.
Author :University of Minnesota. Intelligent Transportation Systems Institute Publisher : ISBN 13 : Total Pages :60 pages Book Rating :4.3/5 (555 download)
Book Synopsis Annual Report by : University of Minnesota. Intelligent Transportation Systems Institute
Download or read book Annual Report written by University of Minnesota. Intelligent Transportation Systems Institute and published by . This book was released on 2003 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Active Traffic Management for Arterials by : Richard Gerhard Dowling
Download or read book Active Traffic Management for Arterials written by Richard Gerhard Dowling and published by Transportation Research Board. This book was released on 2013 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Active traffic management (ATM) includes a suite of traffic management and control strategies that improve operational efficiency. These strategies are used to manage traffic flow to enhance capacity and safety. This synthesis documents the state of the practice associated with designing, implementing, and operating ATM on arterial roadways."--Preface.
Book Synopsis ITS Sensors and Architectures for Traffic Management and Connected Vehicles by : Lawrence A. Klein
Download or read book ITS Sensors and Architectures for Traffic Management and Connected Vehicles written by Lawrence A. Klein and published by CRC Press. This book was released on 2017-08-07 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: An intelligent transportation system (ITS) offers considerable opportunities for increasing the safety, efficiency, and predictability of traffic flow and reducing vehicle emissions. Sensors (or detectors) enable the effective gathering of arterial and controlled-access highway information in support of automatic incident detection, active transportation and demand management, traffic-adaptive signal control, and ramp and freeway metering and dispatching of emergency response providers. As traffic flow sensors are integrated with big data sources such as connected and cooperative vehicles, and cell phones and other Bluetooth-enabled devices, more accurate and timely traffic flow information can be obtained. The book examines the roles of traffic management centers that serve cities, counties, and other regions, and the collocation issues that ensue when multiple agencies share the same space. It describes sensor applications and data requirements for several ITS strategies; sensor technologies; sensor installation, initialization, and field-testing procedures; and alternate sources of traffic flow data. The book addresses concerns related to the introduction of automated and connected vehicles, and the benefits that systems engineering and national ITS architectures in the US, Europe, Japan, and elsewhere bring to ITS. Sensor and data fusion benefits to traffic management are described, while the Bayesian and Dempster–Shafer approaches to data fusion are discussed in more detail. ITS Sensors and Architectures for Traffic Management and Connected Vehicles suits the needs of personnel in transportation institutes and highway agencies, and students in undergraduate or graduate transportation engineering courses.
Book Synopsis Development and Evaluation of an Arterial Adaptive Traffic Signal Control System Using Reinforcement Learning by : Yuanchang Xie
Download or read book Development and Evaluation of an Arterial Adaptive Traffic Signal Control System Using Reinforcement Learning written by Yuanchang Xie and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation develops and evaluates a new adaptive traffic signal control system for arterials. This control system is based on reinforcement learning, which is an important research area in distributed artificial intelligence and has been extensively used in many applications including real-time control. In this dissertation, a systematic comparison between the reinforcement learning control methods and existing adaptive traffic control methods is first presented from the theoretical perspective. This comparison shows both the connections between them and the benefits of using reinforcement learning. A Neural-Fuzzy Actor-Critic Reinforcement Learning (NFACRL) method is then introduced for traffic signal control. NFACRL integrates fuzzy logic and neural networks into reinforcement learning and can better handle the curse of dimensionality and generalization problems associated with ordinary reinforcement learning methods. This NFACRL method is first applied to isolated intersection control. Two different implementation schemes are considered. The first scheme uses a fixed phase sequence and variable cycle length, while the second one optimizes phase sequence in real time and is not constrained to the concept of cycle. Both schemes are further extended for arterial control, with each intersection being controlled by one NFACRL controller. Different strategies used for coordinating reinforcement learning controllers are reviewed, and a simple but robust method is adopted for coordinating traffic signals along the arterial. The proposed NFACRL control system is tested at both isolated intersection and arterial levels based on VISSIM simulation. The testing is conducted under different traffic volume scenarios using real-world traffic data collected during morning, noon, and afternoon peak periods. The performance of the NFACRL control system is compared with that of the optimized pre-timed and actuated control. Testing results based on VISSIM simulation show that the proposed NFACRL control has very promising performance. It outperforms optimized pre-timed and actuated control in most cases for both isolated intersection and arterial control. At the end of this dissertation, issues on how to further improve the NFACRL method and implement it in real world are discussed.
Book Synopsis Improving Performance of Coordinated Signal Control Systems Using Signal and Loop Data by : Meng Li (Writer on traffic signs and signals)
Download or read book Improving Performance of Coordinated Signal Control Systems Using Signal and Loop Data written by Meng Li (Writer on traffic signs and signals) and published by . This book was released on 2010 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Real-Time Arterial Traffic Signal Performance Measures by : Christopher M. Day
Download or read book Real-Time Arterial Traffic Signal Performance Measures written by Christopher M. Day and published by Purdue University Press. This book was released on 2008-04-01 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing demand for highway system capacity compels transportation agencies to extract as much capacity as possible from existing systems. Traffic signals represent a major component of highway systems. Improvement of traffic signal operation requires accurate performance measures. Despite recent improvements in computing technology, traffic signal controllers are currently not able to capture useful performance measures on a cycle-by-cycle basis. This report presents a set of performance measures that could be collected on a cycle-by-cycle basis by a traffic signal controller given the capability to log phase indications and detector actuations. The performance measures investigated here include the volume-to-capacity ratio and arrival type defined by the Highway Capacity Manual. The effectiveness of these performance measures in evaluating operation at a traffic signal is demonstrated in two comparative case studies. The first study investigates the impact of actuating a portion of the coordinated phases at a coordinated arterial intersection. The second study investigates the results of retiming a traffic signal on a coordinated arterial.
Book Synopsis Real-time Estimation of Arterial Performance Measures Using a Data-driven Microscopic Traffic Simulation Technique by : Dwayne Anthony Henclewood
Download or read book Real-time Estimation of Arterial Performance Measures Using a Data-driven Microscopic Traffic Simulation Technique written by Dwayne Anthony Henclewood and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Traffic congestion is a one hundred billion dollar problem in the US. The cost of congestion has been trending upward over the last few decades, but has experienced slight decreases in recent years partly due to the impact of congestion reduction strategies. The impact of these strategies is however largely experienced on freeways and not arterials. This discrepancy in impact is partially linked to the lack of real-time, arterial traffic information. Toward this end, this research effort seeks to address the lack of arterial traffic information. :To address this dearth of information, this effort developed a methodology to provide accurate estimates of arterial performance measures to transportation facility managers and travelers in real-time. This methodology employs transmitted point sensor data to drive an online, microscopic traffic simulation model. The feasibility of this methodology was examined through a series of experiments that were built upon the successes of the previous, while addressing the necessary limitations. The results from each experiment were encouraging. They successfully demonstrated the method's likely feasibility, and the accuracy with which field estimates of performance measures may be obtained. In addition, the method's results support the viability of a "real-world" implementation of the method. An advanced calibration process was also developed as a means of improving the method's accuracy. This process will in turn serve to inform future calibration efforts as the need for more robust and accurate traffic simulation models are needed. :The success of this method provides a template for real-time traffic simulation modeling which is capable of adequately addressing the lack of available arterial traffic information. In providing such information, it is hoped that transportation facility managers and travelers will make more informed decisions regarding more efficient management and usage of the nation's transportation network.
Book Synopsis Implementation of the National Intelligent Transportation Systems Program by : United States. Federal Highway Administration
Download or read book Implementation of the National Intelligent Transportation Systems Program written by United States. Federal Highway Administration and published by . This book was released on 1996 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of Traffic Simulation Models by :
Download or read book Application of Traffic Simulation Models written by and published by . This book was released on 1982 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Federal Highway Administration (U S ) Publisher :Government Printing Office ISBN 13 :9780160937064 Total Pages :544 pages Book Rating :4.9/5 (37 download)
Book Synopsis 2015 Status of the Nation's Highways, Bridges, and Transit Conditions and Performance Report to Congress by : Federal Highway Administration (U S )
Download or read book 2015 Status of the Nation's Highways, Bridges, and Transit Conditions and Performance Report to Congress written by Federal Highway Administration (U S ) and published by Government Printing Office. This book was released on 2017-04 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication is intended to provide decision makers with an objective appraisal of the physical conditions, operational performance, and financing mechanisms of highways, bridges, and transit systems based on both their current state and their projected future state under a set of alternative future investment scenarios.
Book Synopsis Journal of the House of Representatives of the United States by : United States. Congress. House
Download or read book Journal of the House of Representatives of the United States written by United States. Congress. House and published by . This book was released on 2014 with total page 1424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some vols. include supplemental journals of "such proceedings of the sessions, as, during the time they were depending, were ordered to be kept secret, and respecting which the injunction of secrecy was afterwards taken off by the order of the House."
Book Synopsis Freeway Corridor Management by : Conrad L. Dudek
Download or read book Freeway Corridor Management written by Conrad L. Dudek and published by Transportation Research Board. This book was released on 1992 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to state and local traffic engineers, transportation planners, transit operators, law enforcement officials, public information agencies, and others responsible for the transportation elements of freeway corridors. Information is provided on the policies and procedures for freeway corridor management, and descriptions of a number of techniques and practices are presented. Traffic growth and increasing congestion on urban freeways require a comprehensive approach toward managing the complex elements of freeway operations. This report of the Transportation Research Board provides information on freeway corridor management strategies, the components of management, examples of effective applications of the strategies, and benefits of freeway corridor management. The management techniques that are discussed include freeway surveillance and control; corridor street surveillance and control; high-occupancy vehicle facilities and incentives; police enforcement and traffic control; hazardous material and other truck traffic restrictions; alternative route planning; motorist assistance patrols; motorist information techniques; and traffic management for recurrent congestion, for incidents, for special events, and for work zones.
Book Synopsis Department of Transportation's Intelligent Transportation Systems (ITS) Projects Book by :
Download or read book Department of Transportation's Intelligent Transportation Systems (ITS) Projects Book written by and published by . This book was released on 1998 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains summaries of current U.S. intelligent transportation systems projects.
Download or read book Transportation Research Record written by and published by . This book was released on 1997 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Feedback Control Theory for Dynamic Traffic Assignment by : Pushkin Kachroo
Download or read book Feedback Control Theory for Dynamic Traffic Assignment written by Pushkin Kachroo and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Advances in Industrial Control aims to report and encourage technology transfer in control engineering. The rapid development of control technology impacts all areas of the control discipline. New theory, new controllers, actuators, sensors, new industrial processes, computer methods, new applications, new philosophies, .... , new challenges. Much of this development work resides in industrial reports, feasibility study papers and the reports of advanced collaborative projects. The series offers an opportunity for researchers to present an extended exposition of such new work in all aspects of industrial control for wider and rapid dissemination. Micro-technology and modern communications technology are revolutionising many aspects of our daily lives and so it is not surprising that it is impacting societal transportation systems whether our highways, airways, seaways or railways. The Advances in Industrial Control series reported on these developments for long haul railway systems in a monograph by Howlett and Pudney (ISBN 3-S40-19990-X, 1995). Now it is the turn of transportation in a contribution from Pushkin Kachroo and Kaan Ozbay. The authors viewpoint is that this new set of transportation problems are control problems and that control engineers should be highly active in this field. Their volume covers all the aspects of modelling, problem formulation, and applies various control methodologies to solve the control problems formulated.
Book Synopsis Status of the Nation's Highways, Bridges and Transit: Conditions and Performance by : Barry Leonard
Download or read book Status of the Nation's Highways, Bridges and Transit: Conditions and Performance written by Barry Leonard and published by DIANE Publishing. This book was released on 2010-08 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Conditions and Performance (C&P) report is intended to provide decision makers with an objective appraisal of the physical conditions, operational performances, and financing mechanisms of highways, bridges, and transit systems based both on the current state of these systems and on the projected future state of these systems under a set of alternative future investment scenarios. This report offers a comprehensive, data-driven background to support the development and evaluation of legislative, program, and budget options at all levels of government. This report consolidates conditions, performance, and financial data provided by States, local governments, and mass transit operators to provide a national-level summary. Illus.
