Download or read book Measuring Recurrent and Non recurrent Traffic Congestion written by Alexander Skabardonis and published by . This book was released on 2002 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paper describes a methodology and its application to measure total, recurrent, and non-recurrent (incident related) delay on urban freeways. The methodology uses data from loop detectors and calculates the average and the probability distribution of delays. Application of the methodology to two real-life freeway corridorsone in Los Angeles and the other in the Bay Areaindicates that reliable measurement of congestion should also provide measures of uncertainty in congestion. In the two applications, incident-related delay is found to be between 13 to 30 percent of the total congestion delay during peak periods. The methodology also quantifies the congestion impacts on travel time and travel time variability.

Download or read book Measuring Non recurrent Traffic Congestion written by and published by . This book was released on 2003 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of Recurring Versus Non recurring Congestion written by Mark E. Hallenbeck and published by . This book was released on 2003 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents the technical results of a WSDOT-sponsored research effort to determine the nature and cause of congestion on Seattle-area freeways based on an analysis of available databases of traffic incidents and freeway performance. The focus of this effort was to develop a methodology for estimating freeway congestion as a function of its estimated cause (principally, its recurring or nonrecurring nature) by using readily available data, as well as to develop, implement, and use a prototype tool set that would apply that methodology. The resulting methodology and tool set produce estimates of congestion (delay) associated with recurring and non-recurring conditions as a function of various user-specified parameters and assumptions. The method is able to analyze Seattle area corridors using data from existing databases. The process makes extensive use of the TRAC-FLOW analysis process, as well as supplementary prototype tools.

Download or read book Investigating the Impact of Recurrent and Non recurrent Congestion on Highway Operations written by Marcello G. Ferri and published by . This book was released on 2014 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traffic congestion is one of the most concerning issues in the transportation system. Recurrent congestion and non-recurrent congestion are explored in this research. This research will investigate one of the most concerning issues with the transportation system, congestion, using an overall delay analysis study. A developed fused database program was used to access and analyze the complete database data. Two online databases were used for obtaining traffic, incident and weather data. Eleven different scenarios such as peak-hours, rain scenario, incidents scenario, and work zone scenario were developed for the analysis. An overall delay study was performed on all scenarios to find the impact recurring and non-recurring congestion on the highway. The results of this research were interesting for future adjustment and improvements on the two segments of highways selected.

Download or read book The Use of Weather Data to Predict Non recurring Traffic Congestion written by Daniel J. Dailey and published by . This book was released on 2006 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Identification and Evaluation of the Cost Effectiveness of Highway Design Features to Reduce Nonrecurrent Congestion written by Ingrid B. Potts, Douglas W. Harwood, Jessica M. Hutton, Chris A. Fees, Karin M. Bauer, Lindsay M. Lucas, Christopher S. Kinzel and Robert J. Frazier and published by Transportation Research Board. This book was released on with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, focuses on geometric design treatments that can be used to reduce delays due to nonrecurrent congestion.

Download or read book Measurement of Recurring and Non recurring Congestion written by and published by . This book was released on 2005 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spatio temporal Clustering for Non recurrent Traffic Congestion Detection on Urban Road Networks written by B. Anbaroglu and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Developing a Methodology for Quantifying Non recurring Freeway Congestion Delay written by Amy Epps and published by . This book was released on 1993 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development and Testing of a Freeway Recurring Congestion Measure written by Mousa F. Abbasi and published by . This book was released on 1998 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Managing Urban Traffic Congestion written by European Conference of Ministers of Transport and published by OECD Publishing. This book was released on 2007-05-31 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers policy-oriented, research-based recommendations for effectively managing traffic and cutting excess congestion in large urban areas.

Download or read book Finding and Analyzing True Effect of Non recurrent Congestion on Mobility and Safety written by Pravin Pratap Varaiya and published by . This book was released on 2007 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Road Traffic Congestion A Concise Guide written by John C. Falcocchio and published by Springer. This book was released on 2015-03-13 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book on road traffic congestion in cities and suburbs describes congestion problems and shows how they can be relieved. The first part (Chapters 1 - 3) shows how congestion reflects transportation technologies and settlement patterns. The second part (Chapters 4 - 13) describes the causes, characteristics, and consequences of congestion. The third part (Chapters 14 - 23) presents various relief strategies - including supply adaptation and demand mitigation - for nonrecurring and recurring congestion. The last part (Chapter 24) gives general guidelines for congestion relief and provides a general outlook for the future. The book will be useful for a wide audience - including students, practitioners and researchers in a variety of professional endeavors: traffic engineers, transportation planners, public transport specialists, city planners, public administrators, and private enterprises that depend on transportation for their activities.

Download or read book Intelligent Systems and Applications written by Kohei Arai and published by Springer Nature. This book was released on 2022-09-01 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a remarkable collection of chapters covering a wide domain of topics related to artificial intelligence and its applications to the real world. The conference attracted a total of 494 submissions from many academic pioneering researchers, scientists, industrial engineers, and students from all around the world. These submissions underwent a double-blind peer-reviewed process. Of the total submissions, 176 submissions have been selected to be included in these proceedings. It is difficult to imagine how artificial intelligence has become an inseparable part of our life. From mobile phones, smart watches, washing machines to smart homes, smart cars, and smart industries, artificial intelligence has helped to revolutionize the whole globe. As we witness exponential growth of computational intelligence in several directions and use of intelligent systems in everyday applications, this book is an ideal resource for reporting latest innovations and future of AI. Distinguished researchers have made valuable studies to understand the various bottlenecks existing in different arenas and how they can be overcome with the use of intelligent systems. This book also provides new directions and dimensions of future research work. We hope that readers find the volume interesting and valuable.

Download or read book Urban Redevelopment and Traffic Congestion Management Strategies written by Yanli Wang and published by Springer Nature. This book was released on 2022-05-31 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the relationship between urban land redevelopment and traffic systems and discusses the related research. Consisting of three main parts, the first analyzes the interaction between land redevelopment and traffic congestion as well as the mechanisms and causes of traffic congestion. The second part presents strategies for the prevention and control of traffic congestion under urban land redevelopment, proposing a two-stage evaluation system of traffic congestion pre-inspection and traffic impact analysis in the planning and implementation stages of land redevelopment. Lastly, the third section includes an application case analysis of the proposed traffic congestion management strategy.

Download or read book Traffic Throughput and Safety Enhancement for Vehicular Traffic Networks written by Seokheon Cho and published by . This book was released on 2014 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: For decades, one of the most significant challenges in vehicular traffic networks has been how to mitigate traffic congestion characterized by increased vehicle queueing and slower traffic speeds. Whereas traffic congestion is a complicated and subjective matter, congestion delay consists of recurrent delay and non-recurrent delay. Recurring congestion is attributed to high excess demand that constitutes about half of congestion delay, and most of the rest is non-recurring congestion mainly occurring due to incidents. In order to reduce congestion more effectively in vehicular traffic networks, it is necessary to focus on how to control high utility demand for using traffic systems and how to guarantee safety against incidents by using various strategies, instead of inefficiently widening roads. Therefore, this dissertation provides diverse approaches to improve system throughput as well as to enhance collision safety for vehicular traffic networks through understanding of vehicular traffic flow, ramp-metering control, traffic safety metric, and inter-vehicle velocity control. In Chapter 2, we provide a macroscopic traffic flow model called a time-gap-based traffic model, which is a good and simple representative model for vehicular traffic flow. The proposed time-gap-based traffic model is well validated with empirical traffic data using least squares matching and is consistent with previous research outcomes about propagation velocity. Moreover, two analysis techniques to estimate the time gap from traffic measurement data are suggested. Chapter 3 presents two optimal coordinated ramp-metering algorithms based on the time-gap-based traffic model defined in Chapter 2. The purpose of the two optimization problems is to attain the maximum average system capacity for vehicular traffic networks. In addition, both of them are coordinated ramp-metering strategies that make use of the measurement data along a highway corridor to control all metered ramps simultaneously. One is a steady-state optimization problem used under supposition when the traffic system reaches a steady-state, whereas another optimal control is a time-variant optimization problem exploited when the traffic flow changes continuously with respect to time. The time-variant optimization problem considers an on-ramp queue management strategy. We propose a traffic safety metric called a safety marginal value (SMV) to be applied to continuous-space and discrete-time vehicular traffic networks in Chapter 4. The SMV represents the safety level of collision risk at every time step and is bounded by two non-negative integers. However, the computational complexity in determining the SMV grows dramatically, particularly when the number of vehicles traveling on a roadway increases. Hence, a finite space horizon for the SMV is also developed in order to prune the computational complexity of our proposed traffic safety indicator. A safety analysis of a car-following model is conducted with the SMV and with a microscopic traffic simulation. A car-following model called a target time-gap-based velocity update model is proposed in Chapter 5. Our proposed microscopic traffic flow model is used for inter-vehicle velocity control, which every vehicle exploits in order to refresh the velocity and position for the next time step. The microscopic traffic simulation results are matched well with empirical traffic data. Thus, the target time-gap-based velocity update model is considered a representative car-following model that can accurately mimic typical driving behavior. The effective domains of the target time gap and the update time interval, which guarantee both collision-free movement of all vehicles and system capacity enhancement compared to the traffic data measured in the field, are examined.

Download or read book International Encyclopedia of Transportation written by and published by Elsevier. This book was released on 2021-05-13 with total page 4418 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an increasingly globalised world, despite reductions in costs and time, transportation has become even more important as a facilitator of economic and human interaction; this is reflected in technical advances in transportation systems, increasing interest in how transportation interacts with society and the need to provide novel approaches to understanding its impacts. This has become particularly acute with the impact that Covid-19 has had on transportation across the world, at local, national and international levels. Encyclopedia of Transportation, Seven Volume Set - containing almost 600 articles - brings a cross-cutting and integrated approach to all aspects of transportation from a variety of interdisciplinary fields including engineering, operations research, economics, geography and sociology in order to understand the changes taking place. Emphasising the interaction between these different aspects of research, it offers new solutions to modern-day problems related to transportation. Each of its nine sections is based around familiar themes, but brings together the views of experts from different disciplinary perspectives. Each section is edited by a subject expert who has commissioned articles from a range of authors representing different disciplines, different parts of the world and different social perspectives. The nine sections are structured around the following themes: Transport Modes; Freight Transport and Logistics; Transport Safety and Security; Transport Economics; Traffic Management; Transport Modelling and Data Management; Transport Policy and Planning; Transport Psychology; Sustainability and Health Issues in Transportation. Some articles provide a technical introduction to a topic whilst others provide a bridge between topics or a more future-oriented view of new research areas or challenges. The end result is a reference work that offers researchers and practitioners new approaches, new ways of thinking and novel solutions to problems. All-encompassing and expertly authored, this outstanding reference work will be essential reading for all students and researchers interested in transportation and its global impact in what is a very uncertain world. Provides a forward looking and integrated approach to transportation Updated with future technological impacts, such as self-driving vehicles, cyber-physical systems and big data analytics Includes comprehensive coverage Presents a worldwide approach, including sets of comparative studies and applications