Examining Dynamic Variable Speed Limit Strategies For The Reduction Of Real Time Crash Risk On Freeways
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Examining Dynamic Variable Speed Limit Strategies For The Reduction Of Real Time Crash Risk On Freeways
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Author : Ryan J. Cunningham
language : en
Publisher:
Release Date : 2007
Examining Dynamic Variable Speed Limit Strategies For The Reduction Of Real Time Crash Risk On Freeways written by Ryan J. Cunningham and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Intelligent transportation systems categories.
In the free-flow condition (60% loading), the best treatments involved the more liberal threshold for defining homogeneous speed zones (5 mph) and the more liberal implementation distance (entire speed zone), as well as a minimum time period of 10 minutes. This treatment was actually shown to significantly reduce the network travel time by 0.8%. It was also shown that this particular implementation strategy (lowering upstream, raising downstream) is wholly resistant to the effects of crash migration in the 60% loading scenario. In the condition approaching congestion (80% loading), the best treatment again involved the more liberal threshold for homogeneous speed zones (5 mph), yet the more conservative implementation distance (half the speed zone), along with a minimum time period of 5 minutes. This particular treatment arose as the best due to its unique capability to resist the increasing effects of crash migration in the 80% loading scenario. It was shown that the treatments implementing over half the speed zone were more robust against crash migration than other treatments. The best treatment exemplified the greatest benefit in reduced sections and the greatest resistance to crash migration in other sections. In the 80% loading scenario, the best treatment increased the network travel time by less than 0.4%, which is deemed acceptable. No treatment was found to successfully reduce the rear-end and lane-change crash risks in the congested traffic condition (90% loading). This is attributed to the fact that, in the congested state, the speed of vehicles is subject to the surrounding traffic conditions and not to the posted speed limit. Therefore, changing the posted speed limit does not affect the speed of vehicles in a desirable manner. These conclusions agree with Dilmore (2005).
Civil Engineering And Urban Planning Proceedings Of The 5th International Conference On Civil Engineering And Urban Planning Ceup2016
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Author : Ahmed Mebarki
language : en
Publisher: World Scientific
Release Date : 2017-06-02
Civil Engineering And Urban Planning Proceedings Of The 5th International Conference On Civil Engineering And Urban Planning Ceup2016 written by Ahmed Mebarki and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-02 with Technology & Engineering categories.
The 5th International Conference on Civil Engineering and Urban Planning (CEUP2016) was held in Xi'an, China on August 23 - 26, 2016. CEUP2016 gathered outstanding scientists and researchers worldwide to exchange and discuss new findings in civil engineering and urban planning associated with transportation and environmental topics. The conference program committee is also greatly honored to have four renowned experts for taking time off to present their keynotes to the conference.The conference had received a total of 410 submissions, which after peer review by the Technical Program Committee, only 108 were selected to be included in this conference proceedings, which covers Architecture and Urban Planning; Civil Engineering and Transportation Engineering.
Advances In Human Aspects Of Transportation Part I
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Author : Neville Stanton
language : en
Publisher: AHFE International (USA)
Release Date : 2021-07-19
Advances In Human Aspects Of Transportation Part I written by Neville Stanton and has been published by AHFE International (USA) this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-19 with Technology & Engineering categories.
Human Factors and Ergonomics have made a considerable contribution to the research, design, development, operation and analysis of transportation systems which includes road and rail vehicles and their complementary infrastructure, aviation and maritime transportation. This book presents recent advances in the Human Factors aspects of Transportation. These advances include accident analysis, automation of vehicles, comfort, distraction of drivers (understanding of distraction and how to avoid it), environmental concerns, in-vehicle systems design, intelligent transport systems, methodological developments, new systems and technology, observational and case studies, safety, situation awareness, skill development and training, warnings and workload. This book brings together the most recent human factors work in the transportation domain, including empirical research, human performance and other types of modeling, analysis, and development. The issues facing engineers, scientists, and other practitioners of human factors in transportation research are becoming more challenging and more critical. The common theme across these sections is that they deal with the intersection of the human and the system. Moreover, many of the chapter topics cross section boundaries, for instance by focusing on function allocation in NextGen or on the safety benefits of a tower controller tool. This is in keeping with the systemic nature of the problems facing human factors experts in rail and road, aviation and maritime research– it is becoming increasingly important to view problems not as isolated issues that can be extracted from the system environment, but as embedded issues that can only be understood as a part of an overall system.
Expanding Navigation Application And Empowering The Future Of Humanity
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Author : Shijun Chen
language : en
Publisher: CRC Press
Release Date : 2025-07-21
Expanding Navigation Application And Empowering The Future Of Humanity written by Shijun Chen and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-07-21 with Technology & Engineering categories.
The 2024 IAIN World Congress, held from October 28th – 30th, at the Beijing International Convention Center, brought together over 350 participants and 31 delegates from all over the world to discuss cutting-edge advancements in navigation and maritime technology. Organized by the International Association of Institutes of Navigation (IAIN) and hosted by the China Institute of Navigation (CIN), the Congress delved into the latest technological trends, research, and industry developments in satellite navigation, autonomous shipping, maritime safety, and the integration of 5G, IoT, AI, and big data. This book provides an overview of key discussions, research findings, and milestones in the field, showcasing the collaborative efforts shaping the future of global maritime safety. This book is intended for professionals in navigation and maritime technology, academic researchers, maritime safety authorities, technology developers, industry enterprises, students, and enthusiasts interested in navigation systems, autonomous shipping, and maritime safety. The Open Access version of this book, available at www.taylorfrancis.com, has been made available under a Creative Commons [Attribution-Non Commercial-No Derivatives (CC-BY-NC-ND)] 4.0 license.
Information Technology For Education Science And Technics
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Author : Emil Faure
language : en
Publisher: Springer Nature
Release Date : 2024-10-02
Information Technology For Education Science And Technics written by Emil Faure and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-10-02 with Technology & Engineering categories.
This book deals with issues related to multi-faceted applications of information and communication technology in research, engineering, robotics, automation of technological processes, complex systems, and computer networks, as well as mathematical and computer modelling of physical, chemical, and economic processes. In this book, the authors explore various aspects of information and communication technology and systems and their integration into science, engineering, automation, and economics. The authors develop new models, methods, and approaches for monitoring and controlling systems, communication networks, artificial intelligence applications, and digital resilience. The book is of interest to experts in the field of information and communication technology and systems, scientists, and Ph.D. students.
International Encyclopedia Of Transportation
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Author :
language : en
Publisher: Elsevier
Release Date : 2021-05-13
International Encyclopedia Of Transportation written by and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-13 with Law categories.
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
Government Reports Announcements Index
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Author :
language : en
Publisher:
Release Date : 1992
Government Reports Announcements Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Government publications categories.
Bulletin Of The Atomic Scientists
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Author :
language : en
Publisher:
Release Date : 1970-06
Bulletin Of The Atomic Scientists written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970-06 with categories.
The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Annual Index Abstracts Of Sae Technical Papers
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Author :
language : en
Publisher:
Release Date : 1999
Annual Index Abstracts Of Sae Technical Papers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Automobiles categories.
Popular Science
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Author :
language : en
Publisher:
Release Date : 2004-09
Popular Science written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-09 with categories.
Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.