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Author : Boris S. Kerner
Publisher : Springer
Page : 688 pages
File Size : 41,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783540409861
The core of ths book presents a theory developed by the author to combine the recent insight into empirical data with mathematical models in freeway traffic research based on dynamical non-linear processes.
Author : Boris S. Kerner
Publisher : Springer Nature
Page : 248 pages
File Size : 45,5 Mb
Release : 2021-09-01
Category : Technology & Engineering
ISBN : 9783030796020
This book addresses the reader interested in vehicular traffic phenomena, who have not learned about them before. It presents traffic phenomena like traffic breakdown and the emergence of moving traffic jams by showcasing empirical traffic data measured in real-world traffic. The author explains how these empirical traffic studies have led to the three-phase traffic theory and why this new theory is in conflict with standard traffic theories developed before. Moreover, he presents the reason for the failure of applications of standard traffic theories in real-world traffic and discusses why understanding real traffic has caused a paradigm shift in traffic and transportation science. The book examines why understanding real traffic breakdown is the basis for an explanation for the autonomous driving effects on traffic flow. It shows that understanding real traffic is possible from real-world traffic data without the need of mathematical traffic models. This makes the book intuitive for non-specialists, who can qualitatively understand all the basic features of traffic dynamics. In turn, experienced traffic researchers can grasp concepts and ideas made here easily accessible by the author, one of the leading pioneers in the field of vehicular traffic.
Author : Martin Treiber,Arne Kesting
Publisher : Springer Science & Business Media
Page : 505 pages
File Size : 51,6 Mb
Release : 2012-10-11
Category : Science
ISBN : 9783642324598
This textbook provides a comprehensive and instructive coverage of vehicular traffic flow dynamics and modeling. It makes this fascinating interdisciplinary topic, which to date was only documented in parts by specialized monographs, accessible to a broad readership. Numerous figures and problems with solutions help the reader to quickly understand and practice the presented concepts. This book is targeted at students of physics and traffic engineering and, more generally, also at students and professionals in computer science, mathematics, and interdisciplinary topics. It also offers material for project work in programming and simulation at college and university level. The main part, after presenting different categories of traffic data, is devoted to a mathematical description of the dynamics of traffic flow, covering macroscopic models which describe traffic in terms of density, as well as microscopic many-particle models in which each particle corresponds to a vehicle and its driver. Focus chapters on traffic instabilities and model calibration/validation present these topics in a novel and systematic way. Finally, the theoretical framework is shown at work in selected applications such as traffic-state and travel-time estimation, intelligent transportation systems, traffic operations management, and a detailed physics-based model for fuel consumption and emissions.
Author : Boris S. Kerner
Publisher : Springer Science & Business Media
Page : 271 pages
File Size : 47,8 Mb
Release : 2009-09-16
Category : Technology & Engineering
ISBN : 9783642026058
The understanding of empirical traf?c congestion occurring on unsignalized mul- lane highways and freeways is a key for effective traf?c management, control, or- nization, and other applications of transportation engineering. However, the traf?c ?ow theories and models that dominate up to now in transportation research journals and teaching programs of most universities cannot explain either traf?c breakdown or most features of the resulting congested patterns. These theories are also the - sis of most dynamic traf?c assignment models and freeway traf?c control methods, which therefore are not consistent with features of real traf?c. For this reason, the author introduced an alternative traf?c ?ow theory called three-phase traf?c theory, which can predict and explain the empirical spatiot- poral features of traf?c breakdown and the resulting traf?c congestion. A previous book “The Physics of Traf?c” (Springer, Berlin, 2004) presented a discussion of the empirical spatiotemporal features of congested traf?c patterns and of three-phase traf?c theory as well as their engineering applications. Rather than a comprehensive analysis of empirical and theoretical results in the ?eld, the present book includes no more empirical and theoretical results than are necessary for the understanding of vehicular traf?c on unsignalized multi-lane roads. The main objectives of the book are to present an “elementary” traf?c ?ow theory and control methods as well as to show links between three-phase traf?c t- ory and earlier traf?c ?ow theories. The need for such a book follows from many commentsofcolleaguesmadeafterpublicationofthebook“ThePhysicsofTraf?c”.
Author : Andreas Schadschneider,Thorsten Pöschel,Reinhart Kühne,Michael Schreckenberg,Dietrich E. Wolf
Publisher : Springer Science & Business Media
Page : 719 pages
File Size : 41,6 Mb
Release : 2007-04-20
Category : Mathematics
ISBN : 9783540476412
This book again continues the biannual series of (now six) conference proceedings, which has become a classical reference in traffic and granular research alike. It addresses new developments at the borderline between physics, engineering and computational science. Complex systems, where many simple agents, be it vehicles or particles, give rise to surprising and fascinating phenomena.
Author : Serge P. Hoogendoorn,Stefan Luding,Piet H.L. Bovy,Michael Schreckenberg,Dietrich E. Wolf
Publisher : Springer Science & Business Media
Page : 593 pages
File Size : 51,7 Mb
Release : 2007-08-15
Category : Mathematics
ISBN : 9783540280910
These proceedings are the fifth in the series Traffic and Granular Flow, and we hope they will be as useful a reference as their predecessors. Both the realistic modelling of granular media and traffic flow present important challenges at the borderline between physics and engineering, and enormous progress has been made since 1995, when this series started. Still the research on these topics is thriving, so that this book again contains many new results. Some highlights addressed at this conference were the influence of long range electric and magnetic forces and ambient fluids on granular media, new precise traffic measurements, and experiments on the complex decision making of drivers. No doubt the “hot topics” addressed in granular matter research have diverged from those in traffic since the days when the obvious analogies between traffic jams on highways and dissipative clustering in granular flow intrigued both c- munities alike. However, now just this diversity became a stimulating feature of the conference. Many of us feel that our joint interest in complex systems, where many simple agents, be it vehicles or particles, give rise to surprising and fascin- ing phenomena, is ample justification for bringing these communities together: Traffic and Granular Flow has fostered cooperation and friendship across the scientific disciplines.
Author : D. Helbing,H.J. Herrmann,M. Schreckenberg,D.E. Wolf
Publisher : Springer Science & Business Media
Page : 532 pages
File Size : 53,7 Mb
Release : 2012-12-06
Category : Mathematics
ISBN : 9783642597510
"Are there common phenomena and laws in the dynamic behavior of granular materials, traffic, and socio-economic systems?" The answers given at the international workshop "Traffic and Granular Flow '99" are presented in this volume. From a physical standpoint, all these systems can be treated as (self)-driven many-particle systems with strong fluctuations, showing multistability, phase transitions, non-linear waves, etc. The great interest in these systems is due to several unexpected new discoveries and their practical relevance for solving some fundamental problems of today's societies. This includes intelligent measures for traffic flow optimization and methods from "econophysics" for stabilizing (stock) markets.
Author : Cécile Appert-Rolland,François Chevoir,Philippe Gondret,Sylvain Lassarre,Jean-Patrick Lebacque,Michael Schreckenberg
Publisher : Springer Science & Business Media
Page : 758 pages
File Size : 54,7 Mb
Release : 2009-05-19
Category : Mathematics
ISBN : 9783540770749
Covers several research fields dealing with transport. This work covers three main topics including road traffic, granular matter, and biological transport. It considers different points of views including modelling, simulations, experiments, and phenomenological observations.
Author : Minoru Fukui,Yuki Sugiyama,Michael Schreckenberg,Dietrich E. Wolf
Publisher : Springer Science & Business Media
Page : 579 pages
File Size : 49,8 Mb
Release : 2013-03-09
Category : Mathematics
ISBN : 9783662105832
During the last decade physicists, engineers and computer scientists have joined in an enormously fruitful dialogue about traffic and granular flow. Cars and sand grains have in common, that they interact irreversibly, which is the reason for similar jamming phenomena. The main difference is that car drivers choose their destination and route individually, while grains follow external driving forces. This book gives an overview about the progress in modelling, computer simulation, experiments and field observations, which was reached within the last two years. The contributions are based on the International Workshop Traffic and Granular Flow '01, which took place in Nagoya, 15 - 17 October 2001. Topics include a critical classification of models for highway traffic, new technological applications, friction and arching phenomena in pedestrian traffic, scale free networks and internet traffic, instabilities and fluctuations in avalanches and granular pipe flow.
Author : Robert W. Rivers
Publisher : Charles C Thomas Publisher
Page : 141 pages
File Size : 42,9 Mb
Release : 2004
Category : Health & Fitness
ISBN : 9780398074821
The purpose of this book is to bring to the student an understanding of the basic physics involved not only in traffic crash investigation and reconstruction but also in crimes or other incidents where the movement of objects or persons is involved. The range of topics included are those considered to be fundamental and which best serve the purposes of illustrating the methods and procedures vital as an introduction to physics. Essentials of the subject as related to vehicle motion are stressed. The mathematics used is kept simple and in straightforward, easy-to-understand language. Comments and examples and a very comprehensive list of terms and definitions, supported by many illustrations and diagrams, are provided to give the reader a unified view of basic physics. All materials are prepared in both the English (U.S.) and metric (S.I.) systems. The text is intended to serve a need for investigators who possess a good knowledge and understanding of elementary algebra and trigonometry, and who have successfully completed at least an at-scene traffic crash investigation course and wish to further their knowledge towards competency in advanced traffic crash investigation and reconstruction.
Author : Ihor Lubashevsky
Publisher : Springer
Page : 380 pages
File Size : 54,9 Mb
Release : 2017-02-12
Category : Science
ISBN : 9783319517063
This book tackles the challenging question which mathematical formalisms and possibly new physical notions should be developed for quantitatively describing human cognition and behavior, in addition to the ones already developed in the physical and cognitive sciences. Indeed, physics is widely used in modeling social systems, where, in particular, new branches of science such as sociophysics and econophysics have arisen. However, many if not most characteristic features of humans like willingness, emotions, memory, future prediction, and moral norms, to name but a few, are not yet properly reflected in the paradigms of physical thought and theory. The choice of a relevant formalism for modeling mental phenomena requires the comprehension of the general philosophical questions related to the mind-body problem. Plausible answers to these questions are investigated and reviewed, notions and concepts to be used or to be taken into account are developed and some challenging questions are posed as open problems. This text addresses theoretical physicists and neuroscientists modeling any systems and processes where human factors play a crucial role, philosophers interested in applying philosophical concepts to the construction of mathematical models, and the mathematically oriented psychologists and sociologists, whose research is fundamentally related to modeling mental processes.
Author : James Kakalios
Publisher : Crown
Page : 258 pages
File Size : 46,8 Mb
Release : 2018-05-15
Category : Science
ISBN : 9780770437756
Physics professor, bestselling author, and dynamic storyteller James Kakalios reveals the mind-bending science behind the seemingly basic things that keep our daily lives running, from our smart phones and digital “clouds” to x-ray machines and hybrid vehicles. Most of us are clueless when it comes to the physics that makes our modern world so convenient. What’s the simple science behind motion sensors, touch screens, and toasters? How do we glide through tolls using an E-Z Pass, or find our way to new places using GPS? In The Physics of Everyday Things, James Kakalios takes us on an amazing journey into the subatomic marvels that underlie so much of what we use and take for granted. Breaking down the world of things into a single day, Kakalios engages our curiosity about how our refrigerators keep food cool, how a plane manages to remain airborne, and how our wrist fitness monitors keep track of our steps. Each explanation is coupled with a story revealing the interplay of the astonishing invisible forces that surround us. Through this “narrative physics,” The Physics of Everyday Things demonstrates that—far from the abstractions conjured by terms like the Higgs Boson, black holes, and gravity waves—sophisticated science is also quite practical. With his signature clarity and inventiveness, Kakalios ignites our imaginations and enthralls us with the principles that make up our lives.
Author : Amit Agrawal,Geetha R. Menon
Publisher : Nova Science Publishers
Page : 0 pages
File Size : 47,9 Mb
Release : 2017
Category : Crash injuries
ISBN : 1536124893
Road space is shared by multiple vehicles (i.e. cars, taxis, buses, trucks, motorcycles, and mopeds), pedestrians, animals and many other categories of travellers. Easy availability of motor vehicles and advancements in their technology has made road travel easy; on the other hand, this has also resulted in a significant increase in the number of motor vehicle related injuries. Road traffic related injuries remain an important public health problem globally. It has been estimated that approximately 1.25 million people succumb to road traffic injuries annually worldwide, and between 20 and 50 million people sustain non-fatal injuries. It is a cause of great concern that 59% of the severely injured population is young adults aged between the age of 15 and 44 years. At present, globally road traffic injuries are ranked as the eighth leading cause of mortality, and if the current trends continues, it is expected to be the seventh leading cause of mortality at the global level by 2030. Road traffic safety is one of the most significant concerns of the United Nations and a 5-tiered approach has been proposed to combat traffic accidents and fatalities. This includes improvements in health care services focusing on injury care, road safety management, road network safety, vehicular safety, and implementation of road safety legislation. Changes in practices like speed control, use of seatbelts and helmets, respecting traffic signals and signs, avoiding drunken driving (or use of drugs), following traffic rules (lane driving) and avoiding mobile phones while driving are some of the behavioural changes that can bring about a significant reduction in the number of road traffic related injuries. The present book consists of fifteen chapters related to various aspects concerning road traffic and safety, including epidemiology of road traffic injuries, occupant protection and safety devices, risk factors, a manual of safety measures, road safety in hilly terrain and conflict zones, prevention of head injuries, the role of alcohol and bicycle related injuries. The authors hope that the book shall help the readers to get an overview of various aspects related to global road traffic and safety.
Author : Adelinde M. Uhrmacher,Danny Weyns
Publisher : CRC Press
Page : 632 pages
File Size : 55,8 Mb
Release : 2018-10-08
Category : Computers
ISBN : 9781351834674
Methodological Guidelines for Modeling and Developing MAS-Based Simulations The intersection of agents, modeling, simulation, and application domains has been the subject of active research for over two decades. Although agents and simulation have been used effectively in a variety of application domains, much of the supporting research remains scattered in the literature, too often leaving scientists to develop multi-agent system (MAS) models and simulations from scratch. Multi-Agent Systems: Simulation and Applications provides an overdue review of the wide ranging facets of MAS simulation, including methodological and application-oriented guidelines. This comprehensive resource reviews two decades of research in the intersection of MAS, simulation, and different application domains. It provides scientists and developers with disciplined engineering approaches to modeling and developing MAS-based simulations. After providing an overview of the field’s history and its basic principles, as well as cataloging the various simulation engines for MAS, the book devotes three sections to current and emerging approaches and applications. Simulation for MAS — explains simulation support for agent decision making, the use of simulation for the design of self-organizing systems, the role of software architecture in simulating MAS, and the use of simulation for studying learning and stigmergic interaction. MAS for Simulation — discusses an agent-based framework for symbiotic simulation, the use of country databases and expert systems for agent-based modeling of social systems, crowd-behavior modeling, agent-based modeling and simulation of adult stem cells, and agents for traffic simulation. Tools — presents a number of representative platforms and tools for MAS and simulation, including Jason, James II, SeSAm, and RoboCup Rescue. Complete with over 200 figures and formulas, this reference book provides the necessary overview of experiences with MAS simulation and the tools needed to exploit simulation in MAS for future research in a vast array of applications including home security, computational systems biology, and traffic management.
Author : Minoru Fukui
Publisher : Springer Science & Business Media
Page : 608 pages
File Size : 41,8 Mb
Release : 2003-09-03
Category : Business & Economics
ISBN : 3540402551
Topics include a critical classification of models for highway traffic, new technological applications, friction and arching phenomena in pedestrian traffic, scale free networks and internet traffic, instabilities."--Jacket.
