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Traffic Flow Dynamics

Author: Martin Treiber
Publisher: Springer Science & Business Media
ISBN: 3642324606
Size: 60.61 MB
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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.

Modeling And Simulation Of Logistics Flows 2

Author: Jean-Michel Réveillac
Publisher: John Wiley & Sons
ISBN: 111936857X
Size: 47.71 MB
Format: PDF, Kindle
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Volume 2 begins with an introduction and 4 chapters implementing software tools on cases of practical applications and it ends with a conclusion: - The various tools used in this volume; - Operational research with a spreadsheet; - Dashboards with spreadsheets and pivot tables; - Scheduling and planning with a project manager; - The traffic simulation The conclusion shows the new features that are expected to emerge on spreadsheets as well as project managers, developments and convergences between traffic simulators and new infrastructure that are emerging on road networks. Annex 1 focuses on the installation Solver in Microsoft Excel and Annex 2 focuses on the installation of the Java Development Kit

Modeling And Simulation Of Logistics Flows 1

Author: Jean-Michel Réveillac
Publisher: John Wiley & Sons
ISBN: 1119368529
Size: 42.43 MB
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Volume 1 presents successively an introduction followed by 10 chapters and a conclusion: - A logistic approach - an overview of operations research - The basics of graph theory - calculating optimal routes - Dynamic programming - planning and scheduling with PERT and MPM; - the waves of calculations in a network; - spanning trees and touring; - linear programming - modeling of road traffic

Modeling And Simulation Of Logistics Flows 3

Author: Jean-Michel Réveillac
Publisher: John Wiley & Sons
ISBN: 1119368634
Size: 68.81 MB
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Volume 3 begins with an introduction to which are added four chapters focused on modeling and flow simulation in an environment in 2 or 3 dimensions (2D or 3D). They deal with different cases taken from situations found in the field. A conclusion comes close this third book: - The different software used in this third volume; - Computer simulation of discrete flows; - Mixed flow simulation; - Flows in 3D and the evacuation simulation; - Flows in 3D for conveying and storage The conclusion discusses the future developments of the software and their integration into society. At the end of each volume is a bibliography and a list of web links. There is also a glossary explaining some abbreviations, acronyms and some very specific terminology of logistics and operations research.

Traffic Simulation And Data

Author: Winnie Daamen
Publisher: CRC Press
ISBN: 148222870X
Size: 61.83 MB
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A single source of information for researchers and professionals, Traffic Simulation and Data: Validation Methods and Applications offers a complete overview of traffic data collection, state estimation, calibration and validation for traffic modelling and simulation. It derives from the Multitude Project—a European Cost Action project that incorporates work packages defining traffic simulation practice and research; highway and network modeling; and synthesis, dissemination, and training. This book addresses the calibration and validation of traffic models, and introduces necessary frameworks and techniques. It also includes viable methods for sensitivity analyses, and incorporates relevant tools for application. The book begins with a brief summary of various data collection techniques that can be applied to collect different data types. It then showcases various data processing and enhancement techniques for improving the quality of collected data. It also introduces the techniques according to the type of estimation, for example microscopic data enhancement, traffic state estimation, feature extraction and parameter identification techniques, and origin–destination matrix estimation. The material discusses the measures of performance, data error and goodness of fit, and optimization algorithms. It also contains the sensitivity analyses of parameters in traffic models. Describes the various tasks of calibration and validation Considers the best use of available data Presents the sensitivity analysis method Discusses typical issues of data error in transportation system data and how these errors can impact simulation results Details various methodologies for data collection, sensitivity analysis, calibration, and validation Examines benefits that result from the application of these methods Traffic Simulation and Data: Validation Methods and Applications serves as a key resource for transport engineers and planners, researchers, and graduate students in transport engineering and planning.

Mathematics Of Traffic Flow Networks

Author: Michael Herty
Publisher:
ISBN:
Size: 40.54 MB
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Traffic flow has been a continuous source of challenging mathematical problems. The following work is dedicated to recent questions in modeling, simulation and optimization of traffic flow networks. Mathematics can help to solve traffic problems in different ways. Modelling provides fundamental understanding of traffic dynamics and behaviour. Optimization yields solutions for complex situations and helps to organize traffic flow. During the last decade there has been intensive research in different fields of and related to traffic flow. One of the primary research activities focus on the development of new and more realistic models for traffic flow on a single road. Our work's primary focus is on models for networks. We provide new ideas on modelling flow in networks and solve different optimization problems analytically and numerically. The main result is the derivation of a hierarchy of models treating different situations with suitable traffic flow models. To each level of modeling we consider the optimal control problems and present techniques to address those problems. Furthermore, we derive an adjoint calculus for scalar hyperbolic equations with nonlinear boundary controls. The derived concepts fit for general network problems as well as they do for traffic flow issues. The principles of modeling and simplification can be applied to all kinds of network flows, like fluid flow in open channels or gas networks.

Transport Simulation

Author: Edward Chung
Publisher: EPFL Press
ISBN: 9781420095098
Size: 47.19 MB
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Created by an invited panel of experts, this book addresses students, engineers, and scholars as well as anyone who needs a state-of-the-art overview of transport simulation. The many exciting developments in this field are covered in depth. Pub 4/09.

Traffic And Granular Flow 99

Author: D. Helbing
Publisher: Springer Science & Business Media
ISBN: 3642597513
Size: 22.59 MB
Format: PDF
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"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.

The Physics Of Traffic

Author: Boris S. Kerner
Publisher: Springer Science & Business Media
ISBN: 9783540207160
Size: 69.63 MB
Format: PDF, ePub
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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.