Simplified Transport Models Based On Traffic Counts
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Simplified Transport Models Based On Traffic Counts
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Author : L. G. Willumsen
language : en
Publisher:
Release Date : 1981
Simplified Transport Models Based On Traffic Counts written by L. G. Willumsen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with categories.
Simplified Transport Demand Modelling
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Author : Juan de Dios Ortúzar S.
language : en
Publisher:
Release Date : 1992
Simplified Transport Demand Modelling written by Juan de Dios Ortúzar S. and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Communication and traffic categories.
Traffic Simulation And Data
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Author : Winnie Daamen
language : en
Publisher: CRC Press
Release Date : 2014-09-17
Traffic Simulation And Data written by Winnie Daamen and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-09-17 with Mathematics categories.
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.
Advanced Methods In Transportation Analysis
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Author : Lucio Bianco
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Advanced Methods In Transportation Analysis written by Lucio Bianco and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Business & Economics categories.
This volume is a compendium of papers presented during the second TRlennal Symposium on Transportation ANalysis (TRISTAN II) that took place in Capri, Italy on June 23-28, 1994. The Symposium was organized by the Progetto Finalizzato Trasporti and the Istituto di Analisi dei Sistemi ed Informatica of the Italian National Research Council jointly with the Italian Operations Research Society. The purpose of this kind of meetings is to periodically allow an exchange of views and findings by scientists in the field of transportation analysis methods and tools. Therefore, the papers presented dealt with a wide range of topics and cover the different aspects of transportation analysis. The material contained in this book gives particular emphasis to the development of mathematical modelling and algorithms. This development is due to the evolution of digital computers and the continuous increase of the computing power. In fact the need of solving large scale problems (crew scheduling, network traffic control, pollution monitoring and control,. etc ... ) involves in some case, thousands of variables and therefore sophisticated mathematical models and computational algorithms.
Emission Estimation Based On Traffic Models And Measurements
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Author : Nikolaos Tsanakas
language : en
Publisher: Linköping University Electronic Press
Release Date : 2019-04-24
Emission Estimation Based On Traffic Models And Measurements written by Nikolaos Tsanakas and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-04-24 with categories.
Traffic congestion increases travel times, but also results in higher energy usage and vehicular emissions. To evaluate the impact of traffic emissions on environment and human health, the accurate estimation of their rates and location is required. Traffic emission models can be used for estimating emissions, providing emission factors in grams per vehicle and kilometre. Emission factors are defined for specific traffic situations, and traffic data is necessary in order to determine these traffic situations along a traffic network. The required traffic data, which consists of average speed and flow, can be obtained either from traffic models or sensor measurements. In large urban areas, the collection of cross-sectional data from stationary sensors is a costefficient method of deriving traffic data for emission modelling. However, the traditional approaches of extrapolating this data in time and space may not accurately capture the variations of the traffic variables when congestion is high, affecting the emission estimation. Static transportation planning models, commonly used for the evaluation of infrastructure investments and policy changes, constitute an alternative efficient method of estimating the traffic data. Nevertheless, their static nature may result in an inaccurate estimation of dynamic traffic variables, such as the location of congestion, having a direct impact on emission estimation. Congestion is strongly correlated with increased emission rates, and since emissions have location specific effects, the location of congestion becomes a crucial aspect. Therefore, the derivation of traffic data for emission modelling usually relies on the simplified, traditional approaches. The aim of this thesis is to identify, quantify and finally reduce the potential errors that these traditional approaches introduce in an emission estimation analysis. According to our main findings, traditional approaches may be sufficient for analysing pollutants with global effects such as CO2, or for large-scale emission modelling applications such as emission inventories. However, for more temporally and spatially sensitive applications, such as dispersion and exposure modelling, a more detailed approach is needed. In case of cross-sectional measurements, we suggest and evaluate the use of a more detailed, but computationally more expensive, data extrapolation approach. Additionally, considering the inabilities of static models, we propose and evaluate the post-processing of their results, by applying quasi-dynamic network loading.
Highway Safety Literature
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Author :
language : en
Publisher:
Release Date : 1982
Highway Safety Literature written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Automobiles categories.
Multilevel Optimization Algorithms And Applications
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Author : A. Migdalas
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-12-01
Multilevel Optimization Algorithms And Applications written by A. Migdalas and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-01 with Mathematics categories.
Researchers working with nonlinear programming often claim "the word is non linear" indicating that real applications require nonlinear modeling. The same is true for other areas such as multi-objective programming (there are always several goals in a real application), stochastic programming (all data is uncer tain and therefore stochastic models should be used), and so forth. In this spirit we claim: The word is multilevel. In many decision processes there is a hierarchy of decision makers, and decisions are made at different levels in this hierarchy. One way to handle such hierar chies is to focus on one level and include other levels' behaviors as assumptions. Multilevel programming is the research area that focuses on the whole hierar chy structure. In terms of modeling, the constraint domain associated with a multilevel programming problem is implicitly determined by a series of opti mization problems which must be solved in a predetermined sequence. If only two levels are considered, we have one leader (associated with the upper level) and one follower (associated with the lower level).
Transport Planning For Third World Cities Routledge Revivals
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Author : Harry T. Dimitriou
language : en
Publisher: Routledge
Release Date : 2013-06-26
Transport Planning For Third World Cities Routledge Revivals written by Harry T. Dimitriou and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-26 with Architecture categories.
Cities within the developing world experience a form of urban development which is different to those in more industrialised countries. Rates of growth are usually much more dramatic, housing and transport are often provided informally, and institutional support for urban management is also much weaker. The crux of this book, first published in 1990, lies in the idea that urban transport planning cannot be viewed in isolation from this wider development context. Making special reference to a number of countries, including Brazil, India and Indonesia, chapters discuss problems of urban transport planning, deficiencies in the theory and practice of conventional transport planning, and the emerging alternatives in the countries under examination. This work addresses problems that are still of great concern to urban policy planners, professionals and academics, as well as students from the fields of development studies, urban geography and planning, architecture and civil engineering.
Mathematical Methods On Optimization In Transportation Systems
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Author : M. Pursula
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-12-14
Mathematical Methods On Optimization In Transportation Systems written by M. Pursula and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-14 with Technology & Engineering categories.
This book contains selected papers from the presentations given at the 7th EURO-Working Group Meeting on 'Iransportation, which took place at the Helsinki University of Technology (HUT), Finland, during August 2-4, 1999. Altogether 31 presentations were given and 14 full papers have been selected in this publication through a peer review process coordinated by the editors. The papers in this book cover a wide range of transportation problems from the simulation of railway traffic to optimum congestion tolling and mode choice modeling with stated preference data. In general, the variety of papers clearly demonstrates the wide areas of interest of people who are involved in the research of transportation systems and their operation. They as well demonstrate the importance and possibilities of modeling and theoretical approaches in the analysis of transportation systems and problem solving. Most of the papers are purely theoretical in nature, that is, they present a theoretical model with only a hypothetical example of applica tion. There are, however, some papers, which are closer to the practice or describe applications of and give interesting results of studies made by known methodologies. It is especially noteworthy, that half of the accepted papers deal with planning and operation of public transport.
Proceedings Of The Sixth International Conference Of Transportation Research Group Of India
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Author : Lelitha Devi
language : en
Publisher: Springer Nature
Release Date : 2022-09-01
Proceedings Of The Sixth International Conference Of Transportation Research Group Of India written by Lelitha Devi and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-01 with Technology & Engineering categories.
This book comprises the proceedings of the Sixth International Conference of Transportation Research Group of India (CTRG2021) focusing on emerging opportunities and challenges in the field of transportation of people and freight. The contents of the volume include Traffic flow theory, Travel Behaviour, Walking Dynamics of Pedestrians, Urban Traffic characteristics, and uncontrolled intersections. This book will be beneficial to researchers, educators, practitioners, and policymakers alike.