Transportation Network Analysis For Reliability Based On Path Failure Strategies
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Transportation Network Analysis For Reliability Based On Path Failure Strategies
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Author : Veera Venkata Gopi Sai Krishna Tadikamalla
language : en
Publisher:
Release Date : 2017
Transportation Network Analysis For Reliability Based On Path Failure Strategies written by Veera Venkata Gopi Sai Krishna Tadikamalla and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Roads categories.
Critical paths of a transportation network are the most frequently used paths of that network. Road maintenance, car accidents that cause failure of independent paths or sub-networks have a severe impact on the reliability of the transportation network. Several methods exist to analyze the reliability of the transport network such as the concepts of connect reliability, and network reliability technique to monitor the current traffic status.
Transportation Network Analysis
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Author : M. G. H. Bell
language : en
Publisher: John Wiley & Sons
Release Date : 1997-04-21
Transportation Network Analysis written by M. G. H. Bell and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-04-21 with Technology & Engineering categories.
Transportation Networks. Optimality. Cost Functions. Deterministic User Equilibrium Assignment. Stochastic User Equilibrium Assignment. Trip Table Estimation. Network Reliability. Network Design. Conclusions. References. Index.
Communication And Transportation Networks Reliability Using Routing Models
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Author : Brunilde Sansó
language : en
Publisher: Montréal : Centre for Research on Transportation = Centre de recherche sur les transports
Release Date : 1989
Communication And Transportation Networks Reliability Using Routing Models written by Brunilde Sansó and has been published by Montréal : Centre for Research on Transportation = Centre de recherche sur les transports this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
Vulnerability Analysis For Transportation Networks
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Author : Michael Taylor
language : en
Publisher: Elsevier
Release Date : 2017-06-07
Vulnerability Analysis For Transportation Networks written by Michael Taylor and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-07 with Transportation categories.
Vulnerability Analysis for Transportation Networks provides an integrated framework for understanding and addressing how transportation networks across all modes perform when parts of the network fail or are substantially degraded, such as extreme weather events, natural disasters, road crashes, congestion incidents or road repair. The book reviews the range of existing approaches to network vulnerability and identifies the application of each approach, illustrating them with case studies from around the world. The book covers the dimensions of time (hours, days, weeks, months and years), spatial coverage (national networks, regional areas, metropolitan and urbanized areas) and modes (road, urban public transport and national railway systems). It shows how the provided framework can be used to indicate the most suitable accessibility tools and metrics for a particular application. Vulnerability Analysis for Transportation Networks is for academics and researchers in transportation networks and for practicing professionals involved in the planning and management of transportation networks and services. Presents the most current, complete and integrated account of transport network vulnerability analysis Includes numerous case studies from around the world Compares alternative approaches to vulnerability analysis for multiple modes and the applicability of each Shows how academic transport network planning and management research development can be applied to actual practice, with special focus on socio-economic and environmental impacts
Reliable Transportation Networks Utilizing Emerging Technologies And Pricing Strategies
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Author : Seyede Fatemeh Fakhrmoosavi
language : en
Publisher:
Release Date : 2021
Reliable Transportation Networks Utilizing Emerging Technologies And Pricing Strategies written by Seyede Fatemeh Fakhrmoosavi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Electronic dissertations categories.
Travel time reliability plays a pivotal role in the system efficiency and level of service of transportation networks. Transportation network users are heterogeneous, and they may value travel time reliability differently. The importance level of travel time reliability for different travelers depends upon many factors including the user's risk acceptance level and trip purpose and departure time. Thus, travelers tend to maximize travel time reliability, in addition to minimizing their travel times. One of the main challenges in transportation planning is the high computational time of traffic simulation tools that consider heterogeneous users and their responses to travel time reliability. Path finding problem constitutes an essential problem in these traffic simulation tools. Therefore, this study presents two heuristic algorithms to improve the computational time of reliable path finding algorithms by reducing the network size of each specific origin and destination pair in stochastic time-dependent networks. The network contraction algorithms, presented in this study, are based on the comparison of optimistic and pessimistic solutions resulting from minimum and maximum travel time realizations of a Monte-Carlo simulation-based approach. The major contribution of the proposed approach is to improve computational efficiency of the stochastic path finding problem, considering travel time correlations and travelers' heterogeneity, in large-scale applications. Comparing the performance and accuracy of the approach with those of the approach without any network contraction for two large-scale networks demonstrates significant computational improvements and a high accuracy level.Different traffic and demand management strategies have also been used to improve reliability of transportation networks. These strategies, including congestion pricing, have great impacts on users' reliable path choices. Considering a reliability measure in the travelers' path choices naturally impacts the congestion pattern, which in turn, affects the outcomes of pricing strategies. Furthermore, congestion pricing alters link travel time distributions in stochastic transportation networks. Therefore, this study finds an equitable pricing scheme that minimizes the total travel time of auto users in a general bimodal network considering heterogeneous users with different values of time and reliability. The main contribution of this proposed approach is accounting for travel time reliability in finding an equitable pricing scheme. This approach is successfully applied to a modified Sioux Falls network to explore the impacts of subsidization strategy, congestion level, and considering travel time reliability on the pricing strategy and its effectiveness.Finally, emerging technologies, such as connected and autonomous vehicle technologies, have attracted the attention of transportation system planners in recent years, as an alternative to improve mobility and reliability of transportation networks. Having a traffic simulation tool that considers the presence of these technologies is essential to estimate their impacts on traffic congestion and travel time reliability. Therefore, this study presents a mesoscopic simulation tool to account for the presence of connected and autonomous vehicles at the network level by incorporating adaptive fundamental diagrams due to the non-uniform distribution of different vehicle types with heterogeneous drivers. This tool is then used to investigate the impacts of a mixed traffic of connected, autonomous, and human-driven vehicles on traffic flow and travel time reliability at the network level. The results show the superiority of connected and autonomous vehicles over regular vehicles in mitigating traffic congestion and improving travel time reliability.
Practical Guidance For Defining A Smart Grid Modernization Strategy
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Author : Marcelino Madrigal
language : en
Publisher: World Bank Publications
Release Date : 2017-03-22
Practical Guidance For Defining A Smart Grid Modernization Strategy written by Marcelino Madrigal and has been published by World Bank Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-22 with Science categories.
Practical Guidance for Defi ning a Smart Grid Modernization Strategy: The Case of Distribution guides stakeholders on how utilities can defi ne their own smart grid vision, identify priorities, and structure investment plans. While most of these strategic aspects apply to any area of the electricity grid, the book focuses on distribution. The guidance includes key building blocks for modernizing the distribution grid and provides examples of grid modernization projects. This revised edition also includes key communication system requirements to support a well-functioning grid. The concept of the smart grid is relevant to all grids. What varies are the magnitude and type of the incremental steps toward modernization for achieving a specifi c smart grid vision. A utility that is at a relatively low level of grid modernization may leapfrog one or more levels of modernization to achieve some of the benefi ts of the highest levels of grid modernization. Smart grids impact electric distribution systems signifi cantly. In developing countries, modernizing the distribution grid promises to benefi t the operation of electric distribution utilities in many and various ways. These benefi ts include improved operational effi ciency (such as reduced losses and lower energy consumption), reduced peak demand, improved service reliability, and ability to accommodate distributed generating resources without adversely impacting overall power quality. Practical Guidance for Defi ning a Smart Grid Modernization Strategy concludes by describing funding and regulatory issues that may need to be taken into account when developing smart grid plans. The World Bank Studies series is available for free download online through the Open Knowledge Repository (https://openknowledge.worldbank.org).
Maintenance Safety Risk Management And Life Cycle Performance Of Bridges
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Author : Nigel Powers
language : en
Publisher: CRC Press
Release Date : 2018-07-04
Maintenance Safety Risk Management And Life Cycle Performance Of Bridges written by Nigel Powers and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-04 with Technology & Engineering categories.
Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges contains lectures and papers presented at the Ninth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2018), held in Melbourne, Australia, 9-13 July 2018. This volume consists of a book of extended abstracts and a USB card containing the full papers of 393 contributions presented at IABMAS 2018, including the T.Y. Lin Lecture, 10 Keynote Lectures, and 382 technical papers from 40 countries. The contributions presented at IABMAS 2018 deal with the state of the art as well as emerging concepts and innovative applications related to the main aspects of bridge maintenance, safety, risk, management and life-cycle performance. Major topics include: new design methods, bridge codes, heavy vehicle and load models, bridge management systems, prediction of future traffic models, service life prediction, residual service life, sustainability and life-cycle assessments, maintenance strategies, bridge diagnostics, health monitoring, non-destructive testing, field testing, safety and serviceability, assessment and evaluation, damage identification, deterioration modelling, repair and retrofitting strategies, bridge reliability, fatigue and corrosion, extreme loads, advanced experimental simulations, and advanced computer simulations, among others. This volume provides both an up-to-date overview of the field of bridge engineering and significant contributions to the process of more rational decision-making on bridge maintenance, safety, risk, management and life-cycle performance of bridges for the purpose of enhancing the welfare of society. The Editors hope that these Proceedings will serve as a valuable reference to all concerned with bridge structure and infrastructure systems, including students, researchers and engineers from all areas of bridge engineering.
Reliability Optimization Of Urban Logistics Systems
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Author : Hao Zhang
language : en
Publisher: Springer Nature
Release Date : 2022-03-21
Reliability Optimization Of Urban Logistics Systems written by Hao Zhang and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-03-21 with Business & Economics categories.
This book studies the urban logistics system from the perspective of reliability, based on the theory of urban logistics and system reliability, with the research of urban logistics system reliability as the main line, with matter element analysis and ant colony algorithm as the main research tools. On this basis, this book closely focuses on the connotation, influencing factors, measurement, optimization, and other issues of the reliability of urban logistics systems. By analyzing the influencing factors and constituent contents of the reliability of urban logistics system, the reliability measurement is researched, and the reliability optimization model of urban logistics system is established, which is suitable for popular science reading or in-depth study by readers with a certain foundation.
Urban Transportation Networks
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Author : Yosef Sheffi
language : en
Publisher: Prentice Hall
Release Date : 1984
Urban Transportation Networks written by Yosef Sheffi and has been published by Prentice Hall this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Political Science categories.
The Network Reliability Of Transport
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Author : M. G. H. Bell
language : en
Publisher: Elsevier
Release Date : 2003-05-08
The Network Reliability Of Transport written by M. G. H. Bell and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-05-08 with Political Science categories.
The reliability of transportation networks has become an increasingly important issue as sustained economic growth and improvements to the quality of life around the world lead to increases in the value of time. Consequently, schedules and routes need to be able to accommodate the unexpected, like accidents, disasters or traffic flow fluctuations, with as little loss in operational efficiency as possible. Sources of unreliability include variation of demand and supply. It is widely expected that network reliability analysis will play a more important role in the planning, design and management of transportation facilities and networks in the future. This book is an outcome of the First International Symposium on Transport Network Reliability (INSTR), held at Kyoto in 2001, and consists of 24 selected papers. It covers various aspects of transport network reliability, such as definitions and methodological developments for reliability indices, behavioural analysis under uncertainty, evaluation methods for the disaster resistance of transport networks, and simulation/observation of travel time reliability.