Traffic Breakdown Mechanism Of Hidden Bottlenecks On An Arterial Road
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Traffic Breakdown Mechanism Of Hidden Bottlenecks On An Arterial Road
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Author : Sugiarto Winarso
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2013
Traffic Breakdown Mechanism Of Hidden Bottlenecks On An Arterial Road written by Sugiarto Winarso and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Traffic congestion has been a serious social and technical problem since the early year's rapid motorization in Banda Aceh, Aceh Province Indonesia. Urban arterial performance becomes the crucial concerns of many traffic engineers. This study examined the impact of presence of u-turn and on-street parking on deterioration both travel speed and operated capacity.Arterial performances were analyzed using oblique cumulative plots and breakdown method as known as dynamic capacity methods.
Flying Magazine
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Author :
language : en
Publisher:
Release Date : 1946-02
Flying Magazine written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1946-02 with categories.
Dynamic Capacity Approach Theory And Applications For Traffic Breakdown Assessment At Unsystematic Bottlenecks
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Author : Sugiarto
language : en
Publisher: Syiah Kuala University Press
Release Date : 2022-12-30
Dynamic Capacity Approach Theory And Applications For Traffic Breakdown Assessment At Unsystematic Bottlenecks written by Sugiarto and has been published by Syiah Kuala University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-12-30 with Architecture categories.
Indonesia as an emerging country has a lot of traffic bottleneck challenges on urban road networks including in Banda Aceh, the capital of Aceh province. It is due to high traffic demand and limited supply of roadway. Consequently, traffic congestion leads to several externalities such as unnecessary travel times, air pollution, energy consumption, and driver frustration. An unsystematic bottleneck defines as a bottleneck that is without any changes in roadway geometric, and sometimes refers to hidden or virtual bottlenecks. Therefore, I wrote a basic traffic engineering book emphasizing the dynamic capacity method with application on virtual bottlenecks assessments. This book is aimed at undergraduate and postgraduate civil engineers particularly dealing with traffic planning and operation at the virtual bottlenecks. This book is essentially distinguished into six chapters. Chapter I and II deals with the traffic mechanism at unsystematic bottlenecks and its theoretical foundation for assessing the speed and capacity drops due to an active unsystematic bottleneck. The fundamental theory of static and dynamic approaches has been comprehensively discussed in this part. The following part of the chapter, III-VI covers practical assessment by considering U-turn and On-street parking bottlenecks as case studies including simulation methods to determine measures of the effectiveness of the design improvements. Data preparation, observation, analysis, and simulation are broadly deliberated for easy understanding for undergraduate and postgraduate university students. While this book is further intended for traffic engineering practitioners. I suppose that it will also be worth practicing for traffic and transport engineers as designers or planners.
Breakdown In Traffic Networks
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Author : Boris S. Kerner
language : en
Publisher: Springer
Release Date : 2017-05-26
Breakdown In Traffic Networks written by Boris S. Kerner and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-26 with Technology & Engineering categories.
This book offers a detailed investigation of breakdowns in traffic and transportation networks. It shows empirically that transitions from free flow to so-called synchronized flow, initiated by local disturbances at network bottlenecks, display a nucleation-type behavior: while small disturbances in free flow decay, larger ones grow further and lead to breakdowns at the bottlenecks. Further, it discusses in detail the significance of this nucleation effect for traffic and transportation theories, and the consequences this has for future automatic driving, traffic control, dynamic traffic assignment, and optimization in traffic and transportation networks. Starting from a large volume of field traffic data collected from various sources obtained solely through measurements in real world traffic, the author develops his insights, with an emphasis less on reviewing existing methodologies, models and theories, and more on providing a detailed analysis of empirical traffic data and drawing consequences regarding the minimum requirements for any traffic and transportation theories to be valid. The book - proves the empirical nucleation nature of traffic breakdown in networks - discusses the origin of the failure of classical traffic and transportation theories - shows that the three-phase theory is incommensurable with the classical traffic theories, and - explains why current state-of-the art dynamic traffic assignments tend to provoke heavy traffic congestion, making it a valuable reference resource for a wide audience of scientists and postgraduate students interested in the fundamental understanding of empirical traffic phenomena and related data-driven phenomenology, as well as for practitioners working in the fields of traffic and transportation engineering.
Understanding And Mitigating Capacity Reductions At Freeway Bottlenecks
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Author : Koo Hong Chung
language : en
Publisher:
Release Date : 2004
Understanding And Mitigating Capacity Reductions At Freeway Bottlenecks written by Koo Hong Chung and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Understanding And Mitigating Capacity Reduction And Freeway Bottlenecks
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Author : Koohong Chung
language : en
Publisher:
Release Date : 2005
Understanding And Mitigating Capacity Reduction And Freeway Bottlenecks written by Koohong Chung and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Dissertations, Academic categories.
Improving The Identification And Characterization Of Arterial Congestion Bottlenecks
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Author : Mo Zhao
language : en
Publisher:
Release Date : 2019
Improving The Identification And Characterization Of Arterial Congestion Bottlenecks written by Mo Zhao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Traffic congestion categories.
Performance-based and data-driven approaches are increasingly employed by transportation professionals to provide a strong foundation for making sound decisions and for optimizing investments. This study developed and evaluated one such method for identifying and ranking traffic bottlenecks. Bottleneck analysis tools currently available to the Virginia Department of Transportation (VDOT) typically analyze links along a roadway and do not consider the conditions on the side streets at intersections. This study proposed a new sketch planning bottleneck analysis and ranking method for arterial intersections using a node-link approach that examines all intersection approaches. The methodology uses widely available datasets such as probe vehicle speeds and annual average daily traffic (AADT). Impacts of different congestion threshold speeds and queue estimation methodologies were studied. A tool was developed to summarize, visualize, and drill down the results interactively. A case study was conducted using a Northern Virginia urban arterial network with 245 nodes, and an expert panel validated the study results with their field observations. Their comments and feedback showed high confidence in the results, pointing to the success of this proof-of-concept study. Additional feedback from VDOT, the Virginia Office of Intermodal Planning and Investment (OIPI), and localities indicated their high interest in using this methodology mainly because of the quantitative performance measures and the ability to support data-driven decision making. Their intended use cases include improved planning, funding, and evaluation of bottleneck mitigation solutions across their region and the state. Several lessons were learned during this study and documented, which will help to scale up this methodology for potential statewide adoption.