Estimating The Capacity Of Transportation Systems

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Estimating The Capacity Of Transportation Systems

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Author : Edward K. Morlok
language : en
Publisher:
Release Date : 1998

Estimating The Capacity Of Transportation Systems written by Edward K. Morlok and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Freight and freightage categories.

Determining Roadway Capacity Using Direct Empirical Methods

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Author : Aminu Suleiman
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2014-07-22

Determining Roadway Capacity Using Direct Empirical Methods written by Aminu Suleiman 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 2014-07-22 with categories.

Estimation of a capacity of transportation systems and facilities is one of the major issues in traffic flow analysis. Capacity of a roadway can be estimated using direct or indirect empirical methods. The focus of this project is the estimation of a roadway operational capacity using four direct empirical methods (i.e. Generalized queuing model, Selected Maxima, Product Limit Selection and fundamental diagrams). The methods were used to estimate roadway capacity values using the traffic data obtained from Pontian Highway in Johor Malaysia. The results shows that the capacity values obtained with product-limit-selection method were closer to the observed maximum volumes for all the averaging time intervals(i.e. 5min,10min, 15min) considered. The next method that has capacity values closer to observed maximum volumes was fundamental diagram method. Headway method was found to have higher and exaggerated capacity values compared to the observed maximum volumes.fundamental diagram method was found to be the most suitable method because it takes in to account the finite nature of the road section by including density in the analysis.

Estimating Freight Transportation System Capacity Flexibility And Degraded Condition Performance

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Author : Yao Sun
language : en
Publisher:
Release Date : 2006

Estimating Freight Transportation System Capacity Flexibility And Degraded Condition Performance written by Yao Sun and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

Transportation Systems Analysis And Assessment

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Author : Stefano De Luca
language : en
Publisher: BoD – Books on Demand
Release Date : 2020-01-22

Transportation Systems Analysis And Assessment written by Stefano De Luca and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-22 with Technology & Engineering categories.

The transportation system is the backbone of any social and economic system, and is also a very complex system in which users, transport means, technologies, services, and infrastructures have to cooperate with each other to achieve common and unique goals.The aim of this book is to present a general overview on some of the main challenges that transportation planners and decision makers are faced with. The book addresses different topics that range from user's behavior to travel demand simulation, from supply chain to the railway infrastructure capacity, from traffic safety issues to Life Cycle Assessment, and to strategies to make the transportation system more sustainable.

Transportation Systems And Service Policy

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Author : John G. Schoon
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Transportation Systems And Service Policy written by John G. Schoon 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 Technology & Engineering categories.

The many aspects of urban transportation planning and design demand a multi faceted approach to ensure responsive, economical, and environmentally sensi tive facilities that enhance mobility. Yet all too easily the complexity of the process can obscure the major elements. This book aims at assisting the analyst to provide decision makers with a range of solutions by illustrating how service policies regarding quality of service, fares, investment levels, and environmental impacts affect and are affected by each other. This book, therefore, concentrates on the process of planning and design. It addresses the major elements of urban transportation planning, design, and impact estimation, and offers practice in undertaking typical projects. It focuses on the linkages and interaction with public policy regarding user service levels, and the resulting design and impacts. The process is illustrated by (1) outlining the individual transportation analysis and design techniques and their linkages, (2) describing the planning and design process, from population changes affect ing demand and mobility needs to estimation of air pollution and energy use impacts that are instrumental in shaping public policy and strategic planning, (3) presenting examples of transportation design projects showing how service policy may affect the physical and operational design of multimodal, urban trans portation systems, (4) enabling the readers to obtain practice in basic, applied transportation analysis, design, and impact estimation by defining the key service policy variables of projects for solution, and (5) familiarizing the reader with

Modelling For Transportation Systems Planning

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Author : Piet H. L. Bovy
language : en
Publisher:
Release Date : 2002

Modelling For Transportation Systems Planning written by Piet H. L. Bovy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Transportation categories.

Planning For Optimal Capacity Under Uncertainty With Application To Highway Transportation Systems

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Author :
language : en
Publisher:
Release Date : 1965

Planning For Optimal Capacity Under Uncertainty With Application To Highway Transportation Systems written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with categories.

The Transportation System S Capacity To Meet Grain Export Demand

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Author : Floyd D. Gaibler
language : en
Publisher:
Release Date : 1979

The Transportation System S Capacity To Meet Grain Export Demand written by Floyd D. Gaibler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Export marketing categories.

Schedule Based Modeling Of Transportation Networks

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Author : Nigel H. M. Wilson
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-10-22

Schedule Based Modeling Of Transportation Networks written by Nigel H. M. Wilson 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 2008-10-22 with Technology & Engineering categories.

"Schedule-Based Modeling of Transportation Networks: Theory and Applications" follows the book Schedule-Based Dynamic Transit Modeling, published in this series in 2004, recognizing the critical role that schedules play in transportation systems. Conceived for the simulation of transit systems, in the last few years the schedule-based approach has been expanded and applied to operational planning of other transportation schedule services besides mass transit, e.g. freight transport. This innovative approach allows forecasting the evolution over time of the on-board loads on the services and their time-varying performance, using credible user behavioral hypotheses. It opens new frontiers in transportation modeling to support network design, timetable setting, and investigation of congestion effects, as well as the assessment of such new technologies, such as users system information (ITS technologies).

Exploring The Spatial Implications Of Capacity Constraints In Public Transportation Systems

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Author : Stephen Bradford Tuttle
language : en
Publisher:
Release Date : 2014

Exploring The Spatial Implications Of Capacity Constraints In Public Transportation Systems written by Stephen Bradford Tuttle and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.

In growing regions with large public transportation systems, the distribution of available capacity can affect where development occurs and determine which users and land uses suffer from further crowding. However, analyzing the spatial relationship between available capacity and economic impacts may not be straightforward, and common modeling practice can bias results. Improved modeling practice that more realistically includes capacity and crowding effects has the potential to better predict the benefits of new transportation investments and land use densification strategies. A series of conventional and innovative techniques, based on static assignment, is applied in three planning scenarios to explore the spatial distribution of disbenefits from crowding in London's public transportation system. The featured scenario examines the crowding relief on existing commuter lines from the opening of a parallel high-speed rail (HSR) line. A sketch assignment model is developed in TransCAD to demonstrate the potential of common modeling practice to bias travel cost estimates, thereby distorting economic predictions. Conventional methods for enforcing capacity constraint, such as controlling vehicle loading through a link-based penalty, are shown to bias predictions of which users and land uses suffer from crowding. Second, the organized application of select link analysis is found to contribute to a better understanding of which transportation investments and land uses exacerbate crowding problems and which transportation facilities and land uses are vulnerable to crowding problems. Finally, the proposed high-speed rail line is found to reduce crowding on existing commuter lines, thereby improving the development potential of adjacent land uses. This research aims to highlight certain aspects of the spatial relationship between capacity constraints and economic impacts in large public transportation systems. However, further model refinements, sensitivity tests, and empirical validation are needed to substantiate the initial findings. This research explores only a subset of the potential service challenges from crowding. An enhanced static assignment model or dynamic assignment model could be applied to model these omitted service challenges and develop more robust conclusions.