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Author: Patrick Todd Jordan
Publisher:
ISBN:
Category :
Languages : en
Pages : 202
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Book Description
Activity based models and dynamic traffic assignment models have begun to emerge in the transportation planning industry as an alternative method to the traditional four-step model by more realistically representing trip tours on a finer time scale and depicting the effects of time-dependent traffic flow throughout the network. A barrier, however, for many MPOs across the country to developing ABMs and DTA models is the immense amount of resources required to produce and validate a complete network. Having the capability of using trip tables produced using the four-step model allows MPOs to benefit from the advantages of using a dynamic model while accepting some inaccuracies due to inherent incompatibilities between model methodologies. DTA models have predominately lacked the ability to represent transit apart from pre-specified dwell times, yet current initiatives are focused on developing FAST-TrIPs as a dynamic transit assignment model capable of integrating with DTA software packages to better account for variations in transit ridership. This thesis seeks to act as a guide for MPOs looking to implement existing transit trip tables from a four-step model in conjunction with FAST-TrIPs dynamic transit assignment software to analyze the affects of transit vehicle congestion and schedule reliability at the passenger level. Due to innate assumptions made when modeling transit in the four-step model such as transit schedule and accessibility, modelers must take particular care in characterizing inputs for the dynamic model. Proposals are made related to developing the transit network, processing transit demand, and creating configuration settings for the model. A case study set in Austin, TX uses the regional transit network and transit demand to emphasize particular inputs that are susceptible to causing passengers to go unassigned due to the inconsistency of the models while suggesting opportunities to limit such issues. Due to the high variability in current four-step model structures, the goal of this thesis provides readers with the proper knowledge necessary to develop unique processes applicable to their own region.
Author: Patrick Todd Jordan
Publisher:
ISBN:
Category :
Languages : en
Pages : 202
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Book Description
Activity based models and dynamic traffic assignment models have begun to emerge in the transportation planning industry as an alternative method to the traditional four-step model by more realistically representing trip tours on a finer time scale and depicting the effects of time-dependent traffic flow throughout the network. A barrier, however, for many MPOs across the country to developing ABMs and DTA models is the immense amount of resources required to produce and validate a complete network. Having the capability of using trip tables produced using the four-step model allows MPOs to benefit from the advantages of using a dynamic model while accepting some inaccuracies due to inherent incompatibilities between model methodologies. DTA models have predominately lacked the ability to represent transit apart from pre-specified dwell times, yet current initiatives are focused on developing FAST-TrIPs as a dynamic transit assignment model capable of integrating with DTA software packages to better account for variations in transit ridership. This thesis seeks to act as a guide for MPOs looking to implement existing transit trip tables from a four-step model in conjunction with FAST-TrIPs dynamic transit assignment software to analyze the affects of transit vehicle congestion and schedule reliability at the passenger level. Due to innate assumptions made when modeling transit in the four-step model such as transit schedule and accessibility, modelers must take particular care in characterizing inputs for the dynamic model. Proposals are made related to developing the transit network, processing transit demand, and creating configuration settings for the model. A case study set in Austin, TX uses the regional transit network and transit demand to emphasize particular inputs that are susceptible to causing passengers to go unassigned due to the inconsistency of the models while suggesting opportunities to limit such issues. Due to the high variability in current four-step model structures, the goal of this thesis provides readers with the proper knowledge necessary to develop unique processes applicable to their own region.
Author: Nigel H. M. Wilson
Publisher: Springer Science & Business Media
ISBN: 1475764677
Category : Business & Economics
Languages : en
Pages : 288
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Book Description
Schedule-Based Dynamic Transit Modeling: Theory and Applications outlines the new schedule-based dynamic approach to mass transit modeling. In the last ten years the schedule-based dynamic approach has been developed and applied especially for operational planning. It allows time evolution of on-board loads and travel times for each run of each line to be obtained, and uses behavioral hypotheses strictly related to transit systems and user characteristics. It allows us to open new frontiers in transit modelling to support network design, timetable setting, investigation of congestion effects, as well as the assessment of new technologies introduction, such as information to users (ITS technologies). The contributors and editors of the book are leading researchers in the field of transportation, and in this volume they build a solid foundation for developing still more sophisticated models. These future models of mass transit systems will continue to add higher levels of accuracy and sensitivity desired in forecasting the performance of public transport systems.
Author: Agostino Nuzzolo
Publisher: CRC Press
ISBN: 1315351986
Category : Computers
Languages : en
Pages : 229
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Book Description
The growing mobility needs of travellers have led to the development of increasingly complex and integrated multi-modal transit networks. Hence, transport agencies and transit operators are now more urgently required to assist in the challenging task of effectively and efficiently planning, managing, and governing transit networks. A pre-condition for the development of an effective intelligent multi-modal transit system is the integration of information and communication technology (ICT) tools that will support the needs of transit operators and travellers. To achieve this, reliable real-time simulation and short-term forecasting of passenger demand and service network conditions are required to provide both real-time traveller information and successfully synchronise transit service planning and operations control. Modelling Intelligent Multi-Modal Transit Systems introduces the current trends in this newly emerging area. Recent developments in information technology and telematics have enabled a large amount of data to become available, thus further attracting transport researchers to set up new models outside the context of the traditional data-driven approach. The alternative demand-supply interaction or network assignment modelling approach has improved greatly in recent years and has a crucial role to play in this new context.
Author: National Research Council (U.S.). Transportation Research Board
Publisher:
ISBN:
Category : Choice of transportation
Languages : en
Pages : 140
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Book Description
Author: Ennio Cascetta
Publisher: Springer Science & Business Media
ISBN: 1475768737
Category : Technology & Engineering
Languages : en
Pages : 723
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Book Description
"This book provides a rigorous and comprehensive coverage of transportation models and planning methods and is a must-have to anyone in the transportation community, including students, teachers, and practitioners." Moshe Ben-Akiva, Massachusetts Institute of Technology.
Author: Nigel H. M. Wilson
Publisher: Springer Science & Business Media
ISBN: 0387848126
Category : Technology & Engineering
Languages : en
Pages : 319
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Book Description
"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).
Author:
Publisher: Transportation Research Board
ISBN: 0309214009
Category : Traffic estimation
Languages : en
Pages : 170
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Book Description
TRB’s National Cooperative Highway Research Program (NCHRP) Report 716: Travel Demand Forecasting: Parameters and Techniques provides guidelines on travel demand forecasting procedures and their application for helping to solve common transportation problems.
Author: Ennio Cascetta
Publisher: Springer Science & Business Media
ISBN: 0387758577
Category : Business & Economics
Languages : en
Pages : 753
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Book Description
"This book provides a rigorous and comprehensive coverage of transportation models and planning methods and is a must-have to anyone in the transportation community, including students, teachers, and practitioners." Moshe Ben-Akiva, Massachusetts Institute of Technology.
Author: Rubén Cordera
Publisher: CRC Press
ISBN: 1351361538
Category : Architecture
Languages : en
Pages : 220
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Book Description
Transport and the spatial location of population and activities have been important themes of study in engineering, social sciences and urban and regional planning for many decades. However, an integrated approach to the modelling of transport and land use has been rarely made, and common practice has been to model both phenomena independently. This book presents an introduction to the modelling of land use and transport interaction (LUTI), with a theoretical basis and a presentation of the broad state of the art. It also sets out the steps for building an operational LUTI model to provide a concrete application. The authors bring extensive experience in this cross-disciplinary field, primarily for an academic audience and for professionals seeking a thorough introduction.
Author: Bert van Wee
Publisher: Edward Elgar Publishing
ISBN: 1802206779
Category : Business & Economics
Languages : en
Pages : 403
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Book Description
This extensively updated textbook introduces the transport system and its societal impacts in a holistic and multidisciplinary way. A timely second edition, it includes new analyses of travel behaviour and the transport system’s impacts on health and well-being.
