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Recent Progress in Activity-Based Travel Demand Modeling

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Author :
Release : 2019
Genre : Electronic books
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Recent Progress in Activity-Based Travel Demand Modeling by : Hai L. Vu

Download or read book Recent Progress in Activity-Based Travel Demand Modeling written by Hai L. Vu. This book was released on 2019. Available in PDF, EPUB and Kindle. Book excerpt: Over 30¬†years have passed since activity-based travel demand models (ABMs) emerged to overcome the limitations of the preceding models which have dominated the field for over 50¬†years. Activity-based models are valuable tools for transportation planning and analysis, detailing the tour and mode-restricted nature of the household and individual travel choices. Nevertheless, no single approach has emerged as a dominant method, and research continues to improve ABM features to make them more accurate, robust, and practical. This paper describes the state of art and practice, including the ongoing ABM research covering both demand and supply considerations. Despite the substantial developments, ABM,Äôs abilities in reflecting behavioral realism are still limited. Possible solutions to address this issue include increasing the inaccuracy of the primary data, improved integrity of ABMs across days of the week, and tackling the uncertainty via integrating demand and supply. Opportunities exist to test, the feasibility of spatial transferability of ABMs to new geographical contexts along with expanding the applicability of ABMs in transportation policy-making.

Equilibrium and Advanced Transportation Modelling

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Author :
Release : 2013-06-29
Genre : Business & Economics
Kind : eBook
Book Rating : 577/5 ( reviews)

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Book Synopsis Equilibrium and Advanced Transportation Modelling by : P. Marcotte

Download or read book Equilibrium and Advanced Transportation Modelling written by P. Marcotte. This book was released on 2013-06-29. Available in PDF, EPUB and Kindle. Book excerpt: Each chapter in Equilibrium and Advanced Transportation Modelling develops a topic from basic concepts to the state-of-the-art, and beyond. All chapters relate to aspects of network equilibrium. Chapter One advocates the use of simulation models for the representation of traffic flow movements at the microscopic level. Chapter Two presents travel demand systems for generating trip matrices from activity-based models, taking into account the entire daily schedule of network users. Chapter Three examines equilibrium strategic choices adopted by the passengers of a congested transit system, carefully addressing line selection at boarding and transfer nodes. Chapter Four provides a critical appraisal of the traditional process that consists in sequentially performing the tasks of trip generation, trip distribution, mode split and assignment, and its impact on the practice of transportation planning. Chapter Five gives an insightful overview of stochastic assignment models, both in the static and dynamic cases. Chapters Six and Seven investigate the setting of tolls to improve traffic flow conditions in a congested transportation network. Chapter Eight provides a unifying framework for the analysis of multicriteria assignment models. In this chapter, available algorithms are summarized and an econometric perspective on the estimation of heterogeneous preferences is given. Chapter Nine surveys the use of hyperpaths in operations research and proposes a new paradigm of equilibrium in a capacitated network, with an application to transit assignment. Chapter Ten analyzes the transient states of a system moving towards equilibrium, using the mathematical framework of projected dynamical systems. Chapter Eleven discusses an in-depth survey of algorithms for solving shortest path problems, which are pervasive to any equilibrium algorithm. The chapter devotes special attention to the computation of dynamic shortest paths and to shortest hyperpaths. The final chapter considers operations research tools for reducing traffic congestion, in particular introducing an algorithm for solving a signal-setting problem formulated as a bilevel program.

Activity-based Travel Demand Models

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Author :
Release : 2015
Genre : Transportation
Kind : eBook
Book Rating : 992/5 ( reviews)

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Book Synopsis Activity-based Travel Demand Models by : Joe Castiglione (Writer on transportation)

Download or read book Activity-based Travel Demand Models written by Joe Castiglione (Writer on transportation). This book was released on 2015. Available in PDF, EPUB and Kindle. Book excerpt: TRB's second Strategic Highway Research Program (SHRP 2) Report S2-C46-RR-1: Activity-Based Travel Demand Models: A Primer explores ways to inform policymakers' decisions about developing and using activity-based travel demand models to better understand how people plan and schedule their daily travel. The document is composed of two parts. The first part provides an overview of activity-based model development and application. The second part discusses issues in linking activity-based models to dynamic network assignment models.

Recent Advances in Activity-Based Travel Demand Models for Greater Flexibility

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Author :
Release : 2018
Genre : Choice of transportation
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Recent Advances in Activity-Based Travel Demand Models for Greater Flexibility by :

Download or read book Recent Advances in Activity-Based Travel Demand Models for Greater Flexibility written by . This book was released on 2018. Available in PDF, EPUB and Kindle. Book excerpt: Most existing activity-based travel demand models are implemented in a tour-based microsimulation framework. Due to the significant computational and data storage benefits, the demand microsimulation allows a greater amount of flexibility in terms of demographic market segmentation, temporal scale, and spatial resolution, and thus the models can represent a wider range of travel behavior aspects associated with various policies and scenarios. This dissertation proposes three innovative methodologies, one for each of the three key dimensions, to fulfill the greater level of details toward a more mature state of activity-based travel demand models.

Developments in Dynamic and Activity-based Approaches to Travel Analysis

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Author :
Release : 1990
Genre : Transportation
Kind : eBook
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Book Synopsis Developments in Dynamic and Activity-based Approaches to Travel Analysis by : Peter Jones

Download or read book Developments in Dynamic and Activity-based Approaches to Travel Analysis written by Peter Jones. This book was released on 1990. Available in PDF, EPUB and Kindle. Book excerpt:

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