TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

Activity Scheduling and Travel Choices in a Dynamic Network: Equilibrium Concept and Properties of ABM-DTA Integrated Model Framework

Accession Number:

01629803

Record Type:

Component

Abstract:

Capturing the details obtained from activity based models within dynamic traffic assignment models, and vise versa necessitate development of a robust integrated framework. Traditional studies are mainly conceptual models of integration, or they address the integrated system considering static traffic assignment models. In this study the authors aim at developing a rigorous framework for such an integrated system. A household activity scheduling model coupled with the dynamic traffic assignment, where individuals’ choices are made within a user equilibrium framework is considered. The proposed framework provides achievement of faster algorithmic convergence for the integration of activity based and dynamic traffic assignment models by serving as an inner adjustment process. Individuals are assumed to associate a disutility to their travel patterns, which they try to minimize. First, an individual disutility is defined as a function of schedule inconsistencies and total travel costs. Then the equilibrium problem is formulated as a fixed point equilibrium problem. A variational inequality (VI) formulation is presented, and it is shown that the solution to the VI problem meets the user equilibrium conditions. Subsequently, an equivalent gap function is defined for the VI formulation, and a solution algorithm applicable to large scale real world networks is presented. Solution properties of the problem formulation are discussed through analysis of continuity and monotonicty of the involved functions in the proposed fixed point formulation.

Supplemental Notes:

This paper was sponsored by TRB committee ADB30 Standing Committee on Transportation Network Modeling.

Monograph Accession #:

01618707

Report/Paper Numbers:

17-06537

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Halat, Hooram
Mahmassani, Hani S

ORCID 0000-0002-8443-8928

Zockaie, Ali

Pagination:

23p

Publication Date:

2017

Conference:

Transportation Research Board 96th Annual Meeting

Location: Washington DC, United States
Date: 2017-1-8 to 2017-1-12
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References

Uncontrolled Terms:

Activity based modeling

Geographic Terms:

Chicago (Illinois)

Subject Areas:

Highways; Planning and Forecasting

Source Data:

Transportation Research Board Annual Meeting 2017 Paper #17-06537

Files:

TRIS, TRB, ATRI

Created Date:

Dec 8 2016 12:40PM