01629641

Component

https://doi.org/10.3141/2664-11

Maintaining consistency between individuals’ activity choices and realistic network conditions is made possible through a unified framework of activity-based and dynamic traffic assignment models. In this study, a model formulation and solution approach is presented for an integrated system of household activity schedule adjustment and multimodal dynamic traffic assignment model. In the proposed framework, individuals are initially assigned an activity pattern that includes their activity start time, end time, sequence, and number of intermediate and final destinations. The planned schedules are loaded to the network and executed to obtain the dynamic traffic conditions. Next, the individuals who experience schedules inconsistent with the planned ones try to adjust their activity durations or trip departure times to accommodate the fluctuations. In some cases, however, the schedule inconsistencies may not be resolved through departure time or duration adjustments; therefore, the traveler may cancel an activity or trip as a response to the fluctuations. Strategies for selecting activities to be canceled are discussed, and the influence of incorporating activity cancellation on numerical convergence is presented.

01656344

17-06801

English

0000-0002-8443-8928

pp 100–109

2017

Transportation Research Record: Journal of the Transportation Research Board

9780309442077

Digital/other

Figures (6) ; References (27)

Activity choices; Dynamic traffic assignment; Mathematical models; Multimodal transportation; Network analysis (Planning); Scheduling

Highways; Planning and Forecasting; Public Transportation

TRIS, TRB, ATRI

Dec 8 2016 12:47PM

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