Dynamic traveler response model for seismic risk analysis of transportation systems

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Publication Type thesis
School or College College of Engineering
Department Civil & Environmental Engineering
Author Kim, Hyun Chan
Title Dynamic traveler response model for seismic risk analysis of transportation systems
Date 2009-05
Description Earthquakes could significantly impact road network capacity and further change spatial and temporal traffic demand patterns. This paper presents a practically useful dynamic traveler microassignment model to simultaneously capture variable traffic demand and departure time choice dynamic for different trip purposes. These travel choice dimensions are integrated in a stochastic utility maximization framework that considers multiple user decision criteria, such as travel time and schedule delay. For a typical case that assumes the logit-based alternative choice model, this paper develops an equivalent gap function-based optimization formulation and a heuristic iterative solution procedure. A case study using a large-scale transportation network (adapted from the Salt Lake City metropolitan area) is presented to illustrate the capability of the proposed system integration for realistic traffic impact studies. Experimental results from two network damage scenarios show the dramatic changes in postearthquake traffic demand, departure time, and route choice patterns; a small amount of capacity loss in critical links could lead to substantial networkwide travel time increases.
Type Text
Publisher University of Utah
Subject Roads; Transportation; Earthquake hazard analysis
Dissertation Institution University of Utah
Dissertation Name MS
Language eng
Relation is Version of Digital reproduction of "Dynamic traveler response model for seismic risk analyis of transportation systems" J. Willard Marriott Library Special Collections, TE7.5 2009 .K54
Rights Management © Hyun Chan Kim
Format Medium application/pdf
Format Extent 117,424 bytes
Identifier us-etd2,97519
Source Original: University of Utah J. Willard Marriott Library Special Collections
ARK ark:/87278/s632099w
Setname ir_etd
Date Created 2012-04-23
Date Modified 2012-05-16
ID 192239
Reference URL https://collections.lib.utah.edu/ark:/87278/s632099w
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