01340458

Component

This paper presents a sequential departure time and route choice model to analyze travelers' departure time shifts due to highway work zone delays. It is a known fact that travelers adjust their departure times responding to the additional delays during highway construction. To our best knowledge, however, no work zone studies have taken such departure time shifts into their analyses. Using TRansportation ANalysis and SIMulation System (TRANSIMS), this study demonstrates how the departure time shifts can be analyzed. A day-to-day evolutionary approach is applied in seeking dynamic user equilibrium for the combined departure time and route choice problem. After demonstrating the capability of the proposed algorithm in a small test network, the method is experimented in an actual work zone project in downtown Detroit. The result shows that the equilibrium model solely based on route choice may overestimate highway work zone delays. This study sheds lights on the practicality of departure time shift analysis in highway work zone problems.

01329018

11-3095

English

21p

2011

Transportation Research Board 90th Annual Meeting

DVD

Figures (11) ; References (25) ; Tables (1)

Algorithms; Departure time; Route choice; Shifts; Traffic delays; Traffic estimation; Work zone safety; Work zone traffic control

TRANSIMS (Computer model)

Dynamic user equilibrium

Detroit (Michigan)

Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning

Transportation Research Board Annual Meeting 2011 Paper #11-3095

TRIS, TRB

Feb 17 2011 6:24PM