Development of a Behaviorally Induced System Optimal Travel Demand Management System


The basic design concept of most advanced traveler information systems (ATIS) is to present generic information to travelers, leaving travelers to react to the information in their own way. This "passive" way of managing traffic by providing generic traffic information makes it difficult to predict the outcome and may even incur an adverse effect, such as overreaction (also referred to as the herding effect). Active traffic and demand management (ATDM) is another approach that has received continual attention from both academic research and real-world practice, aiming to effectively influence people's travel demand, provide more travel options, coordinate between travelers, and reduce the need for travel. The research discussed in this article deals with how to provide users with a travel option that aims to minimize the marginal system impact that results from this routing. The goal of this research is to take better advantage of the available real-time traffic information provided by ATIS, to further improve the system level traffic condition from User Equilibrium (UE), or a real-world traffic system that is worse than UE, toward System Optimal (SO), and avoid passively managing traffic. A behaviorally induced, system optimal travel demand management model is presented to achieve this goal through incremental routing. Both analytical derivation and numerical analysis have been conducted on Tucson network in Arizona, as well as on the Capital Area Metropolitan Planning Organization (CAMPO) network in Austin, TX. The outcomes of both studies show that our proposed modeling framework is promising for improving network traffic conditions toward SO, and results in substantial economic savings.


Civil, Architectural and Environmental Engineering

Keywords and Phrases

Behavioral research; Design; Motor transportation; Traffic control; Transportation; Active traffic and demand management (ATDM); Dynamic traffic assignments; System-optimal; Travel behaviour; Travel demand management (TDM); Advanced traveler information systems; Academic research; Economic conditions; Numerical model; Research work; Traffic management; Travel demand; Travel time; Arizona; Austin [Texas]; Texas; Tucson; United States; Behaviorally induced system optimal; System optimal

International Standard Serial Number (ISSN)

1547-2450; 1547-2442

Document Type

Article - Journal

Document Version


File Type





© 2017 Taylor & Francis, All rights reserved.

Publication Date

01 Jan 2017