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An Agent-Based Approach to Travel Demand Modeling: An Exploratory Analysis

  • Lei Zhang
  • David Levinson

    ()

    (Nexus (Networks, Economics, and Urban Systems) Research Group, Department of Civil Engineering, University of Minnesota)

The paper develops an agent-based travel demand model. In this model, travel demands emerge from the interactions of three types of agents in the transportation system: node, arc and traveler. Simple local rules of agent behaviors are shown to be capable of efficiently solving complicated transportation problems such as trip distribution and traffic assignment. A unique feature of the agent-based model is that it explicitly models the goal, knowledge, searching behavior, and learning ability of related agents. The proposed model distributes trips from origins to destinations in a disaggregate manner and does not require path enumeration or any standard shortest-path algorithm to assign traffic to the links. A sample 10-by-10 grid network is used to facilitate the presentation. The model is also applied to the Chicago sketch transportation network with nearly 1000 trip generators and sinks, followed by a discussion of possible calibration procedures. The agent-based modeling techniques provide a flexible travel forecasting framework that facilitates the prediction of important macroscopic travel patterns from microscopic agent behaviors, and hence encourages the studies on individual travel behaviors. Future research directions are identified, as are the relationship between the agent-based and activity-based approaches for travel forecasting.

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File URL: http://nexus.umn.edu/Papers/Agent.pdf
File Function: First version, 2007
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Paper provided by University of Minnesota: Nexus Research Group in its series Working Papers with number 200405.

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Date of creation: 2004
Date of revision:
Publication status: Published in Transportation Research Record: Journal of the Transportation Research Board #1898 pp. 28-38
Handle: RePEc:nex:wpaper:agent
Contact details of provider: Postal: Dept. of Civil Engineering, 500 Pillsbury Drive SE, Minneapolis, MN 55455
Phone: +01 (612) 625-6354
Fax: +01 (612) 626-7750
Web page: http://nexus.umn.edu

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  1. Bhanu Yerra & David Levinson, 2005. "The Emergence of Hierarchy in Transportation Networks," Working Papers 200507, University of Minnesota: Nexus Research Group.
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