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Human Factors: The Journal of the Human Factors and Ergonomics Society
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Risk Attitude Reversals in Drivers' Route Choice When Range of Travel Time Information Is Provided

Konstantinos V. Katsikopoulos

University of Massachusetts, Amherst, Massachusetts

Yawa Duse-Anthony

University of Massachusetts, Amherst, Massachusetts

Donald L. Fisher

University of Massachusetts, Amherst, Massachusetts

Susan A. Duffy

University of Massachusetts, Amherst, Massachusetts

Automobile drivers were recently found to be risk averse when choosing among routes that had an average travel time shorter than the certain travel time of a route considered as a reference. Conversely, drivers were found to be risk seeking when choosing among routes that had an average travel time longer than the certain travel time of the reference route. In a driving simulation study in which the reference route had a range of travel times, this pattern was replicated when the reference range was smaller than the ranges of the available routes. However, the pattern was reversed when the reference range was larger than the ranges of the available routes. We recently proposed a simple heuristic model that fit the relatively complex data quite well. Actual or potential applications of this research include the design of variable message signs and of route choice support systems.

Human Factors: The Journal of the Human Factors and Ergonomics Society, Vol. 44, No. 3, 466-473 (2002)
DOI: 10.1518/0018720024497718
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