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Wardrop Equilibrium Can Be Boundedly Rational: A New Behavioral Theory of Route Choice by Li, Jiayang; Wang, Zhaoran; Nie, Yu Marco is a scholarly article available to read on EtoBox.

What is Wardrop Equilibrium Can Be Boundedly Rational: A New Behavioral Theory of Route Choice about?

As one of the most fundamental concepts in transportation science, Wardrop equilibrium (WE) has always had a relatively weak behavioral underpinning. To strengthen this foundation, one must reckon with bounded rationality in human decision-making processes, such as the lack of accurate information, limited computing power, and sub-optimal choices. This retreat from behavioral perfectionism in the literature, however, was typically accompanied by a conceptual modification of WE. Here, we show that giving up perfect rationality need not force a departure from WE. On the contrary, WE can be reached with global stability in a routing game played by boundedly rational travelers. We achieve this result by developing a day-to-day (DTD) dynamical model that mimics how travelers gradually adjust their route valuations, hence choice probabilities, based on past experiences. Our model, called cumulative logit (CumLog), resembles the classical DTD models but makes a crucial change: whereas the classical models assume routes are valued based on the cost averaged over historical data, ours values the routes based on the cost accumulated. To describe route choice behaviors, the CumLog model only

Author

Li, Jiayang; Wang, Zhaoran; Nie, Yu Marco

Published

2023

Language

EN