Route choice, travel time variability, and rational inattention

Gege Jiang; Mogens Fosgerau; Hong K. Lo

doi:10.1016/j.trb.2019.05.020

Route choice, travel time variability, and rational inattention

Gege Jiang^*, Mogens Fosgerau, Hong K. Lo

^*Corresponding author for this work

6 Citations (Scopus)

Abstract

This paper sets up a rational inattention model for the route choice problem in a stochastic network where travelers face random travel time. Previous research has assumed that travelers incorporate all provided information without effort. This study assumes that information is costly and that travelers rationally choose how much information to acquire prior to choosing route. We begin with a single traveler and then extend the model to heterogeneous travelers where rationally inattentive user equilibrium (RIUE) is achieved. From the perspective of a single traveler, more information always reduces the impact of travel time variability and increases the probability of choosing a less costly route. However, in RIUE, more information may reduce the social welfare in some scenarios.

Original language	English
Journal	Transportation Research Part B: Methodological
ISSN	0191-2615
DOIs	https://doi.org/10.1016/j.trb.2019.05.020
Publication status	Published - Feb 2020

Keywords

Discrete choice
Imperfect information
Information strategy
Rational inattention
Travel time variability

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10.1016/j.trb.2019.05.020

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title = "Route choice, travel time variability, and rational inattention",

abstract = "This paper sets up a rational inattention model for the route choice problem in a stochastic network where travelers face random travel time. Previous research has assumed that travelers incorporate all provided information without effort. This study assumes that information is costly and that travelers rationally choose how much information to acquire prior to choosing route. We begin with a single traveler and then extend the model to heterogeneous travelers where rationally inattentive user equilibrium (RIUE) is achieved. From the perspective of a single traveler, more information always reduces the impact of travel time variability and increases the probability of choosing a less costly route. However, in RIUE, more information may reduce the social welfare in some scenarios.",

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AU - Fosgerau, Mogens

AU - Lo, Hong K.

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N2 - This paper sets up a rational inattention model for the route choice problem in a stochastic network where travelers face random travel time. Previous research has assumed that travelers incorporate all provided information without effort. This study assumes that information is costly and that travelers rationally choose how much information to acquire prior to choosing route. We begin with a single traveler and then extend the model to heterogeneous travelers where rationally inattentive user equilibrium (RIUE) is achieved. From the perspective of a single traveler, more information always reduces the impact of travel time variability and increases the probability of choosing a less costly route. However, in RIUE, more information may reduce the social welfare in some scenarios.

AB - This paper sets up a rational inattention model for the route choice problem in a stochastic network where travelers face random travel time. Previous research has assumed that travelers incorporate all provided information without effort. This study assumes that information is costly and that travelers rationally choose how much information to acquire prior to choosing route. We begin with a single traveler and then extend the model to heterogeneous travelers where rationally inattentive user equilibrium (RIUE) is achieved. From the perspective of a single traveler, more information always reduces the impact of travel time variability and increases the probability of choosing a less costly route. However, in RIUE, more information may reduce the social welfare in some scenarios.

KW - Discrete choice

KW - Imperfect information

KW - Information strategy

KW - Rational inattention

KW - Travel time variability

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DO - 10.1016/j.trb.2019.05.020

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SN - 0191-2615

JO - Transportation Research. Part B: Methodological

JF - Transportation Research. Part B: Methodological

ER -

Route choice, travel time variability, and rational inattention

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Keywords

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