Title
Risk Aversion, Road Choice, and the One-Armed Bandit Problem
Abstract
This paper provides a theoretical analysis of advanced traveler information systems for road choice with risk-averse drivers who rationally learn over time, in a simple setting. For this purpose, we study the one-armed bandit problem where a driver selects, day after day, either a safe or a random road. Four information regimes are envisaged. The visionary driver knows beforehand, with certainty, the travel time on the random road, while the locally informed driver needs to select a road to acquire information on it. Two intermediary information regimes (fully and globally) are also envisaged. We analyze these four regimes and compare the optimal strategies and the individual benefits with respect to individual risk aversion. A numerical example also illustrates the impact of risk aversion on dynamic optimal strategies.
Year
DOI
Venue
2007
10.1287/trsc.1060.0179
Transportation Science
Keywords
Field
DocType
dynamic optimal strategy,advanced traveler information system,intermediary information regime,road choice,risk-averse driver,individual risk aversion,one-armed bandit problem,risk aversion,random road,information regime,visionary driver,individual benefit,uncertainty,risk taking,expected utility theory
Information system,Certainty,Expected utility hypothesis,Road traffic,Operations research,Risk aversion,Travel time,Mathematics,Utility theory,Operations management,Risk taking
Journal
Volume
Issue
ISSN
41
1
0041-1655
Citations 
PageRank 
References 
7
2.24
1
Authors
3
Name
Order
Citations
PageRank
Jean-Philippe Chancelier1246.66
Michel De Lara2337.71
André De Palma34218.56