Public transport reliability and commuter strategy

Abstract

This is the accepted version of a paper published as: Monchambert, G., & De Palma, A. (2014). Public transport reliability and commuter strategy. Journal of Urban Economics, 81, 14-29.This paper has been peer-reviewed but does not include the final publisher proof-corrections or journal pagination. Access to the published version may require subscription.N.B. When citing this work, cite the original published paper ; International audience ; We consider the modeling of a bi-modal competitive network involving a public transport mode, which may be unreliable, and an alternative mode. Commuters select a transport mode and their arrival time at the station when they use public transport. The public transport reliability set by the public transport firm at the competitive equilibrium increases with the alternative mode fare, via a demand effect. This is reminiscent of the Mohring effect. The study of the optimal service quality shows that often, public transport reliability and thereby patronage are lower at equilibrium compared to first-best social optimum. The paper provides some public policy insights.