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The utility of journeys, from Dupuit's constant-time bridge crossing hops to commutes of chosen duration and reliability in the Paris region

Marc Gaudry

Transport Policy, 2018, vol. 70, issue C, 53-68

Abstract: We estimate demand functions for work trip duration, assumed to combine the expected value of endured transport service and a safety margin constructed by the commuter. Duration is explained by transport service itself, along with other variables, and the issue of its composition is formulated as that of the elasticity of duration with respect to that service. The existence of the safety margin is established by the failure of a unit elasticity test and its role as offset to the uncertainty of transport service by findings of elasticity estimates smaller than unity. Estimation is made by Box-Cox models and their fitted values formally calculated for the first three moments of outcomes.

Keywords: Travel time; Safety margin; Time profile of transport demand; Moment dependent utility (MDU); Jules Dupuit; Maurice Allais (search for similar items in EconPapers)
Date: 2018
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