Information impact on quality of travel choices: analysis of data from a multimodal travel simulator

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Abstract

This paper investigates the impact of travel information on the quality of travel choices. It distinguishes itself from earlier studies on this topic by empirically investigating the impact of a variety of travel information types on the quality of observed multimodal travel choices. Choice quality is measured by comparing observed choices made under conditions of incomplete knowledge with predicted choice probabilities under complete knowledge. Furthermore, the potential impact of travel information is considered along multiple attribute-dimensions of alternatives, rather than in terms of travel time reductions only. Data is obtained from a choice experiment in a multimodal travel simulator in combination with a web-based mode-choice experiment. A Structural Equation Model is estimated to test a series of hypothesized direct and indirect relations between a traveler’s knowledge levels, information acquisition behavior and the resulting travel-choice quality. The estimation results support the hypothesized relations, which provides evidence of validity and applicability of the developed measure of travel-choice quality. Furthermore, the relations established provide some careful support for the often expected impact of information on the quality of travel choices. The effects are largest for information services that generate previously unknown alternatives, and lowest for services that only provide warnings in case of high travel times.
Original languageEnglish
Title of host publicationProceedings of the 86th Transportation Research Board Annual Meeting 2007 (TRB 86) 21-25 January 2007, Washington D.C., USA : Compendium of papers CD-ROM
EditorsA.N.R. Silva, da, L.C.L. Souza, de
Place of PublicationWashington D.C., USA
PublisherCUPUM
Pages07-0148-
Publication statusPublished - 2007
Event86th Transportation Research Board Annual Meeting - Washington, United States
Duration: 21 Jan 200725 Jan 2007

Conference

Conference86th Transportation Research Board Annual Meeting
CountryUnited States
CityWashington
Period21/01/0725/01/07

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