01629546

Component

Many methods have been developed to give transport policy makers better insight into why different choices are made. One such methodology that has been receiving increasing attention is the hybrid choice model, which seeks to allow for a better understanding of the relationship between choices and attitudes or character traits latent to the respondent. Recently there has been debate as to the appropriateness of using such models to conclude that a change in a given attitude will bring a change in choice given the focus on cross-sectional data. To address this, the authors propose a framework to examine the stability of choices and attitudes over time. Making use of a repeated stated preference experiment conducted at two points in time on an identical set of respondents the authors find that, in the context of air security procedures, preferences and latent attitudes are relatively stable over time despite the two different and extreme shocks at the times the survey was conducted. While this is comforting to transport policy makers in some respects, these results lead one to ask that if choices and preferences do not change in extreme situations how changeable are they truly in the context of a nudge agenda by many governments? Additionally, the authors find some evidence that for the most part while latent attitudes are invariant, the role they play in choices differs over waves suggesting potential cognitive dissonance.

This paper was sponsored by TRB committee ADB10 Standing Committee on Traveler Behavior and Values. Alternate title: Stability of Preferences and Attitudes: Hybrid Model of Air Travel Preferences at Two Different Points in Time.

01618707

17-05934

English

16p

2017

Transportation Research Board 96th Annual Meeting

Digital/other

Appendices; Figures; References; Tables

Air travel; Attitudes; Choice models; Passenger screening; Passenger security; Stated preferences; Surveys

Sydney (Australia)

Aviation; Planning and Forecasting; Security and Emergencies

Transportation Research Board Annual Meeting 2017 Paper #17-05934

TRIS, TRB, ATRI

Dec 8 2016 12:23PM