Heterogeneous Influence of Driving Propensity on Driving Intention on Expressways under the Provision of Traffic Warning Information

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    • KUSUHASHI Yasuhiro
    • Project Coordination Department, Chugoku Regional Branch, West Nippon Expressway Company Limited
    • ZHANG Junyi
    • Graduate School for International Development and Cooperation, Hiroshima University
    • FUJIWARA Akimasa
    • Graduate School for International Development and Cooperation, Hiroshima University


This study attempts to evaluate the heterogeneous influence of driving propensity on driving intention on expressways under the provision of ITS-based and/or traditional traffic warning measures. An Internet-based questionnaire survey was conducted to collect relevant data including drivers' actual driving propensity and their stated driving behavior (i.e., driving intention) under different combinations of information provisions and existing safety facilities. Heterogeneity in the driving intention is taken into account by developing a latent class ordered-response probit model. As a result, it is confirmed that the warning information with voice and image through ITS technology (car-navigation) is a more effective measure than existing safety facilities to improve their awareness for safe driving; it is statistically confirmed that the developed model shows different driving intention by heterogeneities of drivers' driving propensities when same traffic warning information is provided on expressway.


  • Asian Transport Studies

    Asian Transport Studies 2(2), 161-177, 2012

    Eastern Asia Society for Transportation Studies


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