In semi-autonomous vehicles (SAE level 3) that requires drivers to takeover (TO) the control in critical situations, a system needs to judge if the driver have enough situational awareness (SA) for manual driving. We previously developed a SA estimation system that only used driver’s glance data. For deeper understanding of driver’s SA, the system needs to evaluate the relevancy between driver’s glance and surrounding vehicle and obstacles. In this study, we thus developed a new SA estimation model considering driving-relevant objects and investigated the relationship between parameters. We performed TO experiments in a driving simulator to observe driver’s behavior in different position of surrounding vehicles and TO performance such as the smoothness of steering control. We adopted support vector machine to classify obtained dataset into safe and dangerous TO, and the result showed 83% accuracy in leave-one-out cross validation. We found that unscheduled TO led to maneuver error and glance behavior differed from individuals.


    Access

    Download


    Export, share and cite



    Title :

    Development of a Situational Awareness Estimation Model Considering Traffic Environment for Unscheduled Takeover Situations


    Additional title:

    Int. J. ITS Res.


    Contributors:


    Publication date :

    2021-04-01


    Size :

    15 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    A Driver Situational Awareness Estimation System Based on Standard Glance Model for Unscheduled Takeover Situations

    Hayashi, Hiroaki / Kamezaki, Mitsuhiro / Manawadu, Udara E. et al. | IEEE | 2019


    Situational Awareness in The Future Air Traffic Control Environment

    Garland, D. J. / Stein, E. S. / Blanchard, J. W. et al. | British Library Conference Proceedings | 1992


    Situational Awareness in Air Traffic Control

    Hopkin, V. D. / Center for Applied Human Factors in Aviation | British Library Conference Proceedings | 1994


    Air traffic situational awareness using HF communication

    DEROCHE MICHAEL J | European Patent Office | 2020

    Free access

    Situational awareness

    Salas, Eduardo ;Dietz, Aaron S. | TIBKAT | 2011