Highlights The out-of-the-loop status of a driver impacts safe automated driving practice. Cooperative HMI can improve driver–system interaction in automated vehicles. Four cooperative HMI designs were proposed and examined in a driving simulator experiment with human subjects. Although more cooperative HMI designs were accepted to a lesser extent, they improved driver–system interaction and performance.

    Abstract This study analyzes the impact of cooperative human–machine interface designs on drivers’ trust in and interaction with automated driving systems (ADSs) during lane changes on highways. While drivers’ inappropriate trust in ADSs can affect their behavior toward the system, capability to detect inadequate system performance, and perception of surrounding traffic disturbances, their engagement in the automated process can improve their comprehension of the system and traffic conditions, which is necessary for the safe practice of automated driving. Forty drivers practiced conditional driving automation in a driving simulator and encountered traffic congestion on the main lane of a two-lane highway. Four ADS designs were proposed to bypass the congestion. ADS-1 detects the congestion and synchronizes the speed accordingly. ADS-2 requests the driver to resume manual control and overtake the congestion. ADS-3 requests the driver to push a button to let the system overtakes the congestion automatically. ADS-4 overtakes the congestion automatically after informing the driver, while the driver can cancel it by pushing a button within 6 s. In all these conditions, driver intervention was optional. Although the drivers preferred and trusted ADS-1 and ADS-2 more than ADS-3 and ADS-4, the results indicate significant improvements in the driving performance and system usage under ADS-3 and ADS-4. Driving with ADS-3 improved drivers’ engagement and reduced the requirement for control transfer compared with other systems. However, the time headway between the subject and adjacent vehicles indicated that lane changes were more critical under ADS-3 and ADS-4 than ADS-1 and ADS-2. Such deficiency of alignment between driver perception and safe behaviors has implications for the design of future studies and systems that need to balance satisfaction and safety. These observations are likely to improve driver interaction with automated vehicles.


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    Titel :

    Design and evaluation of cooperative human–machine interface for changing lanes in conditional driving automation


    Beteiligte:
    Muslim, Husam (Autor:in) / Kiu Leung, Cho (Autor:in) / Itoh, Makoto (Autor:in)


    Erscheinungsdatum :

    2022-05-20




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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