Human-Centered HMI Design for Level 3 Automated Driving Takeover Process

Most road safety accidents are caused by driver fatigue and distraction. Autonomous driving is recognised as enabling a safer road environment. In order to realise Sustainability Development Goal (SDG), the development of a more efficient HMI system to facilitate the takeover process is necessary. Level 3 automatic vehicles as a research subject, the article investigares the comprehensive human-machine interface (HMI) that promotes driver takeover effiency and safety under fatigue and distraction. This article employs a human-centered design (HCD) approach as its research methodology. The literature review investigates the factors influencing the efficiency of takeovers. Users requirements were uncovered and refined by questionnaires and in-person interviews. As a consequence of the HCD method research, the new HMI was designed as a multi-modes takeover alter system with two phases of cascading warnings. The interaction design for driver and dynamic information between seat, steering, pedal and windscreen. To further reduce the possibility of human error, the steering wheel and pedals also need periodical restrictions. The HMI design need be validated its efficiency in future investigations using driving simulators and on-road testing.