論文アブストラクト：Low levels of engagement while driving can pose road safety risks, e.g., inattention during low traffic or routine trips. Interactive technologies that increase task engagement could therefore offer safety benefits, e.g., through performance feedback, increased challenge, and incentives. As a means to build upon these notions, we chose to explore gamification of the driving task. The research aim was to study how to design gamified applications that make safe driving more engaging. We present six design lenses which bring into focus considerations most relevant to creating engaging car applications. A user study enhanced our understanding of design requirements and revealed user personas to support the development of such applications. These lenses and personas informed two prototypes, which we evaluated in driving simulator studies. Our results indicate that the gamified conditions increased driver engagement and reduced driving speeds. As such, our work contributes towards the design of engaging applications that are both appropriate to the safety-critical driving context and compelling to users.