Table 2 Definition of Variable Operability and Reference Scales.
Construct | Items | Source |
|---|---|---|
User scale (US) | User acceptance of autonomous driving systems is positioned as the mass acceptance of two different types of autonomous driving systems. This includes many people using it, friends around it, and so on | |
Perceptual significance (PS) | The importance of the user to the autonomous driving system is positioned as the perceived importance of the user to the two different autonomous driving systems. These include the importance of use, the relevance and indispensability of life | |
Experience regret (ER) | The user’s bad experience of the automatic driving system is positioned as the user’s bad experience of the two different automatic driving systems. These include experience regret, use regret, and refusal to use | |
User driving habits (UDH) | The user’s dependence on the use of automatic driving system is positioned as the user’s driving habit in the use of two different driving systems. These include approval systems, common use and first choice | |
Economic efficiency (EE) | User perceptions of economic savings from autonomous driving systems are positioned as savings for users from two different types of autonomous driving systems. These include saving car costs and improving energy efficiency | |
Technical stability (TS) | Users’ views on the technical reliability of autonomous driving systems are positioned as the technical reliability provided to users by two different types of autonomous driving systems. This includes the stability and protection of system technology | |
Security capability (SC) | Users’ views on the safety capabilities of autonomous driving systems are positioned as two different types of autonomous driving systems providing safety services to users. These include protection of driving safety, prediction of driving risks and emergency judgment and treatment | |
After-sales service (ASS) | The user’s view of the after-sales service ability of the automatic driving system is positioned as the impact of the after-sales service ability provided by the two different types of automatic driving system on the user’s use. These include the durability of system maintenance, the trust of maintenance assurance and personalized assurance service | |
Ethical factors (EF) | Users’ views on the ethical aspects of autonomous driving systems are positioned as the ethical and moral services provided to users by two different types of autonomous driving systems. Among them, humanized treatment of special circumstances, in line with social ethics, and humane treatment of problems | |
Social factor (SF) | Users’ views on the social factors of autonomous driving systems are positioned as the social factors that two different types of autonomous driving systems bring to users. Among them, the influence of social environment and surrounding people | |
Continuous use intention (CUI) | The user’s view of the continuous use intention of the autonomous driving system is positioned as the continuous use brought by the two different types of autonomous driving system to the user. These include that the user has been using such autonomous driving systems, that the user will use such autonomous driving systems in the future, and recommend others to use them |
