Despite the huge progress toward fully autonomous vehicles, current models are limited to Level 3 autonomy due to technological constraints, making driver readiness necessary for manual intervention. Head-up displays (HUDs) enhanced with augmented reality (AR) technologies are being developed to improve safety and convenience by projecting essential information onto windshields, thereby minimizing driver distraction. This study addresses the anxiety linked to the current level of autonomous driving, which requires drivers to remain vigilant, and emphasizes the crucial role of AR-HUDs in bridging the gap between autonomous and manual driving, particularly in enhancing safety and fostering driver trust. A conjoint analysis conducted with 500 drivers in South Korea was used to understand AR-HUD user preferences, focusing on safety and trust-enhancing features. The findings reveal that users prioritize functions such as obstacle recognition, emergency services, and essential driving and assistance information, indicating a willingness to invest more in these features. This suggests that users are in a transitional phase, still harboring some distrust toward autonomous vehicles, and valuing the HUD features that alleviate these concerns. This study discusses the relative importance of various HUD features in autonomous vehicles, with the aim of contributing to the development of more user-aligned AR-HUD systems.

中文翻译：

---

安全仍然很重要：通过联合分析揭示增强现实平视显示器在自动驾驶汽车中的价值主张


尽管全自动驾驶汽车取得了巨大进步，但由于技术限制，目前的车型仅限于 3 级自动驾驶，这使得驾驶员必须准备好进行人工干预。正在开发采用增强现实 （AR） 技术增强的平视显示器 （HUD），通过将重要信息投射到挡风玻璃上来提高安全性和便利性，从而最大限度地减少对驾驶员的分心。本研究解决了与当前自动驾驶水平相关的焦虑，这需要驾驶员保持警惕，并强调了 AR-HUD 在弥合自动驾驶和手动驾驶之间差距方面的关键作用，特别是在提高安全性和培养驾驶员信任方面。对韩国 500 名驾驶员进行的联合分析用于了解 AR-HUD 用户偏好，重点是安全性和信任增强功能。研究结果表明，用户优先考虑障碍物识别、紧急服务以及基本驾驶和辅助信息等功能，这表明他们愿意在这些功能上投入更多资金。这表明用户正处于过渡阶段，仍然对自动驾驶汽车抱有一定的不信任，并重视缓解这些担忧的 HUD 功能。本研究讨论了各种 HUD 功能在自动驾驶汽车中的相对重要性，旨在为开发更多用户对齐的 AR-HUD 系统做出贡献。