Impact of Smart Phones' Interaction Modality on Driving Performance for Conventional and Autonomous Vehicles
| 项目名称： | Impact of Smart Phones' Interaction Modality on Driving Performance for Conventional and Autonomous Vehicles |
| 摘要： | Distracted driving related to cell phone usage ranks among the top three causes of fatal crashes on the road. Although forty-eight U.S. states currently allow the use of personal devices if operated hands-free and secured in the vehicle, scientific studies have yet to quantify the safety improvement presumed to be introduced by voice-to-text interactions. This study investigates how different modes of drivers' interaction with a smart phone (i.e., manual texting vs. vocal input) affect drivers� distraction and performance in both conventional and semi-autonomous vehicles. The study was executed in a full-car integrated simulator with a sample size of 32 drivers. The study considered two scenarios: (1) conventional manual driving in a suburban environment with intersection stops; and (2) control takeover from an engaged autonomous vehicle that reverted to manual driving at a highway exit. The quality of execution of maneuvers as well as timing and tracking of eye-gaze focus areas were assessed in both scenarios. Results demonstrated that while participants perceived an increased level of safety while using the hands-free interface, response times and drift did not significantly differ from those manually texting. Furthermore, even though participants perceived a greater effort in accomplishing the text reply through the manual interface, none of the measured quantities for driving performance or eye-gaze focus revealed statistical difference between the two interfaces, ultimately calling into question the assumption of greater safety implicit in the laws allowing hands-free devices. |
| 状态： | Completed |
| 资金： | 73816 |
| 资助组织： | Office of the Assistant Secretary for Research and Technology |
| 管理组织： | Office of the Assistant Secretary for Research and Technology |
| 项目负责人： | Stearns, Amy |
| 执行机构： | Mineta Consortium for Transportation Mobility |
| 主要研究人员： | Favaro, Francesca |
| 开始时间： | 20180901 |
| 预计完成日期： | 20200131 |
| 实际结束时间： | 20200131 |
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