Issues in reclaiming control from advanced driver assistance systems

Automation is increasingly part of everyday driving as systems such as adaptive cruise control (ACC) or collision warning systems become the norm. These systems are not perfect, resulting in the driver having to stay vigilant for any faults or warnings even with insufficient feedback, and be prepared to reclaim control from an automated driving situation to normal driving. A questionnaire was sent out to ACC users, with the main focus to uncover situations in which they reclaim control from the ACC. Results indicate that situations where drivers reclaim control include some not mentioned in the manual. Thirty-one respondents reported mode errors, and one was first not aware the system was an adaptive cruise control. Present ways of learning how to use ACC may not be enough. Suggestions of future research focuses on whose responsibility it is to make the driver aware of system operational range and functionality.