Abstract
Recently, various kinds of interaction types have been widely utilized in numerous application devices. Especially in automobiles, rotary controllers and touch screens have been most prevalently adopted in controlling many functions of invehicle information systems (IVIS) while driving. In-vehicle devices should be much more carefully considered due to the dual task properties. Though many studies on the usability across interaction types of controllers have been conducted, the researches on comparison of differences in driver’s distraction between rotary controllers and touch screens for controlling the in-vehicle devices has been absent yet. The aim of this study is to analyze the driver's distraction across the two interaction types under driving situations. In this end, a user experiment was conducted in a driving simulator environment, to examine driver' distraction. The primary driving performance, secondary task performance, and visual distraction were measureed and evaluated. Based on the results, the distraction level of each interaction type was scrutinized. This study could be helpful in comprehension of which interaction types are more suitable in terms of safety and usefulness for invehicle devices under the driving situation.
