Yu, J., Lim, Y., and Chung, D., "A Study Regarding Comparisons of Driver Performance According to Touch Display Locations (X, Y, Z axes)," SAE Technical Paper 2013-01-0002, 2013, doi:10.4271/2013-01-0002.
There have been many current studies regarding touch display locations. However, these studies revolve specifically around the Y and Z axes which disregard certain elements of an touch display in terms of usability factors.The compact car has limited space for the layouts of touch display locations. In addition, the users of compact cars have smaller body types which could be problematic for the usage frequency of touch displays without proper consideration of its location.This study focused on the touch display locations that are placed in compact cars. The conditions of this experiment focused on women drivers who drove working vehicles during actual traffic and driving scenarios. The 3-dimensional axes(X, Y, Z) determines the location of the touch display and were analyzed throughout the experiment.The experiment is divided into two experiments. During the first experiment discomfort score of menu touch task while driving are measured according to 24 location alternatives. The results showed that X and Z axes are more significant for the safety and subjective assessment when compared to the Y axis. From the results of first experiment, locations that are infeasible for package design are exempt in the second experiment. Therefore, nine alternative locations of touch display were selected based on the X and Z axes. A total of fifteen participants took part in the second experiment where there was a measurement of task completion time and discomfort score. In conclusion, the results showed that the best position was when the X axis was 50mm and the Z axis was ranging from 410mm to 440mm from the center fascia peak point.