P8 - An Investigation into Glace-free Operation of a Touchscreen With and Without Haptic Support in the Driving Simulator

In an empirical study conducted with 25 participants, touch interaction with and without haptic feedback on an 8-inch touchscreen with glance-free operation have been compared with each other. For this purpose, a main menu consisting of four control elements, each with a size of 86 mm x 51 mm, was selected from the touchscreen's existing menu structure. The comparison of with and without haptic support shows that the error rate without haptic feedback is significantly higher than with haptic feedback. This effect is shown in the driving task performed in the driving simulator. Three causes for the significantly higher error rate in conventional operation have been discovered. Furthermore, it was also discovered that the subjective operational stress with haptic support is significantly lower than without haptic support. There were no significant difference in driving lane deviation and efficiency.