Display of Short Text Messages on Automotive HUDs: Effects of Driving Workloadand Message Location

摘要

This report describes the second in a series of studies to identify bestlocations for presenting various types of information on a simulated head-up display (HUD). In the current study 16 participants drove a simulator on roads with curves of several different radii while responding to messages appearing at 1 of 8 locations on a HUD. Two types of information were presented on the HUD. In the reading condition, participants indicated the gender (male, female) of a first name shown on the HUD. In the detection condition, participants responded as soon as a name (scrambled) appeared. Response time to messages increased with the horizontal eccentricity of the HUD location. The center positions (straight ahead) had mean response times of 110 ms, whereas the outer positions (10 degrees to either side) had mean response times of 1250 ms. In contrast to reading time, detection time was not significantly affect by where the message appeared. Driving performance was only degraded when the HUD appeared at the center position.