How manoeuvre information via auditory (spatial and beep) and visual UI can enhance trust and acceptance in automated driving

Kim, S.; van Egmond, R.; Happee, R.

doi:10.1016/j.trf.2023.11.007

How manoeuvre information via auditory (spatial and beep) and visual UI can enhance trust and acceptance in automated driving

Title

How manoeuvre information via auditory (spatial and beep) and visual UI can enhance trust and acceptance in automated driving

Author

Kim, S. (TU Delft Human Information Communication Design)
van Egmond, R. (TU Delft Human Information Communication Design)
Happee, R. (TU Delft Intelligent Vehicles)

Date

2024

Abstract

In conditionally automated driving (SAE level 3), drivers may take their eyes off the road but will still need to be ready to take control and will, therefore, benefit from information on automation. This study aims to investigate the effectiveness of automation manoeuvre information provided through spatial sound, traditional notification sound (beep), and a visual interface. Spatial sounds were designed differentiating four distinct driving manoeuvres: overtaking a leading car, slowing down, turning right, and passing a roundabout. The notification sound consisted of one beep being identical for all manoeuvres. The visual interface showed the automation mode with an image and manoeuvre information with text and images. The impact of these interfaces on trust, workload, acceptance, situation awareness, and sense of control was evaluated with questionnaires and visual attention was evaluated with eye tracking while participants engaged in a visual-motor secondary task in a driving simulator. The results indicate that, with all interfaces tested, manoeuvre information enhances trust, acceptance, situation awareness, and sense of control, without significantly affecting the overall workload. These benefits were more profound, adding auditory information and differed marginally between the traditional notification and the spatial sound, as the effectiveness of the different auditory interface types varied depending on the specific manoeuvre. Findings highlight the importance of designing user interfaces for automation manoeuvre information using auditory cues to improve the user experience in automated driving.

Subject

Automated vehicles
Human-Machine Interaction
Trust
Acceptance
Sound design

To reference this document use:

http://resolver.tudelft.nl/uuid:a79712b3-9716-42bb-b01a-c657a7b34369

DOI

https://doi.org/10.1016/j.trf.2023.11.007

ISSN

1369-8478

Source

Transportation Research. Part F: Traffic Psychology and Behaviour, 100, 22-36

Part of collection

Institutional Repository