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Navigating with Augmented Reality - How does it affect drivers' mental load?

Kassandra Bauerfeind1, Julia Drüke1, Jens Schneider2

  • 1Volkswagen AG, Group Innovation, HMI Augmentation, Wolfsburg, Germany.

Applied Ergonomics
|March 15, 2021
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This summary is machine-generated.

Augmented Reality (AR) displays reduce mental load for drivers in complex urban navigation tasks. Drivers using AR performed better on cognitive tests, indicating improved focus compared to conventional Head-Up Displays (HUDs).

Keywords:
Ambiguous navigation taskAugmented RealityDriver's mental loadHead-up display

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Area of Science:

  • Human-Computer Interaction
  • Automotive Engineering
  • Cognitive Psychology

Background:

  • Drivers often face challenges with ambiguous navigation, particularly in urban environments.
  • Augmented Reality (AR) technology offers potential for enhanced driver information display.
  • Head-Up Displays (HUDs) are conventional methods for presenting driving information.

Purpose of the Study:

  • To investigate the impact of AR displays versus conventional HUDs on driver mental load.
  • To assess driver performance in ambiguous urban navigation scenarios.
  • To evaluate the influence of AR on cognitive load using a non-driving-related task (NDRT).

Main Methods:

  • A driving simulator study was conducted with 59 participants.
  • Navigation information was presented via a conventional HUD or an AR display.
  • Participants completed an auditory cognitive, spatial NDRT concurrently with navigation.

Main Results:

  • Drivers using the AR display showed improved performance on the NDRT, signifying reduced mental load.
  • Participants using the conventional HUD exhibited compensatory behavior, driving slower by an average of 3 km/h.
  • AR displays effectively relate navigation information to the surrounding environment.

Conclusions:

  • AR displays can significantly reduce mental load in complex driving situations compared to conventional HUDs.
  • AR technology enhances driver performance and potentially safety in ambiguous urban navigation.
  • Further research into AR integration in vehicles is warranted to optimize driver experience and reduce cognitive burden.