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Ecological Interface Design and Head-Up Displays: The Contact-Analog Visualization Tradeoff.

Frederik Schewe¹, Mark Vollrath¹

¹26527 Technische Universität Braunschweig, Germany.

|April 20, 2021

Summary

The study compared 2D and 3D ecological interfaces in head-up displays (HUDs). While 3D visualizations were perceived as more appealing, 2D interfaces offered more precise control for artificial boundaries like speed limits.

Keywords:

cognitive load driving behavior ecological interface head-up display speed control

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Area of Science:

Human-Computer Interaction
Ecological Interface Design
Automotive Human Factors

Background:

Head-up displays (HUDs) integrate visualizations with the real environment.
Ecological interface design can leverage real-world boundaries for performance guidance.
Potential for visual illusions and environmental interference with HUDs exists.

Purpose of the Study:

To compare the subjective and objective usefulness of 2D versus 3D ecological interface visualizations.
To evaluate the impact of contact-analog (3D) and 2D visualizations on driving performance and user perception.

Main Methods:

A driving simulator experiment was conducted with 49 participants.
Participants tested the same ecological interface in both 2D and 3D configurations on a HUD.
Subjective ratings and objective driving performance metrics were collected.

Main Results:

3D visualizations were rated as more demanding, disturbing, innovative, and appealing.
Driving performance showed a 6% decrease in speed control accuracy with 3D.
Lane stability significantly improved by 20% with the 3D representation.

Conclusions:

Contact-analog (3D) visualization is recommended for environmental boundaries.
2D visualization is preferred for artificial boundaries (e.g., speed limits) due to reduced optical illusions and better control.
Findings guide human factors engineers in optimizing contact-analog visualizations.