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

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.