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A Vehicle Simulation Study Examining the Effects of System Interface Design Elements on Performance in Different
Xing Tang1,2, Suihuai Yu1, Birsen Donmez2
1Northwestern Polytechnical University, China.
Human Factors
|November 17, 2023
Summary
Vehicle vibration significantly impairs touchscreen performance in cars. Increasing the size of interface elements can improve interaction, making systems safer for drivers on rough roads.
Area of Science:
- Human-Computer Interaction
- Automotive Engineering
- Usability Engineering
Background:
- Touchscreens are common in vehicle information systems.
- Driving on unpaved roads causes significant vibration.
- Vibration negatively impacts touchscreen usability and increases driver workload.
Purpose of the Study:
- To investigate the link between interface design and interaction performance under simulated vehicle vibrations.
- To understand how vibration frequencies below 3 Hz affect user interaction.
- To identify design strategies that can mitigate performance degradation.
Main Methods:
- Simulated vehicle vibrations at 1.5, 2.0, and 2.5 Hz were used.
- Interaction performance was measured by reaction time and accuracy rate.
- A touchscreen computer and E-prime software were utilized for the experiment.
Main Results:
- Vehicle vibration (below 3 Hz) significantly reduced interaction performance with in-vehicle information systems.
- Increased physical size of interface elements (visual stimuli, touch buttons) partially counteracted the negative effects of vibration.
- Specific vibration frequencies demonstrably impacted user performance metrics.
Conclusions:
- Vehicle vibration poses a significant challenge to touchscreen usability in cars.
- Larger interface elements can enhance interaction performance and mitigate vibration-induced errors.
- Findings inform the design of more robust and user-friendly automotive interfaces for challenging road conditions.
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