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Related Experiment Video

Updated: Jun 10, 2025

Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects
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Study on the Driver Visual Workload in High-Density Interchange-Merging Areas Based on a Field Driving Test.

Yue Zhang1, Pei Jiang2, Siqi Wang3

  • 1College of Traffic & Transportation, Chongqing Jiaotong University, Chongqing 400074, China.

Sensors (Basel, Switzerland)
|October 16, 2024
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Summary

Drivers

Keywords:
driving behavioreye movementhigh-density interchangeroad engineeringtraffic safetyvisual workload

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Area of Science:

  • Human Factors and Ergonomics
  • Transportation Engineering
  • Traffic Safety

Background:

  • High-density interchange-merging areas present complex visual challenges for drivers.
  • Understanding drivers' visual workload is crucial for enhancing road safety.

Purpose of the Study:

  • To develop and validate a visual workload model for drivers in high-density interchange-merging zones.
  • To identify key drivers of visual workload in these environments.

Main Methods:

  • A real-vehicle driving test was conducted with 47 participants across five interchanges.
  • The Criteria Importance Through Intercriteria Correlation (CRITIC) method was used for objective weighting.
  • Six visual parameters were selected to build a comprehensive evaluation model.

Main Results:

  • Average scanning frequency and average pupil area change rate were most strongly correlated with visual workload.
  • Average duration of a single gaze had the lowest weight in the assessment system.
  • Visual workload varied significantly based on the interchange-merging area environment.

Conclusions:

  • The developed model effectively evaluates drivers' visual workload in complex merging areas.
  • Recommendations are proposed to mitigate driver visual workload and improve road safety.
  • Findings highlight the importance of specific visual parameters in workload assessment.