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Changes in Drivers' Visual Performance during the Collision Avoidance Process as a Function of Different Field of
Xuedong Yan1, Xinran Zhang1, Yuting Zhang1
1MOE Key Laboratory for Urban Transportation Complex System Theory and Technology, School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, PR China.
Plos One
|October 8, 2016
Summary
Increasing the intersection field of view (IFOV) improves driver visual searching and collision avoidance. Wider IFOVs lead to better hazard identification and reduced crash risk at intersections.
Area of Science:
- Traffic Safety
- Human Factors
- Driver Behavior
Background:
- The intersection field of view (IFOV) is critical for drivers to perceive visual information.
- Enhanced IFOV is linked to improved collision avoidance, but its effect on driver visual behavior is unclear.
Purpose of the Study:
- To investigate how different IFOVs influence drivers' eye movements and visual attention during intersection collision avoidance.
- To explore the relationship between visual searching patterns and traffic safety outcomes.
Main Methods:
- A driving simulation experiment was conducted using an eye-tracking system.
- Participants' visual performance was analyzed under varying IFOV conditions during simulated collision avoidance scenarios.
Main Results:
- IFOV significantly affected drivers' ability to identify hazards through visual searching.
- Increased IFOVs led to longer gaze durations (GD) and more gazes (NG) in surrounding areas.
- Drivers exhibited enhanced visual attention to critical information, improving collision avoidance and reducing crash risk. Female drivers showed better performance than males.
Conclusions:
- Expanding IFOV enhances drivers' visual searching and attention, leading to better collision avoidance.
- The findings support increasing intersection sight distance standards to improve overall traffic safety.
- Driver visual performance is a key factor in mitigating intersection-related crashes.
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