Related Experiment Videos
Car driver behavior at flashing light railroad grade crossings
1TNO Institute for Perception, Soesterberg, The Netherlands.
Accident; Analysis and Prevention
|June 1, 1990
Summary
Driver behavior at railroad crossings shows good red light compliance, suggesting signal effectiveness. However, unexpected actions and uncertainty with the white signal warrant improvements for enhanced safety.
Area of Science:
- Traffic Safety
- Human Factors Engineering
- Transportation Psychology
Background:
- Railroad grade crossings with automatic flashing warning lights are critical safety points.
- Driver behavior at these crossings influences accident rates.
- Previous research indicates varying compliance levels at different signalized intersections.
Purpose of the Study:
- To analyze car driver behavior at Dutch railroad grade crossings with automatic flashing warning lights.
- To quantify red light compliance and identify potential safety issues.
- To evaluate the effectiveness of both red and white flashing signals.
Main Methods:
- Videotaping over 900 car drivers approaching railroad grade crossings.
- Semiautomatically measuring approach speeds, positions, and time intervals.
- Analyzing head movements and deceleration patterns during signal exposure.
Main Results:
- High red light compliance observed, with no drivers crossing after the red signal onset.
- Driver compliance at railroad crossings was better than at signalized road intersections.
- Some drivers exhibited uncertainty with the white signal and proceeded too soon after a train passed.
Conclusions:
- Faulty red light compliance is not a primary cause of car-train accidents.
- Current warning devices are generally effective but could be improved for clarity and attention.
- Modifications like a yellow phase or a separate signal for second trains may reduce errors and enhance safety.