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Do wider longitudinal road markings influence driving speed perception?
Francisco Calvo-Poyo1, Laura Garach1, Juan de Oña1
1TRYSE Research Group, Department of Civil Engineering, University of Granada, Granada, Spain.
Traffic Injury Prevention
|March 17, 2025
Summary
Wider road markings increase the perception of speed on curves, potentially improving road safety. This effect is more pronounced for female drivers, experienced drivers, and during nighttime driving conditions.
Area of Science:
- Traffic Safety Engineering
- Human Factors in Transportation
- Road Design and Perception
Background:
- Excessive speed is a major cause of traffic accidents and regulatory noncompliance.
- Road markings are crucial for driver guidance and road safety.
- Wider markings may enhance speed perception and encourage slower driving, but require further investigation.
Purpose of the Study:
- To investigate if wider longitudinal markings increase speed perception on curves compared to standard markings.
- To evaluate the impact of road marking width on driver behavior and safety.
Main Methods:
- Video recordings of vehicles on 6 curves under standard and wider marking conditions.
- A survey of 2,419 participants assessing perceived speed from video segments.
Main Results:
- Wider markings significantly increased speed perception on curves.
- Factors influencing this perception included participant gender, driving history, experience, viewing order, curve orientation, and lighting conditions (nighttime).
Conclusions:
- Wider longitudinal road markings can enhance speed perception on curves.
- This enhancement has the potential to improve road safety by promoting reduced driving speeds.
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