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Vehicle kinematics in turns and the role of cornering lamps in driver vision
SAE Recommended Practice J852 and ECE Regulations 119 and 48 for cornering lamps were compared. Photometric points described in each specification were then compared to naturalistic lowspeed turn trajectories produced by 87 drivers. Future locations of a vehicle engaged in a turn were calculated...
Differences in geometry of pedestrian crashes in daylight and darkness
Introduction: Previous studies have shown that increased risk in darkness is particularly great for pedestrian crashes, suggesting that attempts to improve headlighting should focus on factors that likely influence those crashes. The current analysis was designed to provide information about how...
Heavy trucks, conspicuity treatment, and the decline of collision risk in darkness
Introduction: The influence of amendments to Federal Motor Vehicle Safety Standard (FMVSS) 108, requiring conspicuity treatments on heavy tractors and trailers, was determined in analyses of the odds of fatal collisions in darkness. Method: Comparisons were made between crashes in which conspicuity...
The influence of rear turn-signal characteristics on crash risk
Introduction: The relationship between the relative risk of a rear-end collision during a turn, merge, or lane change maneuver and the characteristics of the rear turn-signal configuration was examined using crash data from seven states in the United States. Method: Rear turn-signal characteristics...