Analysis of nighttime visibility of in-service pavement markings
Assessment of background complexity of overhead guide signs
Behavior of left-turning drivers during permissive interval of protected-permissive operation
Countdown-only pedestrian change interval displays
Evaluation of impact of modern headlamp technology on design criteria for sag vertical curves
Fuzzy logic for improved dilemma zone identification
Possible expectancy violations on frontage and conventional roads at interchanges
Safety effectiveness of "vehicle entering when flashing" signs
Severity of injuries to motor vehicle drivers at highway-rail grade crossings in the United States