00222527

Component

http://onlinepubs.trb.org...s/hrr/1966/122/122-004.pdf

DRIVERS WERE OBSERVED AND QUESTIONED AND THEIR RESPONSES WERE MEASURED AS THEY UNEXPECTEDLY CAME UPON DO NOT ENTER SIGNS WHILE DRIVING IN THE DRIVING SIMULATION LABORATORY. RED AND WHITE SIGNS ELICITED AN EARLIER RESPONSE THAN DID THE BLACK-AND-WHITE SIGNS, AND MORE DRIVERS RESPONDED CORRECTLY TO THE RED-AND-WHITE SIGNS. THIS FINDING WAS CROSS-VALIDATED BY TESTS AT ANOTHER LOCATION. A SECOND SET OF SIGNS WAS TESTED AT THE SECOND LOCATION. RESULTS AT THIS WRITING ARE NOT CONCLUSIVE REGARDING THE RELATIVE NOTICEABILITY OF THE FOUR DIFFERENT MESSAGES. PRELIMINARY EVALUATION WAS MADE OF THE APPEARANCE OF LANELINE ARROWHEADS PAINTED ON EVERY FOURTH DASHED LINE OF AN OTHERWISE STANDARD LANE MARKING. THE ARROWHEADS WERE ORIENTED IN THE DIRECTION OF NORMAL FLOW, SO THAT A WRONG-WAY DRIVER WOULD ENCOUNTER A SERIES OF ARROWS WITH THEIR POINTS FACING HIM. THIS PARTICULAR TYPE OF LANE-LINE ARROW MARKING WAS JUDGED NOT SUFFICIENTLY NOTICEABLE TO ALERT A WRONG-WAY DRIVER. OBSERVATIONS WERE MADE OF SEVERAL STYLES OF PAVEMENT MARKING ARROWS. WHEN APPROACHING THEM FROM THE POINTED END, AS A WRONG-WAY DRIVER WOULD IN ATTEMPTING TO ENTER AN OFF-RAMP, THE STANDARD ARROWS /WHICH ORIGINALLY WERE DEVELOPED AS DIRECTIONAL GUIDES/ ARE NOT AS DETECTABLE AS TWO DIFFERENT STYLES. /AUTHOR/

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01410077

pp 35-49

1966

Highway Research Record

Print

Figures (3) ; References (4) ; Tables (14)

Arrows (Signals); Color; Drivers; Driving; Driving simulators; Freeways; Location; Off ramps; Prevention; Reaction time; Road markings; Safety; Studies; Traffic lanes; Traffic signs; Warning signs; Wrong way driving

Driver reaction

Highways; Safety and Human Factors; Security and Emergencies

TRIS, TRB

Nov 18 1994 12:00AM

• ABILITY OF DRIVERS TO MAKE CRITICAL PASSING JUDGMENTS
• AN AUTOMATIC SYSTEM FOR LONGITUDINAL CONTROL OF INDIVIDUAL VEHICLES
• ATTITUDES OF DRIVERS TOWARD ALTERNATIVE HIGHWAYS AND THEIR RELATION TO ROUTE CHOICE
• Changes in Driver Performance With Time in Driving
• EFFECTS OF FATIGUE ON PERFORMANCE IN A DRIVING DEVICE
• EXPERIMENTAL ISOLATION OF THE DRIVERS VISUAL INPUT
• VELOCITY THRESHOLDS IN CAR-FOLLOWING AT NIGHT
• VISUAL ACUITY AND DRIVING RECORD