WARNING LIGHT STUDY; A STUDY OF THE EFFECT ON DRIVER BEHAVIOR OF OPERATING EMERGENCY AMBER LIGHTS

THE EFFECT OF OPERATING AMBER WARNING LIGHTS ON DRIVER BEHAVIOR WAS DETERMINED, WITH THE MAIN EMPHASIS ON TRAFFIC FLOW. AMBER LIGHTS WERE OPERATED ON THREE TYPES OF VEHICLES; BLACK AND WHITE ENFORCEMENT, TOW SERVICE TRUCK, AND DIVISION OF HIGHWAYS MAINTENANCE PICKUP, FOR THREE LEVELS OF TRAFFIC VOLUME. THE AMBER LIGHT HAD LITTLE EFFECT ON TRAFFIC FLOW DURING THE DAY. THERE WAS SOME SLOWING OF TRAFFIC AT NIGHT ON THE TWO LANE, LIGHT VOLUME ROAD. THE VEHICLE EFFECT VARIED; THE BLACK AND WHITE VEHICLE HAD THE GREATEST EFFECT, THE PICKUP THE LEAST EFFECT. EXPERIMENTAL DESIGN, STATISTICAL METHODOLOGY AND ANALYSIS OF FINDINGS ARE DESCRIBED IN DETAIL. /AUTHOR/

• Supplemental Notes:
  • 75 Pp, Apps
• Corporate Authors:

  Calfornia Highway Patrol

  P.O. Box 942898
  Sacramento, CA  United States  94298-0001
• Authors:
  • Bieber, R A
• Publication Date: 1971-1

Subject/Index Terms

• TRT Terms: Behavior; Days; Drivers; Emergency vehicles; Light; Night; Traffic flow; Warning signs; Warning systems; Yellow
• Uncontrolled Terms: Flashing yellow signals
• Old TRIS Terms: Emergency warning devices
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00223448
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 25 1971 12:00AM