DISABILITY GLARE EFFECTS FROM VEHICLE HEADLIGHTS AND FIXED OVERHEAD STREET LIGHTING

THE CAPABILITY OF A MOTORIST TO DETECT TYPICAL HIGHWAY VISION TARGETS AT NIGHT IN THE LIGHT FROM VARIED COMBINATIONS OF FIXED, OVERHEAD LUMINAIRES AND SINGLE AND OPPOSING VEHICLE HEADLIGHTS WAS STUDIED IN A SIMULATED TWO- LANE HIGHWAY ENVIRONMENT. FIXED LIGHTING, IN THE RANGE OF 0.6 TO 2.0 FOOT-CANDLE AVERAGE HORIZONTAL ILLUMINATION MORE THAN DOUBLED THE TARGET DETECTION DISTANCES ATTAINABLE WITH VEHICLE HEADLIGHTS ALONE, BUT DETECTION DISTANCES WERE REDUCED IN DIRECT RELATION TO THE GLARE INTENSITY OF OPPOSING HEADLIGHTS. /AUTHOR/

• Corporate Authors:

  Southwest Research Institute

  6220 Culebra Road, P.O. Drawer 28510
  San Antonio, TX  United States  78228-0510
• Authors:
  • Cadena, D G
  • Hemion, R H
• Publication Date: 1969-9-30

Subject/Index Terms

• TRT Terms: Glare; Headlamps; Lighting; Luminaires; Night; Simulation; Street lighting; Vehicles
• Uncontrolled Terms: Intensity
• Old TRIS Terms: Overhead lighting
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00220909
• Record Type: Publication
• Report/Paper Numbers: 39 pp
• Files: TRIS
• Created Date: Jun 22 1970 12:00AM