EVALUATION OF MINOR IMPROVEMENTS

IN PARTS 1 AND 2 AN INVESTIGATION WAS CONDUCTED INTO THE CURRENT EFFECTIVENESS OF CENTER SUSPENDED AND ADVANCE WARNING FLASHING BEACONS IN REDUCING ACCIDENTS, AND SAFETY LIGHTING INSTALLATIONS IN REDUCING NIGHT ACCIDENTS. A BEFORE AND AFTER STUDY METHOD WAS USED TO EVALUATE 45 FLASHING BEACON AND 41 SAFETY LIGHTING PROJECTS. THE CURRENT WARRANTS FOR INTERSECTION FLASHING BEACONS AND FOR SAFETY LIGHTING WERE COMPARED WITH OTHER POSSIBLE WARRANTS TO DETERMINE IF MORE EFFECTIVE CRITERIA COULD BE ESTABLISHED. TWO METHODS OF PREDICTING FUTURE ACCIDENTS ARE REVIEWED. PARTS 3 AND 4 EVALUATED THE CURRENT EFFECTIVENESS OF VARIOUS DELINEATION DEVICES AND OF PROTECTIVE GUARDRAILS IN REDUCING REPORTED ACCIDENTS. AGAIN A BEFORE AND AFTER STUDY METHOD WAS USED TO STUDY 32 DELINEATION AND 14 GUARDRAIL LOCATIONS. THE HOPE WAS TO DEMONSTRATE MUCH MORE IMPROVEMENT THAN APPEARS TO HAVE BEEN ACCOMPLISHED. PRESENTLY, NEW METHODS OF DELINEATION ARE BEING DEVELOPED AND EVALUATED. CONSIDERATION SHOULD BE GIVEN TO ADDITIONAL RESEARCH AT PROTECTIVE GUARDRAIL INSTALLATIONS. /AUTHOR/

• Corporate Authors:

  California Division Highways

  /Traffic Department
  ,   United States 
• Publication Date: 1967-7

Subject/Index Terms

• TRT Terms: Beacons; Before and after studies; Flashing beacons; Guardrails; Highway delineators; Highway safety; Improvements; Lighting equipment; Night; Prevention; Safety; Street lighting; Warning systems
• Old TRIS Terms: Delineators (Traffic)
• Subject Areas: Highways; Safety and Human Factors; Security and Emergencies;

Filing Info

• Accession Number: 00219964
• Record Type: Publication
• Report/Paper Numbers: 149 pp
• Files: TRIS, STATEDOT
• Created Date: Apr 2 1994 12:00AM