DIAGRAMMATIC SIGN STUDY

A SIGNIFICANT REDUCTION IN THE RATES OF UNUSUAL MANEUVERS IN FRONT OF A LEFT-HAND EXIT WAS FOUND AFTER DIAGRAMMATIC SIGNS WERE INSTALLED AT THE INTERCHANGE OF NORTHBOUND I-287 WITH U.S. 22. A MOBILE TELEVISION SURVEILLANCE UNIT WAS USED TO COLLECT THE DATA. THE VOLUMES, AS WELL AS TYPES OF UNUSUAL MANEUVERS, ARE SUMMARIZED IN THE REPORT BY DATE, HOURS AND NUMBERS OF AXLES. STUDIES WERE MADE OF ORIGINAL SIGNS, STANDARDIZED SIGNS, DIAGRAMMATIC SIGNS, AND DIAGRAMMATIC SIGNS WITH LANE LINES. THE USE OF DIAGRAMMATIC SIGNS AT INTERCHANGES WITH LEFT-HAND EXITS SHOWS GOOD POTENTIAL FROM BOTH A SAFETY AND A LOGICAL VIEWPOINT. DIAGRAMMATIC SIGNS WITH LANE LINES WERE THE MOST BENEFICIAL.

• Record URL:
  • http://www.nj.gov/transportation/business/research/reports/FHWA-NJ-1971-002-7765.pdf
• 
• Supplemental Notes:
  • 32 PP
• Corporate Authors:

  New Jersey Department of Transportation

  Bureau of Research, 1035 Parkway Avenue, P.O. Box 600
  Trenton, NJ  United States  08625-0600
• Authors:
  • Roberts, A W
• Publication Date: 1970-8

Subject/Index Terms

• TRT Terms: Automobile drivers; Design; Diagrams; Intersections; Left turns; Signs; Traffic signs
• Old TRIS Terms: Traffic sign design; Traffic sign observance
• Subject Areas: Design; Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00226319
• Record Type: Publication
• Source Agency: Highway Safety Research Institute
• Files: TRIS, STATEDOT
• Created Date: Jun 18 1972 12:00AM