CRITERIA FOR THE LONGITUDINAL PLACEMENT OF WARNING SIGNS

WARNING SIGNS ARE WARRANTED WHERE THE DISTANCE AT WHICH THE STOP SIGN IS VISIBLE IS LESS THAN THE STOPPING SIGHT DISTANCE, CALCULATED ON THE BASIS OF DESIGN SPEED RATHER THAN AVERAGE RUNNING SPEED. THE STOPPING SIGHT DISTANCE IS LENGTHENED BY A PERCEPTION AND DECISION-MAKING INTERVAL THAT DOES NOT NEED TO BE INCLUDED WHERE WARNING SIGNS OCCUR. THUS, ONLY BRAKING DISTANCE NEED SEPARATE THE WARNING SIGN FROM THE STOP INDICATOR ITSELF.

• Supplemental Notes:
  • Vol 40, No 11, PP 54-56, 4 TAB, 4 REF
• Authors:
  • Allington, R W
• Publication Date: 1970-8

Media Info

• Serial:
  • Traffic Engineering, Inst Traffic Engr

Subject/Index Terms

• TRT Terms: Sight distance; Stop signs; Stopping distances; Stopping sight distance; Traffic signs; Visibility; Warning signs
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00226282
• Record Type: Publication
• Files: TRIS
• Created Date: May 29 1972 12:00AM