DRIVERS AND ROAD SIGNS

THE FUNCTION OF THE ROAD SIGN SYSTEM AS AN INFORMATION CHANNEL FOR CAR DRIVERS WAS INVESTIGATED. THE DATA WERE GATHERED FROM MORE THAN 5,000 CAR DRIVERS STOPPED AFTER PASSING A ROAD SIGN ON A SWEDISH HIGHWAY. THE OVERALL PROBABILITY OF A ROAD SIGN BEING NOTICED ON PASSING IS NOT HIGHER THAN ABOUT 0.5. THE DIFFERENT SIGNS STUDIED FORM A SCALE OF RECORDING PROBABILITY OF PERCEPTION EXTENDING FROM A LOW GROUP WITH A PROBABILITY OF BEING PERCEIVED OF ABOUT 0.25 UP TO A GROUP WITH PROBABILITIES BETWEEN 0.60-0.75. THE RANK ORDER OF THE SIGNS IS CONSISTENT BETWEEN OCCASIONS. THE RESULTS VERIFIED THE OUTCOME OF A PREVIOUS INVESTIGATION BY JOHANSSON AND RUMAR, 1966. THE MAIN CONCLUSION MUST BE THAT THE ROAD SIGN SYSTEM TO A HIGH DEGREE DOES NOT ACHIEVE ITS PURPOSE. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00140139
• Supplemental Notes:
  • Vol 13, No 6, PP 749-759
• Authors:
  • Johansson, G
  • Backlund, F
• Publication Date: 1970-11

Media Info

• Serial:
  • Ergonomics
  • Publisher: Taylor & Francis
  • ISSN: 0014-0139
  • EISSN: 1366-5847
  • Serial URL: http://www.tandfonline.com/loi/terg20

Subject/Index Terms

• TRT Terms: Drivers; Reaction time; Traffic signs
• Uncontrolled Terms: Driver reaction
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 00225953
• Record Type: Publication
• Files: TRIS
• Created Date: May 16 1971 12:00AM