DRIVERS' BRAKE REACTION TIMES

THE DISTRIBUTION OF BRAKE REACTION TIMES WHICH CAN BE EXPECTED FROM DRIVERS WHO HAVE TO BRAKE SUDDENLY AND COMPLETELY UNEXPECTEDLY IN TRAFFIC SITUATIONS WAS DETERMINED. BRAKE REACTION TIME WAS MEASURED ON A LARGE GROUP OF DRIVERS (321) IN AN ANTICIPATED SITUATION ON THE ROAD (BRAKE REACTION TIME 1). A SMALL GROUP OF DRIVERS (5) WAS REPEATEDLY TESTED IN THE SAME WAY (BRAKE REACTION TIME 2) AND THE SAME SMALL GROUP WAS REPEATEDLY TESTED IN A SURPRISE SITUATION (BRAKE REACTION TIME 3). THE RATIO OF BRAKE REACTION TIME 3 TO BRAKE REACTION TIME 2 WAS USED AS A CORRECTION FACTOR AND APPLIED TO BRAKE REACTION ON TIME 1. THE CORRECTED MEDIAN OF THE RESULTING DISTRIBUTION WAS 0.9 SEC.; 25% OF THE GROUP WAS ESTIMATED TO HAVE A BRAKE REACTION TIME LONGER THAN 1.2 SEC. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1329271
• Supplemental Notes:
  • Vol 13, No 1, PP 23-27
• Authors:
  • Johansson, G
  • Rumar, K
• Publication Date: 1971-2

Media Info

• Serial:
  • Human Factors
  • Publisher: Sage Publications, Incorporated
  • ISSN: 0018-7208
  • EISSN: 1547-8181
  • Serial URL: http://hfs.sagepub.com/

Subject/Index Terms

• TRT Terms: Brakes; Drivers; Reaction time
• Uncontrolled Terms: Driver reaction
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00223447
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 25 1971 12:00AM