RELATIONSHIP OF TIME MARGIN TO DRIVER STEERING AVOIDANCE FOR SUDDENLY APPEARING OBSTACLE

The purpose of this study was to investigate the temporal limitations of the driver's steering avoidance of obstacles which were stationary but appeared suddenly ahead of the vehicle, with appearance timings directly controlled in a driving simulator. Under conditions where the event was expected, all 25 drivers completed obstacle avoidance successfully when the time margins were longer than 3.0 seconds, though no driver was able to avoid the obstacle in cases where the time margin was 1.2 seconds or shorter. Under conditions where the event was unexpected, around half of the drivers failed to avoid the obstacle where the level of visible distance and the driving speed had allowed all drivers to avoid the expected obstacle. From these findings, it was concluded that a time margin longer than 3.0 seconds would be effective for ensuring successful steering avoidance if the driver was anticipating the potential appearance of any obstacle. For the covering abstract, see IRRD 490001.

• Corporate Authors:

  ERTICO

  326 Avenue Louis
  Brussels,   Belgium  B-1050

  ITS America

  1100 17th Street, NW, 12th Floor
  Washington, DC  United States  20036

  VERTIS

  TORANOMOM 34 MORI BUILDING 1-25-5
  TORANOMON, MINATOKU, TOKYO 105  Japan 
• Authors:
  • UNO, H
  • Hiramatsu, K
• Conference:
  • MOBILITY FOR EVERYONE. 4TH WORLD CONGRESS ON INTELLIGENT TRANSPORT SYSTEMS, 21-24 OCTOBER 1997, BERLIN. (PAPER NO. 3070)
• Publication Date: 1997

Language

• English

Media Info

• Features: References;
• Pagination: 8 p.

Subject/Index Terms

• TRT Terms: Braking; Conferences; Drivers; Hazards; Navigational obstructions; Prevention; Safety; Simulation; Steering
• ITRD Terms: 1661: Accident prevention; 1874: Braking; 8525: Conference; 1772: Driver; 1644: Obstacle; 9103: Simulation; 1834: Steering (process)
• Subject Areas: Safety and Human Factors; Security and Emergencies;

Filing Info

• Accession Number: 00757225
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Dec 17 1998 12:00AM