Automated-Manual Transitions: Human Capabilities and Adaptive Cruise Control

This report describes a study in which the authors examined the conditions required for a graceful automated-manual transition resulting from the use of adaptive cruise control (ACC). Focus is on two features of the human operator: 1) the visual capabilities required by the human operator to determine the need to assume manual control, and 2) the features of an in-vehicle warning signal, initiated by either a lead vehicle or a following vehicle, that could reliably prompt appropriate human operator action. This was accomplished by the following tasks: 1) a literature review that identified the visual cues that prior research identified as likely being the most important to human observers in detecting and avoiding impending collisions; 2) development of laboratory microsimulation of the lead vehicle braking scenario; 3) laboratory studies of cues to headway change judgment; and, 4) false alarm studies.

• Record URL:
  https://escholarship.org/uc/item/7ws0b58k
• Record URL:
  https://merritt.cdlib.org/d/ark%3A%2F13030%2Fm54t6kkt/2/producer%2FPRR-2004-18.pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/55233361
• Corporate Authors:

  University of California, Berkeley

  California PATH Program, Institute of Transportation Studies
  Richmond Field Station, 1357 South 46th Street
  Richmond, CA  United States  94804-4648

  University of California, Berkeley

  Berkeley, CA  United States  94720-1720

  California Department of Transportation

  1120 N Street
  Sacramento, CA  United States  95814
• Authors:
  • Barton, Joseph E
  • Cohn, Theodore E
  • Nguyen, Khoi M
  • Nguyen, Tieuvi
  • Toyofuku, Natsuko
• Publication Date: 2004-5

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 33p
• Serial:
  • PATH Research Report
  • Publisher: University of California, Berkeley
  • ISSN: 1055-1425

Subject/Index Terms

• TRT Terms: Adaptive control; Advanced vehicle control systems; Automatic headway control; Autonomous intelligent cruise control; Cruise control; Headways
• Subject Areas: Highways; Operations and Traffic Management; Research; I73: Traffic Control;

Filing Info

• Accession Number: 01044986
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• Report/Paper Numbers: UCB-ITS-PRR-2004-18
• Contract Numbers: TO 4221
• Files: CALTRANS, TRIS, ATRI, STATEDOT
• Created Date: Mar 5 2007 7:49PM