THE DRIVER-AUTOMATIC SYSTEM INTERFACE

A DRIVER'S INABILITY TO DETECT SMALL RELATIVE VELOCITIES AND SMALL ERRORS IN HEADWAY IS A PRIMARY REASON FOR HIS POOR CAR-FOLLOWING PERFORMANCE. THIS CAN BE GREATLY IMPROVED IF HE IS GIVEN INFORMATION--HEADWAY AND RELATIVE VELOCITY-- CONCERNING THE STATE OF A LEAD CAR. THIS MAY BE PROVIDED VISUALLY, TACTUALLY, OR AUDIBLY. IN THE STUDY REPORTED A CONTROL STICK WITH A BUILT-IN KINESTHETIC TACTILE DISPLAY WAS TESTED IN A CAR-FOLLOWING SITUATION. PERFORMANCES WITH THIS DISPLAY WERE COMPARED TO THOSE OBTAINED WHEN NO AIDING WAS USED IN A SIMILAR SITUATION. SIZEABLE REDUCTIONS IN VELOCITY VARIANCE AND HEADWAY VARIANCE WERE OBTAINED FOR THE AIDED RELATIVE TO THE UNAIDED CASE. THESE WERE OBTAINED FOR HEADWAYS OF 23 FEET AT 30 MPH AND 33 FEET AT 40 MPH. THUS, THIS DISPLAY CAN BE EFFECTIVELY USED AT SHORT HEADWAYS. /BPR/

  • Corporate Authors:

    Ohio State University, Columbus

    190 North Oval Drive
    Columbus, OH  USA  43210

    Ohio Department of Highways

    Columbus, OH  USA  43210

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  USA  20590
  • Authors:
    • Fenton, R E
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00224936
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Report/Paper Numbers: Ees-276a
  • Files: TRIS
  • Created Date: Apr 16 1970 12:00AM