A long-range program to measure driver and pedestrian behavior at signalized intersections has been launched by 3M Co. The intent is to make available information that can contribute to a reduction of accidents at such locations. Called OPSEE (Optically Programed Signal Efficiency Evaluation), the program will utilize 3M's optically programed traffic signals at up to 100 selected in intersections in municipalities throughout the United States. Through application of incremental optic technology, optically programed signals allow a driver or pedestrian to see only the signal that is directed at him. This eliminates one of his decision-making tasks-that of interpreting which signal indication is meant to control his movement. Specific types of signalized intersections to be studied in 3M's National Field Laboratory of chosen sites include (1) closely spaced intersections, where drivers can be misled by "downstream" signals not intended to control their movement; (2) skewed (angled) intersections, where drivers are confused by signals intended for other approaches; and (3) separate turn movement signals, where drivers are confronted with conflicting through/turn movement indications.

  • Corporate Authors:

    Dun Donnelley Publishing Corporation

    222 South Riverside Plaza
    Chicago, IL  United States  60606
  • Authors:
    • High, R C
  • Publication Date: 1974-11

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00084693
  • Record Type: Publication
  • Source Agency: National Safety Council Safety Research Info Serv
  • Files: TRIS
  • Created Date: Jul 2 1975 12:00AM