EFFECTS OF VARYING PERIODS OF RED-PLUS-AMBER ON DRIVERS' STARTING RESPONSE TIMES AT A TRAFFIC SIGNAL

Use of a short period (about 1 second) of red-plus-amber ('red/amber') signal just prior to the green signal is standard practice in Victoria. Its purpose is to decrease starting delay. A small "test track" experiment was conducted to compare the effects of a number of red/amber durations, ranging from 0 to 3 seconds, on starting response times of individual drivers. This technical note describes the procedure, results and conclusions of the experiment. It concludes that the current Victorian practice, using red/amber period of 1 second is probably optimum to decrease starting delay under normal traffic conditions. /TRRL/

  • Record URL:
  • Availability:
  • Corporate Authors:

    ARRB Group Limited

    500 Burwood Highway
    Vermont South, Victoria    3133

    Mezhdunarodanya Kniga

    Smolenskaja Ploscad 32/34
    Moscow G-200,   USSR 
  • Authors:
    • MACDONALD, W A
  • Publication Date: 1978-12

Media Info

  • Features: Figures; References;
  • Pagination: p. 68-69
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00196778
  • Record Type: Publication
  • Source Agency: ARRB Group Limited
  • Files: ITRD, TRIS, ATRI
  • Created Date: Sep 29 1979 12:00AM