S-F'S YELLOW CABS TEST "CYBERLITE"

THE YELLOW CAB COMPANY OF SAN FRANCISCO HAS INSTALLED ON 350 OF ITS TAXIS A CENTER-MOUNTED REAR LIGHT THAT FLASHES WHEN THE DRIVER APPLIES HIS BRAKES. THE PULSE RATE OF 1--7.6 FLASHES/SECOND IS A FUNCTION OF THE ABRUPTNESS OF BRAKE APPLICATION. IN THE FIVE YEARS PRECEDING INSTALLATION OF THE SYSTEM, THE COMPANY'S REAR-END COLLISION RATE WAS 16 MONTHLY; IN THE FIRST FULL MONTH THE RATE AMONG THE CYBERLITE-EQUIPPED GROUP FELL TO 2.6. IN ADDITION, OVER THE FIRST THREE MONTHS OF TESTING THE AVERAGE COST PER ACCIDENT DROPPED FROM $305 TO $35. THE LIGHTS WERE INITIALLY SET FOR A MAXIMUM BRIGHTNESS OF 1700 CANDLEPOWER. BECAUSE OF COMPLAINTS THIS WAS REDUCED TO 600, AND THE COLLISION RATE IMMEDIATE ROSE FROM ONE IN TWO WEEKS TO SIX. A COMPROMISE WAS REACHED AT 1200, WHICH HAS BEEN FOLLOWED BY A LEVEL RATE OF ONE REAR-END COLLISION PER WEEK.

  • Corporate Authors:

    N/A

    ,   USA 
  • Authors:
    • Goldrath, B
  • Publication Date: 0

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Filing Info

  • Accession Number: 00222072
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 15 2003 12:00AM