OPERATIONAL CHARACTERISTICS OF LANE DROPS; INTERIM REPORT

A PILOT STUDY WAS CONDUCTED AT THE I 64 - I 75 INTERCHANGE IN FAYETTE COUNTY, KENTUCKY. THIS IS A STANDARD THREE-LEG INTERCHANGE OF DIRECTIONAL DESIGN WITH A THREE-LEVEL STRUCTURE. TRAFFIC CONFLICTS (ERRATIC MOVEMENTS) WERE GROUPED INTO SIX CATEGORIES: CUT ACROSS GORE AREA, CROWDED WEAVE, STOPPED OR SLOWED DRASTICALLY, SWERVED, BACKED AT GORE, AND MULTIPLE ERROR. SPOT-SPEED STUDIES WERE ALSO MADE AT EACH OF THE THREE INTERCHANGE APPROACHES AND VOLUME COUNTS WERE MADE OF BOTH THE MEDIAN AND SHOULDER LANES. A STUDY OF ERRATIC MOVEMENT AND BREAKFLIGHT-RATE DEVIATIONS INDICATES THAT NO TYPE OF TRAFFIC CONTROL DEVICE WAS SIGNIFICANTLY EFFECTIVE IN REDUCING ERRATIC MOVEMENT AND BRAKELIGHT RATES AT ALL THREE LANE-SPLIT LOCATIONS. RATHER, IT APPEARS THAT DIFFERENT DEVICES ARE MOST EFFECTIVE AT EACH OF THE LOCATIONS. /AUTHOR/

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Filing Info

  • Accession Number: 00203597
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Jan 24 1972 12:00AM