DISTRIBUTION OF ACCEPTANCE GAPS FOR CROSSING AND TURNING MANOEUVRES

STUDIES THAT HAVE BEEN MADE ON THE DISTRIBUTIONS OF THE GAPS REQUIRED BY DRIVERS TO TURN INTO AND CROSS A FREE- FLOWING TRAFFIC STREAM ARE DESCRIBED. ATTENTION HAS BEEN FOCUSED ON THE DRIVER-VEHICLE PARAMETER AND THE TYPE OF MANOEUVRE, AND IT WAS SOUGHT WHERE POSSIBLE TO REGARD THE OTHER VARIABLES AS BOUNDARY CONDITIONS. HOWEVER, THE FACT THAT THE FIELD MEASUREMENTS WERE CARRIED OUT AT A NUMBER OF DIFFERENT LOCATIONS AT DIFFERENT TIMES PERMITTED SOME SPOT CHECKS TO BE MADE ON THE EFFECT OF THESE ENVIRONMENTAL PARA- METERS (FLOW IN MAIN STREAM, SPEED OF ENTERING VEHICLES, COMMERCIAL VEHICLE PERCENTAGE) ON THE GAP DISTRIBUTION. A THEORETICAL DISTRIBUTION HAS BEEN FITTED TO THE EXPERIMENTAL DATA FOR LEFT-TURN MERGING MANOEUVRES AND A FORMULA FOR THE DELAY RESULTING FROM THE DISTRIBUTION OF GAPS HAS BEEN DEVELOPED AND COMPARED WITH MEASURED DELAYS. /AUTHOR/

• Supplemental Notes:
  • Vol 1, Part 1, PAPER NO. 11, PP 188-205, 8 FIG, 2 TAB, 6 REF
• Authors:
  • Blunden, W R
  • Clissold, C M
  • Fisher, R B
• Publication Date: 0

Media Info

• Serial:
  • Australian Road Research Board Proc
  • Issue Number: 0

Subject/Index Terms

• TRT Terms: Commercial vehicles; Field tests; Gap acceptance; Highway traffic; Merging traffic; Speed; Traffic delays; Traffic flow; Traffic flow theory; Turning traffic
• Uncontrolled Terms: Field measurements; Turning movements
• Old TRIS Terms: Vehicular traffic
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00227139
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 13 2004 6:56PM