VEHICULAR TRAFFIC FLOW THEORY AND TUNNEL TRAFFIC FLOW MEASUREMENTS

VEHICULAR TRAFFIC FLOW HAS BEEN INVESTIGATED THEORETICALLY AND EXPERIMENTALLY IN ORDER THAT PEAK HOUR COLLECTIVE TRAFFIC FLOW DYNAMICS BE UNDERSTOOD AND THAT THE PEAK HOUR FLOW THROUGH THE CALLAHAN TUNNEL BE IMPROVED. TWO THEORETICAL MODELS ARE SUGGESTED, THE FINITE REACTION TIME MODEL AND THE ASYMMETRICAL RESPONSE MODEL, AS PREDICTIVE OF OBSERVED TRAFFIC DENSITY DYNAMICS, WAVE GROWTH AND ASYMMETRY. AN ANALYSIS OF TRAFFIC FLOW DATA IS GIVEN FROM THE HOLLAND TUNNEL SHOWING A SLOWDOWN WAVE. EXPERIMENTALLY, A TRAFFIC FLOW PROFILE OF CAPACITIES, VEHICLE SPEEDS AND TRAFFIC DENSITIES IN THE CALLAHAN TUNNEL HAS BEEN OBTAINED, AND RELATIONSHIPS BETWEEN SLOWDOWN WAVE PHENOMENA AND TRAFFIC FLOW, DETERMINED. BASED ON THESE, IT IS SUGGESTED THAT TRAFFIC FLOW MAY BE IMPROVED WITH TRAFFIC FLOW MODIFICATION PROCEDURES. /AUTHOR/

• Supplemental Notes:
  • Rept No Dot-TSC-OST-71-7, 221 PP
• Corporate Authors:

  Department of Transportation

  /Transportation Systems Center
  ,   United States 
• Authors:
  • Chin, G
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Field tests; Highway operations; Traffic flow; Traffic flow theory; Tunnels; Vehicular tunnels
• Old TRIS Terms: Tunnel traffic operations
• Subject Areas: Bridges and other structures; Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00227335
• Record Type: Publication
• Files: TRIS, USDOT
• Created Date: Jan 24 1972 12:00AM