PROPAGATION OF ON-RAMP DENSITY WAVES ON UNIFORM UNIDIRECTIONAL MULTILANE FREEWAYS

THIS PAPER PRESENTS A GENERALIZED ANALYSIS OF THE EFFECTS OF ON-RAMP TIME VARYING FLOW ON UNIDIRECTIONAL N-LANE FREEWAYS. THE ANALYSIS INCORPORATES THE SPEED-DENSITY RELATIONS FOR EVERY LANE, WHICH ARE THEN USED TO SET UP SEPARATE CONTINUITY EQUATIONS FOR EVERY LANE AND ARE COUPLED BY SOME REASONABLE LANE-CHANGING HYPOTHESES. THE PAPER ASSUMES THE SAME WAVE VELOCITIES (UNIFORM FREEWAY) FOR THE PERTURBED FLOW IN EACH LANE OF A FREEWAY. USING THE GENERALIZED N-LANE ANALYSIS, THE PAPER THEN PREDICTS THE RELATIVE PROPAGATION OF DENSITY PERTURBATIONS IN TIME AND SPACE IN DIFFERENT LANES OF A TWO-LANE, THREE-LANE, AND FOUR-LANE FREEWAY. THE CORRESPONDING RELAXATION DISTANCES FROM THE ON-RAMP, WHERE THE INITIAL PERTURBATION HAD STARTED, HAVE BEEN DEFINED AND COMPARED FOR THE TWO-LANE, THREE-LANE, AND FOUR-LANE FREEWAY. THE ABOVE STUDIES HAVE THEN INCORPORATED THE EFFECTS OF CONTROLLED RAMP FLOW BY SUITABLE MATHEMATICAL EXPRESSIONS THAT SIMULATE CONTROLLED RAMP FLOW. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1767714
• Supplemental Notes:
  • Vol 5, No 4, PP 390-402, 4 FIG, 4 REF
• Corporate Authors:

  Operations Research Society of America

  428 East Preston Street
  Baltimore, MD  United States  21202
• Authors:
  • Munjal, P K
  • Pipes, L A
• Publication Date: 0

Media Info

• Serial:
  • Transportation Science
  • Volume: 5
  • Issue Number: 2
  • Publisher: Institute for Operations Research and the Management Sciences (INFORMS)
  • ISSN: 0041-1655
  • Serial URL: http://transci.journal.informs.org/

Subject/Index Terms

• TRT Terms: Interchange ramps; Mathematical analysis; Multilane highways; On ramps; One way traffic; Perturbation theory; Traffic control; Traffic density; Traffic flow theory; Traffic speed
• Old TRIS Terms: Freeway entrances and exits; Freeway ramps
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00227342
• Record Type: Publication
• Files: TRIS
• Created Date: May 1 1972 12:00AM