ANALYSIS AND VALIDATION OF LANE-DROP EFFECTS ON MULTI-LANE FREEWAYS

THIS REPORT PRESENTS AN ANLAYSIS OF LANE-DROP EFFECTS ON FREEWAYS. A MATHEMATICAL MODEL WHICH DESCRIBED THE DENSITY PERTURBATION ON A MULTILANE FREEWAY WAS FORMULATED AND VALIDATED. THE HYDRODYNAMIC THEORY OF TRAFFIC FLOW WAS EMPLOYED FOR THE DEVELOPMENT OF THE MATHEMATICAL MODEL. SEVERAL TYPES OF LANE-DROP WERE STUDIED. THIS WAVE PROPAGATION OF DENSITY PERTURBATIONS WAS OBTAINED IN EACH CASE WITH THE KNOWLEDGE OF BOUNDARY CONDITIONS. FOR VALIDATION PURPOSES, AERIAL PHOTOGRAPHIC FIELD DATA WERE TAKEN ON TWO SELECTED FREEWAY LANE-DROP SITES. THESE DATA WERE THEN COMPARED TO THE RESULTS OBTAINED FROM THE MATHEMATICAL MODEL. /TR/

• Supplemental Notes:
  • Vol 5, No 4, PP 257-266, 8 FIG, 9 REF
• Authors:
  • Munjal, P K
  • Hsu, Yar-Sun
  • Lawrence, R L
• Publication Date: 1971-12

Media Info

• Serial:
  • Transportation Research /UK/
  • Publisher: Pergamon Press, Incorporated

Subject/Index Terms

• TRT Terms: Aerial photography; Interchange ramps; Lane drops; Mathematical models; Merging traffic; Multilane highways; Off ramps; On ramps; Perturbation theory; Traffic density; Traffic flow; Traffic lanes
• Old TRIS Terms: Freeway ramps; Lanes
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00226216
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 24 1972 12:00AM