ANALYTICAL MODELS OF MULTI-LANE TRAFFIC FLOW, STUDY II. VOLUME III

THESE THREE VOLUMES GIVE MAJOR CONTRIBUTIONS IN THE STUDY OF STATISTICCAL CHARACTERISTICS OF FREEWAY TRAFFIC, EXTENSION OF CONTINUUM MODELS FOR MULTILANE FREEWAYS INVOLVING VARIOUS LANE-CCHANGING AND CAR-FOLLOWING HYPOTHESES, EXTENSION AND DEVELOPMENT OF BOLTZMANN TYPE MODELS FOR SPEED DISTRIBUTIONS ON MULTILANE FREEWAYS, AND IN THE DEVELOPMENT OF A FLEXIBLE SIMULATION MODEL IN MODULAR FORM TO REPRESENT FREEWAYS OF ARBITRARY CONFIGURATIONS AND INTERCHANGES. THE EFFECTS OF THE INTERFACE BETWEEN SURFACE STREET AND FREEWAY ARE ALSO STUDIED IN THE FORM OF ON- AND OFF-RAMP MODELS, ESTIMATION OF ON-RAMP FLOW AND PREDICTION AND STABILITY OF FREEWAY GAPS IN THE VICINITY OF AN ON-RAMP. USING REDUCED AERIAL TRAFFIC DATA FROM A NUMBER OF FREEWAYS, AS WELL AS GROUND DATA FROM THE FHWA TRAFFIC ANALYZER, VALIDATION STUDIES ON THEORETICAL MODELS WERE CONDUCTED IN ALL OF THE ABOVE AREAS. THE RESULTS OF THESE STUDIES HAVE POTENTIALLY WIDE APPLICATION TO THE OPERATION AND DESIGN OF FREEWAYS. IN THE FIRST TWO REPORTS OF THIS VOLUME STATISTICAL METHODS ARE APPLIED TO OBTAIN GAP PREDICTION IN THE VICINITY OF AN ON-RAMP, AS WELL AS THE PREDICTION OF ON-RAMP FLOW LEVELS. USING AERIAL EXPERIMENTAL DATA, WE SHOWED THE FEASIBILITY OF THESE PREDICTION STRATEGIES. THE REMAINING REPORTS IN THIS VOLUME ARE CONCENTRATED ON THE DIGITAL SIMULATION OF FREEWAY TRAFFIC. FIRSTLY, AN EXAMINATION OF NINE FREEWAY SIMULATION MODELS, DEVELOPED BY VARIOUS RESEARCH INSTITUTES, IS CARRIED OUT. SECONDLY, A MODULAR SIMULATION MODEL IS DEVELOPED, IN SEVERAL STEPS, TO ACHIEVE THE ULTIMATE GOAL OF SIMULATING FREEWAYS WITH ARBITRARY INTERCHANGE SYSTEMS AND CONFIGURATIONS. /FHWA/

• Corporate Authors:

  System Development Corporation

  2500 Colorado Avenue
  Santa Monica, CA  United States  90409
• Publication Date: 1972-7

Media Info

• Pagination: 324 p.

Subject/Index Terms

• TRT Terms: Aerial surveying; Digital computers; Forecasting; Freeway operations; Freeways; Interchange ramps; Mathematical models; Multilane highways; Ramps; Simulation; Statistical mechanics; Statistics; Traffic flow
• Uncontrolled Terms: Digital techniques; Models
• Old TRIS Terms: Aerial surveys; Boltzmann distribution; Freeway entrances and exits; Freeway gaps; Freeway ramps
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00227032
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: Final Rpt.
• Contract Numbers: DOT-FH-11-7628
• Files: TRIS, USDOT
• Created Date: Jul 16 1974 12:00AM