INTERSECTION SIMULATION MODEL VALIDATION

THE PRIMARY OBJECTIVE OF THIS STUDY IS TO VALIDATE THE BEST INTERSECTION SIMULATION MODELS AVAILABLE AND THEIR COMPONENTS. AN EXHAUSTIVE SEARCH WAS DONE TO DETERMINE THE MODELS THAT WERE AVAILABLE WHEN THE STUDY BEGAN. FROM THE AVAILABLE MODELS, FOUR OF THEM WERE SELECTED FOR DETAILED VALIDATION. THE SELECTED MODELS WERE: (1) NCHRP MODEL BY D. L. GERLOUGH AND F. A. WAGNER, (2) LEWIS MODEL BY R. M. LEWIS AND H. L. MICHAELS, (3) SIGAL MODEL BY J. H. KELL, AND (4) BLEYL MODEL BY R. L. BLEYL. THE OUTPUT OF THE FOUR MODELS WAS COMPARED INITIALLY SIMULATING AN ORTHOGONAL INTERSECTION WITH ONE-LANE APPROACHES. THEN, DATA FROM FIELD STUDIES MADE IN THE SAN FRANCISO BAY AREA AND IN TORONTO WERE USED TO VALIDATE THE MODELS AND THEIR COMPONENTS. THE VALIDATION STUDIES FELL SHORT OF PROVIDING THE COMPLETE ANSWER TO THE QUESTION OF WHETHER OR NOT THE MODELS ARE VALID. THEY DID, HOWEVER, PROVIDE VALUABLE INSIGHT INTO THE CAPABILITIES AND SHORTCOMINGS OF EACH MODEL. THOSE STUDIES HAVE SHOWN THAT EACH OF THE MODELS HAS CERTAIN FAVORABLE ATTRIBUTES, BUT ALL HAVE DEFINITE LIMITATIONS. NO ONE WAS CONSIDERED TO BE IDEAL OR EVEN ADEQUATE FOR ALL NEEDS. THE AUTHOR RECOMMENDS THAT THE MAJOR EFFORT IN SIMULATION BE DIRECTED TOWARD THE DEVELOPMENT OF AN ENTIRELY NEW MODEL THAT MUST BE CAPABLE OF SIMULATING SATISFACTORILY A WIDE VARIETY OF INTERSECTIONS. /BPR/

• Corporate Authors:

  Traffic Research Corporation

  ,    
• Authors:
  • Kell, J H
• Publication Date: 1966-12

Subject/Index Terms

• TRT Terms: Field studies; Intersections; Mathematical models; Orthogonality; Simulation; Validation
• Uncontrolled Terms: Models
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00224861
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Report/Paper Numbers: Cpr-11-2863
• Files: TRIS
• Created Date: Oct 23 1994 12:00AM