A STATISTICAL ANALYSIS OF SPEED-DENSITY HYPOTHESIS /A SUMMARY/

DATA WERE COLLECTED ON THE EISENHOWER EXPRESSWAY TO TEST AND EVALUATE SEVEN DIFFERENT SPEED-DENSITY MODELS' THE GREENSHIELDS, GREENBERG, UNDERWOOD, EDIE, 2-REGIME LINEAR, 3-REGIME LINEAR, AND BELL CURVE MODELS. STATISTICAL PROCEDURES WERE IMPLEMENTED TO DETERMINE BREAK-POINTS IN MULTI-REGIME REGRESSION ANALYSES. THE EDIE FORMULATION GAVE THE MOST SATISFYING ESTIMATES OF THE FUNDAMENTAL PARAMETERS. THE STANDARD ERROR OF ESTIMATE WAS FOUND TO BE THE MOST CONSISTENT STATISTICAL MEASURE FOR BOTH SINGLE- REGIME AND MULTI-REGIME HYPOTHESES. /BPR/

  • Supplemental Notes:
    • Hpr, Ihr-88, HPS-HPR-/1/54
  • Corporate Authors:

    Chicago Area Expressway Surveillance Project

    ,    
  • Authors:
    • Drake, J
    • Schofer, J
    • May, A
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00227490
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS
  • Created Date: Aug 15 2004 2:00AM