ESTIMATING TRAFFIC LOADINGS ON TEST PAVEMENTS IN MISSOURI: An Interim Report

INITIAL WORK IS DESCRIBED ON THE DEVELOPMENT OF A PROCEDURE FOR ESTIMATING, FOR A GIVEN TEST SECTION, THE ACCUMULATED NUMBER OF EQUIVALENT 18-KIP SINGLE-AXLE LOADS DURING A SELECTED PERIOD OF TIME. THE SPECIFIC PURPOSES ARE TO' /1/ CONSIDER SEVERAL POSSIBLE PROCEDURES FOR ESTIMATING THE LOADS AND TO COMPARE THEIR COSTS, /2/ INVESTIGATE THE PRINCIPAL FACTORS INVOLVED, /3/ CONSIDER THE REQUIRED DEGREE OF PRECISION AND, /4/ DEVELOP DETAILED SAMPLING METHODS AND A COMPUTATIONAL PROCEDURE BASED ON DATA OBTAINED. THE THREE PROCEDURES CONSIDERED FOR ESTIMATING THE LOADS WERE BASED ON : /1/ CONTINUOUS WEIGHING OF ALL VEHICLES, /2/ WEIGHING OF ALL VEHICLES DURING SELECTED SAMPLING PERIODS AND, /3/ ESTIMATING, FROM WEIGHINGS AT PERMANENT SCALE LOCATIONS, THE STATEWIDE AVERAGE EQUIVALENT 18-KIP SINGLE-AXLE LOAD PER VEHICLE FOR EACH VEHICLE TYPE. THEIR ESTIMATED COSTS ARE $109,500,000, $720,000 AND $299,000, RESPECTIVELY. THE LEAST COSTLY PROCEDURE WAS ADOPTED. THE FOLLOWING PRINCIPAL PERTINENT FACTORS WERE INVESTIGATED' /1/ WEEK DAY VERSUS WEEKEND TRAFFIC, /2/ AVERAGE EQUIVALENCIES PER VEHICLE FOR EACH VEHICLE TYPE, AND /3/ DIRECTION OF TRAVEL. A DESIRED STANDARD ERROR OF ESTIMATE NO GREATER THAN 10 PERCENT WAS ADOPTED. IN THE FISCAL YEAR 1965-66 CLASSIFICATION COUNTS WERE MADE AT EACH OF 8 TEST SECTION LOCATIONS. VEHICLE WEIGHT INFORMATION IS AVAILABLE FROM 9 PERMANENT SCALE LOCATIONS.

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Filing Info

  • Accession Number: 00227497
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS, STATEDOT
  • Created Date: Aug 15 2004 2:00AM