SUMMARY OF STATEWIDE ROAD ROUGHNESS SURVEY FOR 1967 CONSTRUCTION PROGRAM

DATA ARE SUMMARIZED ON ROUGHNESS SURVEY RESULTS OF THE 1967 NEW CONSTRUCTION AND RESURFACING CONTRACTS IN THE SEVEN DISTRICTS IN THE STATE OF MARYLAND, EACH PUBLISHED IN SEVEN PROGRESS REPORTS. THE SEVEN DISTRICT REPORTS TABULATE THE PROJECT DETAILS, SUCH AS PAVEMENT SECTIONS, ROUGHNESS DATA, ETC. FOR THE EVALUATION OF RIDEABILITY RATINGS ACCORDING TO THE TYPE OF CONSTRUCTION. THE REPORT SUMMARIZES THE CONTRACTS OF EACH DISTRICT THEN TABULATES THE ROUGHNESS READINGS AND ASSESSES THE RIDEABILITY RATINGS SO THAT A COMPARISON CAN BE MADE AMONG THE DISTRICTS. THIS REPORT DOES NOT ATTEMPT TO LIST ANY REASONS FOR HIGH ROUGHNESS READINGS FROM THE INFORMATION AVAILABLE. IT IS INTENDED TO CORRELATE THIS 'LIMITED INFORMATION' WITH THAT BEING PREPARED BY OTHERS ON CONSTRUCTION METHODS, EQUIPMENT, CONTRACTORS, PROJECT PERSONNEL, ETC. HOWEVER, FROM THIS LIMITED INFORMATION REGARDING THE RIDEABILITY OF FLEXIBLE PAVEMENTS, FIVE OBSERVATIONS ARE MADE: (1) A WELL-DESIGNED FLEXIBLE SECTION OF MORE THAN TWO SECTIONS WILL HAVE GOOD RIDEABILITY RATINGS, (2) MAXIMUM SIZE AGGREGATE FOR BITUMINOUS CONCRETE SURFACING APPEARS NOT TO AFFECT THE RIDE SURFACING APPEARS INCH,(3) THIN LAYER RESURFACING, WITH OR WITHOUT LEVELING COURSE, GENERALLY SHOWS A FAIR RATING, (4) OPEN CRACKING APPEARING IN ONLY ONE OR TWO YEARS WILL CHANGE AN EXCELLENT RATING TO GOOD OR FAIR, AND (5) ON PROJECTS OF THIN RESURFACING AND WIDENING, THE PLACEMENT OF THE ROUGHOMETER WHEEL WILL SHOW AN EXCELLENT RATING IF THE WHEEL HAPPENS TO TRAVEL ON THE NEW SECTION. /BPR/

  • Supplemental Notes:
    • Hpr-pr-1 (4), AW 68-52-46
  • Corporate Authors:

    Maryland State Roads Commission

    ,    

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  USA  20590
  • Authors:
    • Lee, A
    • Chow, C H
  • Publication Date: 1968-7

Subject/Index Terms

Filing Info

  • Accession Number: 00206365
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS
  • Created Date: May 5 1994 12:00AM