PAVEMENT CHARACTERISTIC STUDIES OF N.H. 3 AND N.H. 4

THIS STUDY WAS TAKEN UP IN MAHARASHTRA STATE ON THE INVITATION OF THE CHIEF ENGINEER, BUILDINGS AND COMMUNICATIONS, DEPARTMENT OF THE GOVERNMENT OF MAHARASHTRA, IN CONNECTION WITH THE I.D.A. WORKS FOR IMPROVING THE ROADS OF NATIONAL HIGHWAYS TO INTERNATIONAL STANDARDS. RIDING QUALITY OF EXISTING PAVEMENT WAS ONE OF THE FACTORS FOR DECIDING THE STRETCH OF ROAD TO BE IMPROVED. ROAD TESTS WITH THE BUMP INTEGRATOR WERE CONDUCTED ON THE N.H. 4 KOLHAPUR-POONA SECTION (KM-592/5-836/0) AND THE N.H. 3 BOMBAY-AGRA ROAD (KM 265/0-543/0). THE MEAN VALUE OF THE ROUGHNESS INDEX FOR THE 403 KMS TESTED IS 303.8 INCHES/MILE AND THE STANDARD DEVIATION IS 50 INCHES/MILE. ALLOWING THE TOLERANCE LIMIT 50 INCHES/MILE, IT WAS CONSIDERED THAT 250 INCHES/MILE AND BELOW WAS GOOD SECTION. THE STANDARD ADOPTED IN DIFFERENT COUNTRIES VARY ACCORDING TO THE DIFFERENT METHODS OF ROAD CONSTRUCTION, VOLUME OF TRAFFIC, AND THE WAY OF MAINTENANCE TO THE VARYING CLIMATIC CONDITIONS. 160 INCHES/MILE AND BELOW IS CONSIDERED TO BE A GOOD SURFACE IN THE UNITED KINGDOM; IN THE UNITED STATES (1) IN THE STATE OF VIRGINIA 100 TO 150 INCHES/MILE, (2) IN THE STATE OF CALIFORNIA 100 TO 200 INCHES/MILE, AND (3) IN THE STATE OF MINNESOTA 75 INCHES/MILE AND BELOW. THE HIGHWAY RESEARCH BOARD COMMITTEE HAS RECOMMENDED 100 TO 150 INCHES/MILE AS GOOD SURFACE. THE CENTRAL ROAD RESEARCH INSTITUTE, NEW DELHI, HAS EVOLVED A STANDARD OF 160 INCHES/MILE AND BELOW AS GOOD SURFACE AS PER THE TESTS CONDUCTED IN SOME OF THE ROADS IN INDIA. IN TAMIL NADU, IT HAS BEEN ASSESSED THAT 230 INCHES/MILE AND BELOW, ROUGHNESS INDEX IS GOOD ROAD SECTION, AND IMPROVEMENTS ARE BEING MADE TO THE ROAD SECTIONS WHERE THE VALUES ARE HIGHER. AS PER THE TESTS CONDUCTED IN MAHARASHTRA STATE, RECOMMENDATIONS ARE GIVEN FOR IMPROVING THE ROAD SECTIONS WITH A HIGHER INDEX VALUE THAN 250 INCHES/MILE. 46 KMS IN N.H. 3 WITH 3-INCH BITUMINOUS MACADAM AND 1.25-INCH THICK ASPHALTIC CONCRETE PAVEMENT HAS GIVEN AN INDEX VALUE VARYING FROM 126 INCHES/MILE TO 220 INCHES/MILE. THUS THE STUDY INDICATES THAT BETTER RIDING QUALITY CAN BE ACHIEVED BY MECHANIZED METHODS OF ROAD CONSTRUCTION AND WITH A SUPERIOR TYPE OF SURFACE LIKE ASPHALTIC CONCRETE. /AUTHOR/

  • Supplemental Notes:
    • UDC 625800412
  • Corporate Authors:

    Highways Res Station, Madras /India

    ,    
  • Publication Date: 1971

Media Info

  • Features: Tables;
  • Pagination: 41 p.
  • Serial:
    • Issue Number: 35

Subject/Index Terms

Filing Info

  • Accession Number: 00207592
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 5 1974 12:00AM