EXPERIMENTAL INSTALLATIONS OF IMPACT ATTENUATION DEVICES

THE MALADY OF BRIDGE WALLS AND SIGN SUPPORTS RESTRICTING THE CLEAR ZONE WITHIN THE GORE AREA BETWEEN DIVERGING TRAFFIC LANES IN RECOGNIZED AS A PROBLEM. SEVERAL VARIATIONS OF THE SINGULAR CONCEPT OF ENERGY ABSORPTION THROUGH IMPACT ATTENUATION HAVE BEEN SUGGESTED. THE CONCEPT IS BASICALLY TO PROVIDE A SURVIVABLE RATE OF DECELERATION TO THE OCCUPANTS OF THE CRASH-ORIENTED VEHICLE BY INCREASING THE DISTANCE OVER WHICH THE VEHICLE COMES TO REST. THE ENERGY ABSORBING DESCRIPTION IS BETTER DESCRIBED AS MOMENTUM TRANSFERENCE SINCE DECELERATION IS ACCOMPLISHED BY IMPARTING THE MOMENTUM OF THE MOVING BODY TO A MEDIUM WITHIN THE CRASH BARRIER, SUCH AS SAND OR SPEWING WATER. A REVIEW IS PRESENTED OF THE VARIOUS TYPES OF DEVICES DEVELOPED. TWO TYPES OF BARRIERS WERE SELECTED TO BE INSTALLED ON AN EXPERIMENTAL BASIS AT SELECTED GORE LOCATIONS ON KENTUCKY HIGHWAYS. THESE WERE THE HI-DRO CUSHION CELLS, DEVELOPED BY JOHN RICH ENTERPRISES, INC. OF SACREMENTO, CALIFORNIA, AND FITCH INERTIAL BARRIERS DEVELOPED BY FIBCO, INC., OF HARTFORD, CONNECTICUT. DETAILS OF THESE TWO TYPES OF BARRIERS CAN BE FOUND IN THE REFERENCED REPORT AND ALSO IN THE RESPECTIVE MANUFACTURER'S PROMOTIONAL LITERATURE. /AUTHOR/

  • Record URL:
  • Supplemental Notes:
    • Res Rept No 308, 59 PP, 49 FIG, 16 REF, 3 APP
  • Corporate Authors:

    Kentucky Department Highways

    ,    
  • Authors:
    • Siria, B S
    • Seymour, W M
    • Cornette, D L
    • Miller, J L
  • Publication Date: 1971-5

Subject/Index Terms

Filing Info

  • Accession Number: 00203587
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Dec 13 1971 12:00AM