HYDROCELLS: HOW DO THEY PERFORM?

THE HYDROCELL SYSTEM WAS SELECTED BY THE NEW YORK CITY DEPT. OF HIGHWAYS FOR INSTALLATION AT SEVERAL SITES, ON VIADUCT STRUCTURES AND AT GRADE, WHERE SPEEDS WERE FROM 30 TO 55 MPH AND WHERE DESIGN CHANGE WAS NOT FEASIBLE. THE HYDROCELL UNIT CONSISTS OF PLASTIC TUBES 6 INCHES IN DIAMETER AND 39 INCHES HIGH, CLUSTERED TOGETHER TO FORM AN ASSEMBLY. INSTALLATION OF A HYDROCELL DEVICE AT A DANGER POINT REQUIRES THE PLACEMENT OF EITHER A STEEL OR CONCRETE BACK-UP PLATE, MOVING THE FACTORY-ASSEMBLED UNIT (ABOUT 700 POUNDS, DRY WEIGHT) INTO POSITION AND (AT A GORE) POSITIONING CORRUGATED W-FORM RAIL ALONG THE SIDES OF THE WEDGE TO ALIGN THEM WITH THE ADJACENT BRIDGE RAILS. WATER IS PLACED IN THE TUBES, EACH OF WHICH HOLDS THREE GALLONS. THE COLLISION REACTION IS ONE OF CONTROLLED DELAY AS THE FORCES OF IMPACT ARE CUSHIONED AND ABSORBED. WATER MAY SPRAY AS HIGH AS 15 FEET AS THE ENERGY OF THE MOVING VEHICLE IS DISSIPATED. /AUTHOR/

  • Availability:
  • Supplemental Notes:
    • Vol 102, No 12, PP 66-67
  • Authors:
    • Galler, S
  • Publication Date: 1971-12

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00203603
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 27 1972 12:00AM