Compliance Crash Testing of K-Rail Used in Semi-Permanent Installations
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Compliance Crash Testing of K-Rail Used in Semi-Permanent Installations

Filetype[PDF-4.01 MB]


English

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  • TRIS Online Accession Number:
    00801130
  • Edition:
    Final
  • NTL Classification:
    NTL-HIGHWAY/ROAD TRANSPORTATION-HIGHWAY/ROAD TRANSPORTATION;NTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and Structures;NTL-HIGHWAY/ROAD TRANSPORTATION-Design;
  • Abstract:
    This report describes the compliance testing of semi-permanent installations of concrete temporary barrier (K-rail) in California. A semi-permanent K-rail barrier was tested in accordance with NCHRP Report 350. The barrier consisted of eight concrete segments 6045 mm in length. The segments were placed on AC pavement and connected with 61.8 x 660 - mm pins. Each segment was then secured to the ground using four 25 x 610-mm steel stakes. The barriers were constructed and tested at the Caltrans Dynamic Test Facility in West Sacramento, California. A total of two crash tests were conducted under Report 350 test level 3, one with an 820 kg sedan, and one with a 2000-kg pickup truck. Focus of the testing was two-fold: 1) to determine the effectiveness of the K-rail in containing and redirecting vehicles, and 2) to modify existing K-rail system, if needed, in order for it meet the NCHRP Report 350 criteria. The results of both tests were within the limits of the Report 350 criteria. It is recommended that the semi-permanent K-rail be approved for use on California State highways where semi-permanent TL?3 barriers are required. References, appendix, 26 p.
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