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Testing of Small and Large Sign Support Systems FOIL Test Numbers: 92F020 and 92F021
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1994-07-01
[PDF-3.12 MB]
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Abstract:This test report contains the results of two crash tests performed at the Federal Outdoor Impact Laboratory (FOIL) in McLean, Virginia. The tests were performed on a small sign support system at 20 mi/h (8.9 m/s), test 92F020, and 60 mi/h (26.8 m/s), test 92F021. The vehicle used for these tests was the FOIL reusable bogie vehicle. The purpose of the tests was to evaluate the low-· and high-speed safety performance of a dual legged wooden six by eight in concrete foundations, sign support. The performance evaluation was based on the latest requirements for breakaway supports as specified in Volume 54, Number 3 of the Federal Register dated January 5, 1989. These criteria specify, in part, that the occupant change in velocity must be 16 ft/s (4.9 m/s) or less, that the significant test article stub height remaining after impact be no more than 4 in (102 mm), and that there can be no occupant compartment intrusion. The test results indicate that the dual legged wooden 6-ft by 8-ft (1.83-m by 2.44-m) sign support system meets all of the applicable criteria for the low- and high-speed test in weak soil specified by the FHWA.
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