United States Department of Transportation
i
Testing of small and large sign support systems FOIL test number : 92F017
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1994-07-01
[PDF-1.12 MB]
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Alternative Title:Testing of small and large sign support systems Federal Outdoor Impact Laboratory test numbers
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Edition:Test report
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NTL Classification:NTL-SAFETY AND SECURITY-Highway Safety
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Abstract:This test report contains the results of a crash test performed at the Federal Outdoor Impact Laboratory (FOIL) in McLean, Virginia. The test was performed on a small sign support system at 20 mi/h (8.9 m/s), test 92F017. The vehicle used for this test was a 1985 Honda Civic. The purpose of this test was to evaluate the low-speed safety performance of a triple post u-channel sign support system in weak soil. The posts were made from 2.5-lb/ft (3.7-kg/m) u-channel. 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 triple post 2.5-lb/ft (3.7-kg/m) u-channel sign support in weak soil does not meet all of the applicable performance criteria for roadside safety appurtenances specified by the FHWA.
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