"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 92F012. The vehicle used for these test was a 1985 Honda Civic. The purpose of this test was to evaluate the low-speed safety performance of a dual 3-lb/ft (4.5-kg/m) u-channel sign support in weak soil. The posts were spaced 2 ft 4 in (0.7 m) apart. 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 3-lb/ft (4.5-kg/m) u-channel sign support with 2-ft 4-in (0.7-m) spacing does not meet all of the applicable performance criteria for roadside safety appurtenances in weak soil specified by the FHWA"--Technical report documentation page.