4860M sign stand with 48” x 48” Aluminum Sign

Report Number(s): P41147, P42033, P41148

Description: The MDI Worldwide 4860M sign stand is a portable work-zone traffic control device. The as-tested device consisted of one (1) steel stand base assembly, two (2) coil springs, four (4) aluminum legs, one (1) aluminum telescoping upright, two (2) adjustable rigid brackets, one (1) flag bracket, three (3) wood dowel flags and one (1) 48.0 in. (1.2 m) square aluminum sign. The as-tested device weighed 53.0 lbs (24.0 kg), including the weight of the sign. For this test, one (1) 25.0 lb. (11.3 kg) sand bag was placed on each of the device’s legs. The aluminum legs have open footprint dimensions of 55 in. (1.4 m) and 122 in. (3.1 m). The aluminum legs are constructed of 1.25” x 1.25” square tube. The telescoping upright consists of two (2) parts: upright one (1) which consists of a 1.5” square tube and upright two (2) which consists of a 1.25” square tube. For this test, the telescoping upright was set so that the sign had a mounting height of 60 in. (1.5 m) measured from grade to the bottom corner of the sign. The height of the 4860M sign stand was 132.0 in. (3.4 m), excluding the sign and flags. The sign was attached to the upright with two (2) adjustable rigid brackets. The dowel flags were attached to the upright using one (1) flag bracket.

Test Level: 3

Eligibility Letter: WZ-453

MASH Test Number: 3-71, 3-72

Proprietary/Non-proprietary: Proprietary

Pass/Fail: Pass

Evaluation: Full-Scale Crash Testing

Sponsor: MDI Worldwide