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FHWA Highway Safety Programs

Safety Eligibility Letter WZ-03(a)

Hardware Type:
Work Zone Devices
Code:
WZ-03(a)
Testing Criteria:
NCHRP 350
Manufacturer:
TTI for Texas D.O.T.
Device Description:
TTI tested numerous work zone traffic control devices. All the devices listed here were successfully tested in these two crash test programs and met TL-3 criteria. The attached drawings illustrate the tested hardware but do not necessarily provide enough information to fabricate the device. The crash testing is fully documented in the two reports1,2 which should be consulted for additional details of the hardware
View PDF:
wz-3.pdf (4.17 MB)