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Accession Number PB2013-107737
Title Worker Safety During Operations with Mobile Attenuators.
Publication Date May 2013
Media Count 70p
Personal Author L. Theiss R. P. Bligh
Abstract While most transportation agencies are very familiar with truck-mounted attenuators, trailer-mounted attenuators are increasing in popularity. There is a concern for the level of protection that attenuators provide for workers when they are mounted on trailers compared to trucks. This research evaluated and compared the level of protection provided to workers by truck-mounted and trailer-mounted attenuators. No crash testing was conducted; instead, the researchers used existing crash test report data for the comparison. The researchers found that the use of heavier support vehicles for these mobile attenuators provided better protection for workers and recommend that TxDOT maintains the current policy of requiring 20,000 lb support vehicles, regardless of attenuator type. In addition, the researchers found that the concern of trailer-mounted attenuators swinging around may not be justified, given that post-impact trajectories of the impacting vehicles are similar to those reported during truck-mounted attenuator impact testing.
Keywords Attenuators
Highway maintenance
Impact tests
Mobile barriers
Trailer mounted attenuator
Truck mounted attenuator(TMA)
Work zone safety
Worker safety

Source Agency Federal Highway Administration
Texas Transportation Institute Texas A&M University
NTIS Subject Category 85D - Transportation Safety
85H - Road Transportation
43G - Transportation
91B - Transportation & Traffic Planning
50A - Highway Engineering
Corporate Author Texas Transportation Inst., College Station.
Document Type Technical report
Title Note Technical rept.
NTIS Issue Number 1318
Contract Number N/A

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