Crash testing and evaluation of TxDOT burn ban signs.
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2009-08-01
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Edition:Technical report; Sept. 2004-Apr. 2008
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Abstract:Texas counties expressed a desire to the Texas Department of Transportation (TxDOT) to post
advisory signs on the roadside to alert motorists when a burn ban is in effect. For obvious economic reasons,
the preferred method of implementation is to append the burn ban notification signs to existing sign support
structures already installed along Texas highways.
In support of this request, TxDOT sponsored this project to evaluate the impact performance of a
Texas slip base sign support system with a lightweight, composite burn ban sign appended to the support
below the primary sign at a mounting height less than 7 ft. The impact performance of the burn ban sign
support configurations was evaluated through full-scale crash testing. The crash testing was performed in
accordance with the requirements of NCHRP Report 350. The configuration selected for testing
incorporated a 24 inch × 24 inch × 0.080 inch thick aluminum confirmation sign mounted at a height of 7 ft,
with the burn ban signs mounted below.
Based on the satisfactory test results reported herein, the practice of appending a burn ban sign to an
existing slip base sign support system is considered suitable for implementation.
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