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Investigating the Use of a New Universal Breakaway Steel Post-Phase 2

REPORT NUMBER

TRP-03-230-10

AUTHORS

Jennifer Schmidt, Dean Sicking, Ronald Faller, John Reid, Bob Bielenberg, Karla Lechtenberg

PUBLICATION DATE

2010-08-09

ABSTRACT

A new fracturing-bolt, universal breakaway steel post was developed and evaluated for use as a replacement for the wood controlled release terminal (CRT) post currently used in the thrie beam bullnose system. The breakaway steel post was implemented into the thrie beam bullnose barrier system and subjected to one 2000P full-scale vehicle crash test according to the Test Level 3(TL-3) guidelines provided in NCHRP Report No. 350. Test no. USPBN-2 (test designation no. 3-38) demonstrated that the breakaway steel post performed in a satisfactory manner in the bullnose system as the pickup truck was captured and did not override the guardrail system.

KEYWORDS

Highway Safety, Crash Test, Roadside Appurtenances, Compliance Test, NCHRP Report No. 350, Guardrail Posts, Wood Posts, Breakaway Steel Posts, Bullnose Barrier, Median Barrier

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