Pendulum impact testing of an impact-breakaway, windresistant base connection for multi-post ground signs : [summary].
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2012-01-01
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Abstract:Roadside signs are critical to traffic control.
However, if not properly designed to yield
upon vehicle impact, these signs become lifethreatening
hazards. Yet, the signs must be able
to withstand wind loading, in Florida, up to
hurricane force winds. In a disaster, a collapsed
sign poses two dangers: drivers no longer receive
the sign’s information, and it can obstruct traffic
lanes. Current sign supports
meet these challenges, but
their breakaway mechanism
is undesirably sensitive to the
accuracy of the torque that is
imposed on the bolts during
installation and maintenance.
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