Release 08/21
High-Containment Roadside Safety Barrier
9
HIGHWAY
Figure 5: Clear Zone Requirement for the use of Departure Terminals
7.0 InStALLAtIon
7.1 Terminals
Guardrail end terminals are installed at the beginning and end
of a run of guardrail. Their primary purpose is to anchor the
longitudinal barrier and to minimise deflection. Crashworthy
terminals are typically used in locations where they can be
impacted end-on as they are designed to provide a soft
gating impact if impacted near the end rail. This prevents any
spearing of an errant vehicle. Part of the end-terminal may
also be redirective.
Ezy-Guard HC is installed at a system height of 980mm,
measured to the top of the rail. This height is compatible with
our asymmetric 1,905mm transition bracket and the TREND-
350 terminal, refer to installation drawings.
Terminals should be installed in accordance with the
proprietor’s drawings and specifications. Z-posts are not to
be used in the terminals unless approved by the proprietor.
The installation of terminals will typically incorporate the use
of blocking/offset pieces positioned between the posts and
rail. This will require the supporting posts to be offset from
the set-out line used for the installation of the Z-posts which
do not require blocking pieces.
In addition, the post spacing used in the terminals and
transitions may vary from the 2m spacing used for installation
of Ezy-Guard HC. The required post spacing for terminals and
transitions will be contained in the proprietor’s drawings.
approach terminal
barrier
departure terminal
A departure terminal can
only be used if located
outside the clear zone of
approach terminal
barrier
departure terminal
A departure terminal can
only be used if located
outside the clear zone of
Summary of Contents for Ezy-Guard HC
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