INGAL Ezy-Guard 4, Product Manual

Page: 5 / 34

Roadside Safety Barrier
5
Release 07/22b
5.0 Features and Benefits
5.1 Fully Compliant to MASH TL3 & NCHRP-350 TL4
Ezy-Guard 4, a member of the Ezy-Guard family, is fully
compliant to MASH TL3 and NCHRP-350 TL4.
The MASH TL3 test condition represents a 13% increase
in energy when compared to NCHRP 350 Test Level 3
impacts.
The NCHRP-350 TL4 compliance demonstrates the
systems ability to contain and redirect the large 8000kg
truck, which has a higher centre of gravity compared to
the MASH TL3 pickup truck.
5.2 Rapid Installation & Repair
Ezy-Guard 4 installation can be up to twice as fast to
install than conventional guardrail barriers and unlike
cable barrier systems, no concrete is required.
The Ezy-Guard 4 design uses fewer components and
features 1,650mm Z-posts that are rapidly driven into the
ground. The Z-post embedment depth is just 873mm, a
significant reduction when compared to other guardrail
posts. This reduces installation time providing significant
cost savings.
Since the Z-posts are designed to yield by bending near
ground level, damaged posts can be removed easily which
reduces the time spent by work crews on the roadside.
5.3 Narrow Width
With a system width of just 200mm, Ezy-Guard 4 is
significantly narrower than traditional guardrail barriers
that incorporate the use of blocking pieces. Ezy-Guard 4
conserves valuable formation width and allows a greater
recovery width to be provided for errant vehicles.
NCHRP-350 TL4
MASH TL3
Figure 3: Ezy-Guard 4 Width Comparison
200mm
1800m
m
385mm
G4 W Beam
1800m
m
440mm
Type B Guardfence
Ground
surface
Double sided W-Beam
730m
m
310mm
1600mm
730mm
1650mm
787mm