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2.3.
Barrier Performance
2.3.1.
Point of Need
The tested length of Defender 100LDS™ is twenty (20) barrier segments or 78.0m. The TAU-II
end terminal is a Non-Gating re-directive terminal which establishes the length of need
location at the nose of the TAU-II end terminal. If an installation is to be less than 78 m,
contact Safe Barriers for further advice.
Trailing Terminal
(may be outside, inside or partially within the
length of need, see terminal restrictions)
Trailing point
of need
Leading impact angle from direction 2, a
Two directions
Figure 2.3: Point of Need Diagram
2.3.2.
Length of Need Deflection
The following table outlines the clear zone requirements for each installation type and each
testing requirement. These values can be used during the design process to ensure safe and
adequate clearance is catered for.
Table 2.1: Design Deflection Table
MASH16 Deflection Table
Defender 100LDS™
Test Level 3
2,270 kg Pickup Truck @
o
25
The above deflection value is the tested deflection on the Length of Need of the Defender
100LDS™ anchored at every second barrier to a maximum of 9.15 metres between
intermediate anchors.
Defender 100LDS™ – Product Manual Version 1.4
Safe Barriers Pte Ltd
Direction of travel (2)
Direction of travel (1)
Offset to travel lane
Length of need
Hazard or
Work zone
First possible point of
contact from direction 2
100kph
0.93
Leading Terminal
(may be outside, inside or partially within the
length of need, see terminal restrictions)
Safety Barrier
Leading impact angle from direction 1, a
First possible point of
contact from direction 1
Leading point
of need
See road authority
guidelines for angles
11
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