Defender 100LDS™ –
Product Manual Version 1.4
11
Safe Barriers Pte Ltd
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.
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 @
100kph
25
o
0.93
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.
Trailing point
of need
Leading point
of need
Direction of travel (2)
Direction of travel (1)
Safety Barrier
Hazard or
Work zone
Offset to travel lane
First possible point of
contact from direction 1
First possible point of
contact from direction 2
Leading impact angle from direction 2,
a
Length of need
Leading impact angle from direction 1, a
Two directions
Leading Terminal
(may be outside, inside or partially within the
length of need, see terminal restrictions)
Trailing Terminal
(may be outside, inside or partially within the
length of need, see terminal restrictions)
See road authority
guidelines for angles
