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page 92
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12.1.2. Spike Impact Direction
The
CLAWS
Spikes are designed to take a much larger impact in one direction. Thus, the
CLAWS
Spikes can be installed to take larger or more frequent impact in one direction.
In other words the spikes can be installed to face either towards oncoming tra
ffi
c
(similar) or face towards tra
ffi
c (opposing) trying to enter from the wrong direction
or lane.
There are four types of typical installations. Refer to Section 12, Figures 2 and 3 to
determine if the installation is left- or right-hand orientated.
Secondly; pay attention to the spike impact direction:
• Similar direction of travel
prevents vehicles from exiting whilst the boom pole is
still down (Normal direction of tra
ffi
c)
• Opposing direction of travel
prevents vehicles entering against the
fl
ow of tra
ffi
c
whilst the boom pole is down
FIGURE 6. RHS SIMILAR DIRECTION OF TRAVEL
FIGURE 4. SPIKE IMPACT DIRECTION - SIMILAR
FIGURE 5. SPIKE IMPACT DIRECTION - OPPOSING
Direction of travel
Road Level
Road Level
Direction of travel
el
el
Direction of
normal tra
ffi
c
fl
ow
INTRODUCTION
SECTION 12
Содержание CLAWS
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