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18.104.22.168 Physical Barriers
Good defense employs concentric
rings of security. This term involves two thoughts in one term.
The first is the process of effective physical security creating
layered perimeters in circles that get tighter with each circle.
In addition to tighter rings, as the core is approached, certain (mind
& emotion) principles are applied. Once again, three points are
to be considered when applying physical security to a sensitive area.
For security zones they are:
- The outermost ring or perimeter should
be the first line of defense and should contain the public activities.
Continuing inward, more security measures should be incorporated as
one approaches the private or high-risk areas.
- Prominent use of signage (symbolic
language), architectural elements and natural and man-made barriers
should be utilized to signify the transition from public to semi-private,
and finally, private space.
- Clear border definition should be provided
for the controlled space.
Further, there are territorial behavior
strategies that contribute to physical security. There are guidelines
for this aspect as well. These include:
- Create elements to reinforce the feeling of proprietorship
within an area. Use signage, reflecting the purpose of the area.
- The physical area should support legitimate users.
Architectural amenities should not attract undesirable behavior or
provide concealment points.
- Provide natural barriers for controlling activities
that conflict with the purpose of the area.
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