CEMP-ET
TI 804-01
1 July 1908
(11) Providing barriers to mitigate weapons and explosives effects.
(12) Providing exterior electronic security systems.
b. Vehicular Access. Where an identified threat indicates that vehicle control is
necessary, access may be limited to specific entry control points that may include the
following:
(1) Gate and/or gatehouse, vehicle barriers, or a combination of the two.
(2) Adequate room to permit search of vehicles without interfering with normal traffic
flow.
(3) Horizontal and vertical alignment of drives which force a reduction in speed at the
approach to the entry control point. Reduction of speed allows more reaction time to breaches
of security and reduce the size of vehicle barriers required to stop a vehicle. Reaction time
and the location of the barrier also affect whether there is sufficient time to deploy a barrier in
response to a threat. Access drives and parking areas may need to be separated from
facilities by sufficient distance to mitigate the threat of vehicle bombs.
c. Site Features. In an area where there is an identified threat, topography and
vegetation should not obstruct views of surrounding areas.
(1) Topography, vegetation, water and walls can be used to:
(a) Slow movement towards exposed building faces.
(b) Limit exposure of personnel moving between buildings and parking areas.
(c) Block sightliness from vantage points.
(2) Perimeter walls may be used to mitigate blast effects from an explosion, but they
must be carefully located with respect to the protected facility. If the perimeter wall is too far away
from the facility, it may provide no benefit. If the wall is too close, it may compound the blast.
4-12
Previous Page
