By Romine Deming

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Additional info for Advances in Security Technology. Selected Papers of the Carnahan Conferences on Security Technology 1983–1985

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There is a time period after the system is fired until the coverage provided by the delay medium is sufficient to protect the target. 5 minutes, for our example. Because of this coverage delay, assessment is of little value in the target area, except to monitor the state of the activated barrier system. Once deployed, the activated barrier (when combined with physical restraints) can delay an adversary for 30 or more minutes. At any time, there are three possible responses for the operator to an alarm: • None—leave activated barrier system in current mode (standby, arm, fire); • Arm the system; or • Fire the system.

43 44 Security Barrier Technology 1 to or inside of the target area. The example given here is for the latter type of installation in a generic PPS, where this system is the last barrier to delay unauthorized access to the target. Similar procedures can be developed for choke-point applications along access paths. The decision to deploy the activated barrier is usually based on an accurate assessment of alarms. Having completed an assessment, the operator follows established barrier-deployment procedures that maximize the protection provided the target, while minimizing the possibility of an incorrect deployment.

Advancements in detection technology have improved the efficiency of sensor components so that the probability of detection is nearly unity; layering of the sensors virtually assures detection. The improved training and equipping of the response force, particularly the addition of SWAT teams, ensures successful confrontation of the adversaries. Delay is the security feature that ties together detection and response to defeat the adversary. , doors, walls, and fences; improvements consisted of bigger, thicker, heavier, and more.

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