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The PIDS should provide for the 24/7 (day/night) assessment of all alarm and alert events to
determine whether an alarm is valid (and not a nuisance or false alarm), and details about the alarm
(i.e. what and how many).
The PIDS should provide automatic and simultaneous display of multiple live and/or recorded
event scenes associated with an individual alarm/alert.
The PIDS should provide automatic and/or manual selection of any alarm/detection or
alert/observation area for display at any time.
The PIDS should provide display the alarm zones in a timeframe that enables the operator to assess
the alarm/alert cause, including pre-alarm/alert activity for a programmable period prior to the
alarm event. Recorded activity from the associated camera shall be displayed in a window or
monitor adjacent to the live display.
The PIDS should provide for automatic and manual operation of pan-tilt-zoom cameras, based on
permissions and priority.
The PIDS should allow masking of non-critical viewing areas.
The PIDS should allow for recording, authentication, archiving, and retrieval of all alarm/alert
PIDS performance requirements describe how well the system must operate. Below is a listing of typical
PIDS Performance Requirements.
A 24 hour, 7 day/week integrated intrusion detection, assessment, and tracking system.
A system (not individual components) with a high Probability of Detection (Pd). In all cases, the
PIDS should have a probability of detection appropriate to the threat. Further guidance on Pd is
identified in Section 126.96.36.199, Performance Definitions.
A False Alarm Rate (FAR) and Nuisance Alarm Rate (NAR) that are sufficiently low to be
manageable and not redirect resources from critical security tasks. In all cases, the PIDS should
have False and Nuisance Alarm Rates (FAR and NAR) appropriate to the threat. Further guidance
on FAR and NAR is identified in Section 188.8.131.52, performance definitions.
The PIDS should detect targets with the following characteristics: an animate object (human or
vehicle) having at least 75 lb. in weight and 4 cubic feet in volume (minimum - person crawling)
traversing across areas and lines of detection, situated around, along, and near the perimeter, and
moving through the protected zones.
A high system operational availability accompanied by a low Mean-Time-to-Repair (MTTR)
A system that supports integration and continued use of prior technology investments.
A system capable of encompassing future integration of additional sensors, communications,
command and control, and assessment technology.
The system should support phased integration and future upgrades to accommodate expansion and
incorporation of new technology hardware, firmware and software where appropriate.
System Design Considerations
As noted above, the intrusion detection system design should be driven by operational and functional
requirements in the context of the assessed threat environment, policy framework, and concept of
operations. A structured process that employs an overall integrating architecture and rigorous requirements
traceability ensures a comprehensive solution approach. The design must meet stated performance criteria
while allowing for factors and constraints unique to an individual airport operating environment. Most
importantly, the design must be flexible and adaptable in the face of a constantly changing security
environment and where possible offer a return on investment to the airport.
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