AST September 2018 'ASTORS' Showcase Edition Sep 2018 Final (9.18.18) | Page 29

traffic
transaction) with cre-
Volume (per
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dentials presented (biometrics,
RFID cards, etc.). For example
tailgaters and piggybackers are
singled out to be addressed by
security staff.
of engineered pedestrian
en-
September 2018 Edition
trance control and therefore
well addresses the second con-
cept of physical security design.
Delay.
In a security revolving door or se cu- If an attack or breach is in prog-
rity portal the detection is often over-
ress, security professionals want
head but still detects and manages
to delay the situation to allow for
the traffic passing through.
security response to the situa-
This detection is a key feature tion.
Optical turnstiles are designed with a system using electronic beams and infra-red
arrays to detect and manage authorized traffic – while alerting to unauthorized users
(tailgaters-piggybackers). (Courtesy of Automatic Systems America)
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