September-October 2022 - 21

COVER STORY
conventional scanning systems, which
is crucial for managing peak times and
preventing delays.
The efficiency benefits of CT scanners
can be further enhanced when
combined with automated screening
lanes. The first airport in the U.S. to
introduce an automated screening lane
(ASL) with CT technology, coupled
with remote screening, was George
Bush Intercontinental Airport (IAH)
in Houston, in Terminal D. This
was made possible through TSA's
facilitation program - the Accessible
Property Screening System (APSS)
program - which it utilizes to test
and procure solutions outside the
TSA'S Qualified Product List (QPL)
in the field. Six of Smiths Detection's
HI-SCAN 6040 CTiX scanners were
deployed in Terminal C in 2018, with
United Airlines procuring midsize
ASLs through TSA's gifting program
to create a full-sized Checkpoint
Property Screening System (CPSS).
The installation of the CTiX scanners,
completed within just one year, has
increased throughput drastically - at
an average rate of approximately 200
passengers per hour and 330 per hour
during peak times. Not only has this
boosted operational efficiency, but has
resulted in cost savings, as IAH was
able to close the security checkpoint at
Terminal E earlier than planned for its
renovation, with Terminal C having
greater capacity for passengers.
Screening at a Distance
Whilst CT scanners are increasingly
adopted, centralized networking or
remote image evaluation represents
a newer frontier. Typically deployed
for hold baggage screening systems,
remote screening is not yet widely
used for airport passenger checkpoints.
However, it promises significant
efficiency benefits for major
airport hubs which deal with large
passenger traffic.
With centralized image evaluation,
X-ray images taken from across
an airport are sent to analysts based
in a remote location away from the
busy checkpoints - allowing operators
to make faster and more accurate
decisions to divert scans which require
further inspection and bag searches.
This helps with creating a smoother
flow through the checkpoint and
prevent the build-up of queues.
A key benefit of centralized networking
is " multiplexing, " which
enables a flexible ratio of operators
to security lanes so resources can be
optimized to meet demand and operational
objectives. Networked images
are collected from all security lanes
across the airport and delivered to
the next available operator - making
more efficient use of staff resources as
images from both quiet and very busy
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September-October 2022

Table of Contents for the Digital Edition of September-October 2022
