Airport Business - 33

TECHNOLOGY
The new and improved
Concourse A at Charlotte
Douglas International Airport
(CLT), the first completed
project under the Destination
CLT initiative.

Elevating efficiency

An extensive, four-year undertaking,
CLT's EVR project is widening the
existing four-lane terminal approach
road to 16 lanes to create more badly
needed space for vehicle drop offs and
RICH TAYLOR PHOTOGRAPHY
pickups. Five new upper lanes of the
EVR and four temporary passenger
walkways were opened in April 2019,
marking the completion of Phase 2 of
the $50 million initiative. The final
stage of the project is scheduled to finish
in the fall of 2019.
Initial construction began in
November 2015 and CES crews were
on site from day one. Every day for three
years, field teams were using their survey
equipment for installing control points,
and staking out curbs, piers, girders,
columns, as-builts and bridge bents,
which are structural elements used to
support girders. They also used their
technology to locate existing storm and
sewer infrastructure and stake out new
construction points for rerouting and
replacing those systems.
"We had extremely tight tolerances
to ensure all the pre-fabricated steel
Assisted by robotic total stations, beams fit correctly and were at the
Trimble DiNi Digital Levels and TSC3
correct height and horizontal plane
and TSC7 data collectors, CES field
dictated by the design," says Hudson.
teams have been providing all aspects "All of our measurements had to be
of construction staking.
exact."
In the latter stage of Phase 2, CES
"For all of these projects, we've had
was asked to perform as-built surveys
to ensure that all of our horizontal and
vertical points are accurate to within
of the support columns for the elevated
roadways and bridge ramps. As they
0.01 of a foot," says Hudson. "That's
not easy to consistently maintain when
had just acquired an SX10, the timing
you have such a chaotic, machine-heavy
proved opportune.
and sometimes cramped work site. But
CES had been doing column
despite the challenging and unexpected
as-builts with their traditional
conditions, we've been able to stay on
equipment and it was painstaking. To
spec every day."
capture the circular columns, crews
And since the summer of 2018, they
needed to measure the circumference,
have been able to extend the breadth and
shoot multiple points around the
detail of their data through the addition
column, bring that data back to the
of Trimble's SX10, a scanning total
office and then calculate the "best fit
station that combines surveying, imaging
circle" to indicate the column center.
and scanning. That functionality has
Using the scanning function of the
proved particularly useful for two other
SX10 allowed them to capture the entire
massive airport projects: the Elevated
column at once.
"In addition to the time-consuming
Roadway (EVR) and the SouthCrossfield Taxiway (SCT).
process, traditional techniques require
"The SX10 has become instrumental
a prism, which can introduce some
on CLT projects," says Hudson. "It's not
error because of its thickness," says
only giving us the f lexibility we need, Hudson. "So you have to perform
it's reinventing some of our historically
many calculations and checks to ensure
traditional survey approaches."
you're precise. With scanning, you get

the actual surface so it's easy to pinpoint
the column center."
With the SX10, a field team opted
to scan seven remaining bridge columns
- the instrument's debut project at CLT.
After re-establishing site control
- given the confined, active work
site, they had to verify control every
day - the two-person crew set the
scanning total station on a control
point and scanned the first column 100
ft away. They performed that routine
three more times and in less than three
hours, they captured 3D, 360-degree
views of each of the seven columns at
an accuracy of 0.01 ft. They saved the
data on their TSC7 controller using
compatible software, which combines
optical, scanning, and GNSS data plus
images in the same job.
"Scanning eliminated the need for
setting traditional targets and provided
a safer working environment for our
crew," says Hudson. "And we captured
substantially more data - millions of
data points - in half the time it takes
with the conventional methods."
Back in the office, Hudson input
the point cloud into Trimble Business
Center (TBC) software for processing
and quality control. He then exported
the 3D data into AutoCAD to produce
a final drawing showing the column
centerline locations. Per the client's
request, they delivered the drawing as
a PDF.
Based on the success of their first
experience with the instrument, it
wasn't long before Hudson tapped it to
resolve another challenge at CLT.

Providing other
support
In January 2019, one of the primary
design-consultants on CLT needed
survey support for CLT's ambitious
South-Crossfield Taxiway (SCT) project,
a new 4,000-foot-long taxiway, along
with a bridge, that will connect the
central and east side of the airfield.
CES worked with the consultant
company on previous projects for the
City of Charlotte. . Based on that success,
the company selected CES for the SCT
project.
CES' field crews were tasked to
create a topographic survey of the entire
site, which consists of dense, wooded

AUGUST | SEPTEMBER 2020 \ AVIATIONPROS.COM / 33


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Airport Business

Table of Contents for the Digital Edition of Airport Business

Inside the Fence: Statistically Speaking...
Industry Update
The FBO Customer Experience Beyond COVID-19
Switching Seats: COVID-19's Impact on the Terminal
Data Security and Privacy at Commercial Airports
A Private Affair
Creating Quality Customer Service
Designing the 'Airport of the Future'
Will Peer-to-Peer Car Sharing be the Next Disruptor?
An Airport Takes Off
Totally Boggus: Clearing the Air
Proactive Technology Strategies for Airlines to Succeed Post COVID-19
Looking to Upgrade Your Sustainability Practices? Ask These Questions First
Product Profile: Runway Reliability - Stable Soils Make the Difference
Airport Business - 1
Airport Business - 2
Airport Business - 3
Airport Business - 4
Airport Business - 5
Airport Business - Inside the Fence: Statistically Speaking...
Airport Business - 7
Airport Business - Industry Update
Airport Business - 9
Airport Business - The FBO Customer Experience Beyond COVID-19
Airport Business - 11
Airport Business - Switching Seats: COVID-19's Impact on the Terminal
Airport Business - 13
Airport Business - 14
Airport Business - 15
Airport Business - 16
Airport Business - 17
Airport Business - Data Security and Privacy at Commercial Airports
Airport Business - 19
Airport Business - A Private Affair
Airport Business - 21
Airport Business - 22
Airport Business - 23
Airport Business - 24
Airport Business - 25
Airport Business - Creating Quality Customer Service
Airport Business - 27
Airport Business - Designing the 'Airport of the Future'
Airport Business - 29
Airport Business - Will Peer-to-Peer Car Sharing be the Next Disruptor?
Airport Business - 31
Airport Business - An Airport Takes Off
Airport Business - 33
Airport Business - 34
Airport Business - Totally Boggus: Clearing the Air
Airport Business - Proactive Technology Strategies for Airlines to Succeed Post COVID-19
Airport Business - 37
Airport Business - Looking to Upgrade Your Sustainability Practices? Ask These Questions First
Airport Business - 39
Airport Business - Product Profile: Runway Reliability - Stable Soils Make the Difference
Airport Business - 41
Airport Business - 42
Airport Business - 43
Airport Business - 44
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