Ayres Knowledge Center HD Scanning for Infrastructure | Page 4
HD SCANNING: THE APPLICATIONS
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The ability to quickly capture detailed information from HD
laser scanners makes this an important tool for surveying and
analyzing transportation infrastructure. The long-range capacity
of laser systems set up at strategic vantage points enables a
surveyor to effectively record precise measurements of hard-
to-reach locations. HD laser scanning is being effectively and
efficiently used for generating bridge clearance reports, asset
inventories, transportation design drawings, and quality control
studies of as-built construction.
Substations and Electric Utilities
Electrical utility owners and designers use HD laser scanning for
asset inventory on existing facilities, future expansion capacity,
existing structural conditions and analysis, and as-built collection
for maintenance. HD laser scan data can be integrated into
existing aerial LiDAR data to create a more accurate and holistic
data set. Collection of data using HD laser scanning greatly
reduces the need for a facility to be taken out of service for
data collection and allows entire sites to be captured safely and
Feature extraction and modeling of assets for industrial
building information modeling (BIM) is supported by precise,
high-definition 3-D laser scanning. These compact systems
can be operated in confined spaces and from multiple viewing
perspectives to capture HD details of mechanical, electric, and
piping (MEP) infrastructure. 3-D models developed from the laser
scans are being used by mechanical and electrical engineers to
perform space and load-bearing capacity analysis for expansion.
Scans can be completed without taking facilities offline.
The low-impact application of HD laser scanning mitigates safety
and damage concerns as architects document the existing site
conditions before restoration and rehabilitation projects. The
highly detailed information captured by these systems also
reduces costly site revisits and enables remote quantification
of assets and features. The ability to measure crucial “one off”
items on existing buildings for replication in the design process
greatly increases the quality and accuracy of the end product.
Architectural designers and MEP engineering staff have the ability
to design in 3-D and run clash detection for potential conflicts.
4 | SCANNING FOR INFRASTRUCTURE
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PROJECT: RIVER WALL & HARBOR PARK
The City of Kewaunee, Wisconsin, hired Ayres Associates to provide preliminary design services for the Kewaunee River
sea wall and Harbor Park’s boardwalk, parking lot, and associated amenities.
Restoration of the Kewaunee River shoreline will be designed in accordance with the input of stakeholders. The proposed
work includes removing the sea wall and replacing it with an anchored sheet pile wall. Harbor Park improvements are
expected to include approximately 1,350 feet of boardwalk leading out to the lighthouse, along with six fishing platforms,
pedestrian lighting, parking lot improvements, and associated landscaping.
By fusing multiple data collection
methods (remote sensing, HD
scanning, and traditional survey)
Ayres was able to very precisely
document the existing conditions
of the entire project area in 3-D,
including the harbor bottom and
associated wall. The use of HD
scanning will enable planners and
design staff to effectively integrate
new design elements into the
backdrop of the existing landscape
and built environment.
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