Case Studies

Reality Capture and Infrastructure Mapping at a Historic Courthouse

GPRS delivered comprehensive digital as-built documentation of a complex, historic courthouse to equip the architect with precise data to plan renovations, prevent costly construction errors, and comply with preservation regulations.
GPRS partnered with NM Building Enclosure Architecture to support renovations at the historic Lea County Courthouse. Through utility locating, concrete scanning, and reality capture, GPRS delivered comprehensive as-built data and generated CAD and BIM models that mapped underground utilities, concrete reinforcement, and all structural, architectural, and MEP systems, providing the architectural team with the insights needed to plan renovations with confidence.
GPRS partnered with NM Building Enclosure Architecture to support renovations at the historic Lea County Courthouse, delivering point cloud data, digital and PDF utility maps, 2D CAD drawings, 3D BIM models, TruViews, and a virtual tour, all accessible through SiteMap®, GPRS’ cloud-based GIS software platform.
Highlights THE BOTTOM LINE GPRS delivered comprehensive digital as-built documentation of a complex, historic courthouse to equip the architect with precise data to plan renovations, prevent costly construction errors, and comply with preservation regulations. INDUSTRY Historical Renovation SERVICE Utility Locating, Concrete Scanning, 3D Laser Scanning, Mapping & Modeling LOCATION Lovington, New Mexico PM Insight “Accurate as-built data empowered the architect to make informed decisions and plan long-term infrastructure improvements, all easily accessed through SiteMap, GPRS’ cloud-based GIS platform.” Emily Crego, GPRS Mapping & Modeling Team Deliverables Point Cloud, Digital and PDF Utility Maps, 2D CAD Drawings, 3D BIM Models, TruView, Virtual Tour, SiteMap® Task GPRS partnered with NM Building Enclosure Architecture to support renovations at the historic Lea County Courthouse. Through utility locating, concrete scanning, and reality capture, GPRS delivered comprehensive as-built data and generated CAD and BIM models that mapped underground utilities, concrete reinforcement, and all structural, architectural, and MEP systems, providing the architectural team with the insights needed to plan renovations with confidence. PROBLEM Built in 1936 and last updated in 1957, the courthouse is a designated historic property that required state approval for renovation under New Mexico’s preservation laws Renovations were needed to expand office space and upgrade public-facing facilities to meet departmental growth The architect needed to document the aging infrastructure, including boiler room, plumbing, electrical panels, and elevators in need of replacement The building footprint was complex, spanning 5 floors and 70,000 square feet, including a basement and three roof sections There were no up-to-date records of the building’s layout and infrastructure, which complicated design coordination and increased construction conflicts ‍ Solution GPRS scanned the block surrounding the courthouse using ground penetrating radar to locate & map underground utilities, including electric, communication, gas, water, sewer, irrigation, and unidentified lines Four 4'x4' concrete areas in front of elevators in the building were GPR scanned to assess slab conditions and detect embedded features such as rebar and conduit Full-color 3D laser scans documented the courthouse’s interior, exterior, and roof structures, capturing all architectural, structural, and MEP components, as well as field markings from utility locating and concrete scans Scan data was converted into detailed 2D CAD drawings and Architectural/Structural & MEP 3D Revit models All maps, drawings, and models were securely uploaded to SiteMap®, GPRS’ cloud-based GIS software platform ‍ Benefits The architect received accurate records of the building’s layout and infrastructure, minimizing guesswork and reducing construction risk Utility markings and concrete scan data helped to prevent costly strikes, structural damage, and delays during future work Captured data facilitated upgrades, space planning, and maintenance across all five floors The comprehensive above and below-ground documentation available 24/7 in SiteMap, guided safe renovations, streamlined maintenance, and will inform planning for the life of the historic building
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As-Built Creation
Concrete Scanning
Floor Plan Creation
Mapping & Modeling
Utility Locating

Reality Capture of Six Hospital Parking Garages for Wayfinding

Reality capture provides the precise spatial data needed to power wayfinding apps and enable real-time AR navigation to help users confidently navigate complex indoor and outdoor environments.
GPRS captured precise digital representations of six uniquely structured parking garages at a healthcare campus in Atlanta, enabling a software company to build a wayfinding app that improved navigation for patients and visitors.
Reality capture provides the precise spatial data needed to power wayfinding apps and enable real-time AR navigation to help users confidently navigate complex indoor and outdoor environments.
Highlights THE BOTTOM LINE Reality capture provides the precise spatial data needed to power wayfinding apps and enable real-time AR navigation to help users confidently navigate complex indoor and outdoor environments. INDUSTRY Healthcare SERVICE Reality Capture LOCATION Altanta, Georgia PM Insight Reality capture plays a significant role in enhancing wayfinding, particularly in complex indoor or large outdoor environments. It allows for the creation of accurate digital representations of real-world spaces that can then be used to develop intuitive and efficient navigation systems. Deliverables 3D BIM Model, 2D CAD Drawings, Virtual Tour PROJECT APPLICATION Reality Capture for Wayfinding Task GPRS captured accurate digital representations for six uniquely structured parking garages at Emory St. Joseph’s Hospital in Atlanta and integrated data into a wayfinding app to improve patient and visitor navigation across the healthcare campus. PROBLEM The hospital campus featured multiple parking structures with inconsistent layouts, some aboveground, some underground, and some interconnected across levels. Patients and visitors frequently experienced difficulty navigating from their vehicles to their medical offices, resulting in frustration, delays, and operational strain on staff. The total space 3D scanned was 1,681,500 SF and included the following parking garages within the scope of work. Green Parking Garage - 6 Levels - 510,000 SF Blue Parking Garage - 2 Levels - 160,500 SF Purple Parking Garage - 5 Levels - 222,500 SF Gold Parking Garage - 3 Levels - 271,000 SF North Employee Garage - 6 Levels - 285,000 SF South Employee Garage - 5 levels - 232,500 SF ‍ Solution Before beginning reality capture, the team conducted walkthroughs of each parking deck with the client to confirm the scope and develop scanning strategies tailored to the vast and complex layouts, ensuring no disruption to hospital operations. In under a week, a three-person GPRS team used the Matterport Pro 3 and Leica RTC360 laser scanners to capture every parking level, space, stairway, and hospital access point. Accurate reality capture data was used to create individual 3D BIM models for each parking garage and a unified campus model, which served as the foundation for generating 2D plans and immersive virtual tours. Deliverables were integrated into a mobile wayfinding app with AR capabilities and indoor positioning to guide users through the hospital campus with ease. ‍ Benefits Reality capture provides the precise spatial data needed to power wayfinding apps, saving parking locations and enabling real-time AR navigation that helps users confidently navigate complex indoor and outdoor environments. The 3D BIM model forms the foundation for accurate routing, orientation, and destination mapping. Reality capture supports augmented reality (AR) overlays by aligning digital cues, like directional arrows or points of interest, with physical features in real-world spaces. Accurate wayfinding reduced reliance on staff for directions, improving hospital operational efficiency. As-built CAD and BIM documentation captured spatial data of the complex parking structures and can be used to support future planning and maintenance.
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3D Laser Scanning
As-Built Creation
Floor Plan Creation
Mapping & Modeling
Virtual Tours

3D Laser Scanning a Transmitter Facility To Develop A 3D Model

3D laser scanning delivers accurate as-built data and 3D BIM models of existing infrastructure to aid in upgrading transmitter facilities. GPRS data helped the engineering firm design upgrades, minimize interference with existing systems, and ensure smooth construction coordination.
GPRS provided 3D laser scanning and BIM modeling services for a transmitter facility in Jacksonville, Florida. Complete data capture was needed for the exterior and interior of the facility, including a 60 ft. x 80 ft. mechanical room.
GPRS provided 3D laser scanning and BIM modeling services for a transmitter facility in Jacksonville, Florida. Complete data capture was needed for the exterior and interior of the facility, including a 60 ft. x 80 ft. mechanical room.
THE BOTTOM LINE 3D laser scanning delivers accurate as-built data and 3D BIM models of existing infrastructure to aid in upgrading transmitter facilities. GPRS data helped the engineering firm design upgrades, minimize interference with existing systems, and ensure smooth construction coordination. INDUSTRY Telecommunications SERVICE 3D Laser Scanning, Mapping & Modeling LOCATION Jacksonville, Florida Deliverables Point Cloud (.rcs files), 3D Revit model, and TruViews Task GPRS provided 3D laser scanning and BIM modeling services for a transmitter facility in Jacksonville, Florida. Complete data capture was needed for the exterior and interior of the facility, including a 60 ft. x 80 ft. mechanical room. PROBLEM The engineering firm needed to document accurate measurements of the existing space and equipment to successfully plan design changes mandated by the FCC Upgrading a mechanical room requires careful planning and coordination due to space constraints, existing infrastructure, and code requirements The mechanical room was filled with high-power equipment and operations could not be disturbed ‍ Solution GPRS 3D laser scanned the interior and exterior of the transmitter facility in one day without interrupting station activities A Leica laser scanner was used to document the tower and infrastructure, including transmission lines, antenna system, satellite dishes, control building, and equipment; minimizing exposure to high-voltage equipment and the risk of electrical shock Multiple scans were taken from various viewpoints for accurate tower data capture, then registered and processed to create a seamless 3D model Reality capture via 3D laser scanning captured precise dimensions, layouts, and locations of existing towers, buildings, and equipment, providing comprehensive visualization of the transmitter facility The 3D Revit model created by GPRS can be shared with all stakeholders, streamlining communication and collaboration throughout the project ‍ Benefits As-built site information was quickly captured with a Leica laser scanner, including areas that would normally be too tall or dangerous to obtain data A 3D BIM model allows the client to virtually plan transmitter facility upgrades and identify potential clashes between new equipment and existing infrastructure before construction begins Accurate as-built data minimizes errors and rework for engineers, leading to a more efficient and cost-effective project 3D laser scanning provides as-built record drawings and models for architectural, mechanical, and electrical engineering, broadcast RF engineering, FCC filings, municipal approvals, and permitting
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Real Estate Developer Needed 2D Floor Plans and 3D Model for Renovation

3D laser scanning provided precise layout and dimensions of existing architectural, structural, and MEP systems for the developer to convert the nursing home into residential housing.
Provide accurate as-built data of an assisted living and nursing home facility purchased at an auction. GPRS 3D laser scanning services documented the 250,000 sq. ft. building and its systems to create 2D floor plans and a 3D BIM model prior to its renovation into residential housing.
3D laser scanning provided precise layout and dimensions of existing architectural, structural, and MEP systems for the developer to convert the nursing home into residential housing.
THE BOTTOM LINE 3D laser scanning provided precise layout and dimensions of existing architectural, structural, and MEP systems for the developer to convert the nursing home into residential housing. INDUSTRY Commercial Real Estate SERVICE 3D Laser Scanning, Mapping & Modeling LOCATION Lawrenceville, Illinois Deliverables Colorized Point Cloud, 2D AutoCAD Drawings, 3D BIM Model Task Provide accurate as-built data of an assisted living and nursing home facility purchased at an auction. GPRS 3D laser scanning services documented the 250,000 sq. ft. building and its systems to create 2D floor plans and a 3D BIM model prior to its renovation into residential housing. PROBLEM The real estate developer, based in Manhattan, New York, purchased the property at auction, sight unseen, and received no as-built floor plans or architectural records from the seller The developer required as-builts of the existing building conditions to avoid costly delays and rework during renovations of the 260-room facility The lack of as-built floor plans risks difficulties in future renovations due to unknown locations of critical systems like wiring, plumbing, and ductwork ‍ Solution The Leica P40, Leica RTC 360, and NavVis VLX mobile mapping system were used to capture existing site conditions GPRS captured the precise layout of the facility, including the front-of-house (lobby, administration, dining, activity areas), back-of-house (laundry, kitchen, storage and staff areas), nurse stations, resident wings, hallways, doors, windows, stairs, mechanical rooms, and outdoor spaces The client requested a colorized point cloud, 2D AutoCAD drawings with annotations, including floor plans and exterior elevations, and reflected ceiling plans with elevations A 3D Revit model was delivered containing accurate information for every room, hallway, door, window, stairway, elevator, and mechanical space in the building. Model sections can be extracted/cut at any time for precise visualization The project was delivered in SiteMap®, a cloud-based data management and collaboration platform. SiteMap can turn terrestrial laser scan data into cloud- and BIM-compatible reality capture data that can be shared, viewed, annotated, measured, or distributed for scan-to-BIM workflows ‍ Benefits GPRS and the developer defined the project scope and specified the equipment and deliverables needed to successfully complete this project 3D laser scanning provided precise layout and dimensions of existing architectural, structural, and MEP systems for the developer to plan building renovations and modifications while “gutting the building down to the studs” GPRS provided support services after the project was delivered. We consulted with the developer on how to best use the point cloud, 2D floor plans, and 3D model
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