Iowa Department of Transport uses SLAM to create 3D models of salt stockpiles
10 mins per scan
Words by Tina Greensfield | Iowa DOT
At Iowa State DOT (Department of Transport) it is our job to make sure over 24,000 miles of road remains clear and safe to use in winter. We have 109 maintenance areas across the state where stockpiles of salt are kept for distribution. Each facility can each hold up to 1200 tonnes.
Throughout winter salt is loaded onto trucks and spread on roads to stop the surface from freezing. Pay loads are measured in weight as salt is loaded onto spreading trucks and supplies are depleted. But as the salt is used, there is a clear discrepancy between the volume of salt in the shed and the paper records – it is not reliable to just look inside a half-empty shed and assess how much material remains.
If volume of salt is too low or we don’t know how much is available, we may find ourselves forced to make snap decisions about redistribution which is both costly to the state and inconvenient to residents and businesses alike.
We needed another solution and following a few severe winters where salt reserves around the country ran out, the Great Lakes froze and shipments were halted we were determined to invest in a reliable measuring process for managing stockpiles in future, which led us to a GeoSLAM volumes solution.
“In terms of speed and accuracy, this was a real game changer for us!“
Using the handheld SLAM device, we can produce a three-dimensional model of the stockpile in just a few minutes. We have never experienced this level of accuracy before and capturing data was as easy as surveying the site with the naked eye.
The surface of the stockpile is very uneven with lumps on one side and big cliffs on the other where loaders have dug-out salt for spreading, in the past our ‘best guess’ used to involve looking at the stockpile against some markers on the walls of the shed which provided limited accuracy to say the least, so this was a real game changer for us.
Data is then processed using GeoSLAM Hub and imported to the volumes software. As the granules vary in size, we apply a bulk density value as well as defining a floor and perimeter of each pile calculate the total volume of the stockpile in tonnes.
From start to end, the entire process took around twenty minutes. We now have depot staff going out and scanning the stockpiles regularly. This new level of insight means we don’t have to worry about compromising road users’ safety across the state of Iowa as we always know what volume of salt we have available to use.
Glencore uses GeoSLAM to assess risk in underground base metal mine
15 mins per scan
Base metal mine
Kidd Mine, Glencore | Natural resource company
When creating underground mapping for mines, mining engineers are often faced with having to work in hazardous and rugged environments, in difficult-to-access spaces and without GPS coverage. In order to address these challenges, mining companies are continuously searching for ways to plan efficient site operations, streamline tunnelling processes and optimise production and personnel safety.
Kidd Mine, an underground base metal mine in Canada and the world’s deepest copper/ zinc mine, epitomises this by adopting new and advanced survey technology. With the aid of GeoSLAM’s 3D mapping technology, the mine is able to assess risk associated with ground and support systems failure, magnitude seismic events, large-scale deformation or rock bursts associated with mining at extreme depths.
Built for harsh and demanding environments, GeoSLAM’s handheld laser scanners are robust, splash-proof and dust-tight (with ratings up to IP64 level). They’re adaptable to any environment – inside or outside, in daylight and darkness – without the need for GPS.
Lightweight and easy-to-use, you can walk and survey accessible areas quickly and easily – even those which are normally off-limits. For more confined or unreachable places, they can be attached to trolleys or mine vehicles for remote monitoring.
“It’s critical data that will help us lower the risk to personnel and keep mines safer“
David Counter, a senior ground control engineer at the Kidd Mine, emphasised the importance of using a hand-held laser scanning device to map the underground areas at the mine. “It produces a continuous 3D animation image of whatever underground areas are being scanned as the user walks along the drift. This allows the mine to map out problem areas and to carry out ground support rehabilitation in those areas.”
“The ZEB Revo provides a background dataset that can be used for comparative purposes if a future high-magnitude seismic event occurs or for determining how much static deformation has been occurring due to regional mine closure over time.”
Despite needing to rapidly map mines under intense time constraints, traditional underground survey techniques have proved to be slow. Mine engineers and surveyors all need access to user friendly technology that is easy to install and use, but is robust and reliable enough to do the job quickly and accurately. Within minutes anyone can be using a GeoSLAM scanner and immediately start creating a 3D point cloud of the area. Data is collected continuously while walking the survey area – with no time-consuming or cumbersome set-up required.
GeoSLAM’s award-winning software instantly turns data into actionable 3D information. So, you can rapidly gain insight into rock mass behaviour and map out deformations in rock walls & complex tunnel profiles. Plus, accelerated survey workflows help you deliver productivity and efficiency improvements, at the same time as helping you hit your zero-harm targets.
“There is a sound basis for SLAM laser technology to define areas where the ground support systems need to be replaced or rehabilitated,” Counter concluded.
Laser scanning in the busy environment of Arc de Triomphe
Arc de Triomphe
Geotopo | Words by Samuel Duhaussay
Alongside our work in land management, engineering and rail sectors, our teams dedicate time for architecture and heritage projects, working to preserve just some of the 40,000 listed historic monuments in France alone. As a geospatial technology specialist, we are aware of the great significance many of our historical monuments hold.
One of the most famous, located at the tip of the Champs-Elysees in central Paris, is the Arc de Triomphe. In order to demonstrate to the Parisian crowds the precision and speed of scanning technology, we enlisted the help of GeoSLAM’s ZEB Horizon.
Recognised as the centre of Paris for its position on the iconic roundabout, and measuring 50m tall, 45m wide and 22m deep, access to the Arc is limited. Yet with the ZEB Horizon and its ability to capture distant elements at a range of 100 metres, the handheld scanner proved to be an effective companion for the project.
“The ZEB Horizon was not only fast, but discreet and easy to operate in such a busy environment“
With approximately 600,000 visitors per year, accessing the site with a static scanner would be difficult. In order to carry out the survey, the operator walked around the Arc, returning to complete a figure of eight shape, all in one fluid motion and after ten minutes data capture was complete.
Achieving the same results with a static scanner would have taken considerably longer due to the numerous set-ups and the time it takes to complete each scan. The ZEB Horizon was not only fast, but discreet and easy to operate in such a busy environment.
GeoSLAM technology was at the top of our list to scan the Arc, primarily due to its accuracy, ‘on-the-go’ method of data collection and fast application. In just 10 minutes of data capture, we obtained 10 million cloud points with 2cm accuracy – together depicting the engravings of war victories as designed by architect, Guillaume Abel Blouet in 1833.
Its ability to capture 300,000 points per second made the ZEB Horizon our technology of choice. Understanding the project’s restrictions due to location and popularity, we’re delighted with the outcome, which demonstrates the importance of mobile mapping devices to historical buildings such as this.
ZEB Horizon used to Capture data on Croatia’s forest to understand biomass
1km in length
Geocentar | Words by Luka Zalovic
“47% of Croatia’s total land area is covered by forest, an area of approximately 25,000km2 . Management of these vast valuable assets is a key industry in Croatia and across its central European neighbours. As well as managing the biodiversity and sustainability of the forests, it is important for commercial logging companies to assess the quality and biomass of the forests for responsible timber sales. This assessment is a growing need – every year, Croatia adds 10.5 million m3 of forestry to its stock.
Methods of forestry management typically involve measuring the height, diameter and relative position of trees using equipment such as tape measures, ultrasound instruments, total stations and terrestrial laser scanners. However, there are limitations to these methods – they’re often time consuming, involve multiple setups and numerous members of staff to take the measurements (especially since forestry is usually in remote and difficult to access areas). Due to dense canopy cover, forests are usually GNSS-denied areas, and along with the uneven terrain, it can be difficult and time consuming to measure with terrestrial laser scanners.
Geocentar have a large client base in the forestry industry and upon delivery of our new ZEB Horizon mobile laser scanner, we decided to put the technology through its paces and see how it weighs up against other solutions for measuring biomass.
“The ZEB Horizon captures forestry data more accurately than traditional methods and eight times faster“
Visiting the Perivoj Zrinskih park, the ZEB Horizon was initialised on a flat surface before the operator navigated around the park at normal walking pace. With a capture range of 100m, It took just 9 minutes in total to walk around the park and capture all the trees.
Back in the office we processed the data with GeoSLAM Hub software, then exported using GeoSLAM Draw. The data was then imported into an open source forestry programme called 3DForest whereupon several parameters could be measured and extracted automatically including ground extraction, tree detection, tree position detection, tree radius determination, tree height determination, tree crowns detection, crowns volume calculation and crowns collision determination.
Later we revisited the park to check the accuracy of their results and re-produced the survey using a total station with built-in REM (Remote Elevation Measurement) and a measuring tape. Not only did it take four minutes per tree to capture data due to all the total station setups, but only four parameters (diameter, height and relative position) could be calculated using these methods. If they had attempted to measure all 217 trees, it would have taken a whopping 14.5 hours!
Using the ZEB Horizon and 3DForest software, it took 9 minutes to scan the park, 12 to process the data in GeoSLAM Hub, 5 minutes to reduce the data size in Hub and prepare the cloud for the forestry software, which took 90 minutes to process. The total workflow took just under two hours to collect and measure all 217 trees – using traditional methods they could have surveyed just 29 trees in this time.
Geocentar calculated that results were accurate to within 3cm and were more accurate than using traditional methods, leading to great cost savings.
As mobile laser scanning becomes faster, more cost effective and accurate, surveying companies are finding them to be one of the most efficient tools for capturing the spatial details of a building in 3D. Pointclouds are being used more and more in the property renovation and architecture markets, where the use of LiDAR and SLAM are driving down cost and increasing efficiency.
CEP David Pierrot is a surveying company based in the South-East of France, in both Cannes and Mandelieu. Since beginning their business in 1965, his company has worked on over 21,000 projects in the Alpes-Maritime and surrounding areas, and they continue to work on over 800 projects per year.
The company is represented by 2 expert surveyors, David Pierrot and Robin Bruna. They understand the value in using the latest hardware and software technologies to achieve the best results for their clients. In recent years David and Robin have adopted GeoSLAM scanners into their arsenal of tools, due to their speed and precision. They began working with the ZEB Revo RT, and have since incorporated two ZEB Horizons into their business.
Pointcloud captured by CEP David Pierrot using GeoSLAM scanners
ZEB Horizon | Scanning a French villa
The company was recently tasked with completing a survey of a villa on a steep hillside, in Théoule-Sur-Mer. The goal of the project was to create a detailed topographical map of the existing building and surrounding area, working closely with an architect who will use the map to plan and conduct new construction work. As the surveying experts, they establish whether the site is suitable for the planned construction work, and the architect uses the 3D/2D vector to put together plans for the construction work.
The GeoSLAM ZEB Horizon was chosen to conduct this scan because of its speed of acquisition, precise measurements, range, and versatility. A large part of the scan took place on a steep hill leading up to the house, so a handheld scanner was the ideal choice.
The surveyor in charge of this scan, Robin Bruna, was able to walk and scan, cutting down the time it took to capture the entire area, whereas a static scanner on a tripod would have taken far longer due to the tough terrain. The entire scan was conducted using only the GeoSLAM ZEB Horizon.
The ZEB Horizon scans points at 40-50m, which allows for a much better trajectory than other mobile scanners.
The area of land scanned, including the house, totalled 8000 sq/m and the whole area was captured in just 4 scans. Each scan took approximately 10-15 minutes to complete, so the team were able to capture useable pointcloud data in approximately one hour!
The separate scans were then processed using GeoSLAMs HUB software and merged into a complete 3D pointcloud before being georeferenced. The team then took the pointcloud through a classification process to get a better understanding of the land, before beginning the creation a 3D/2D vector map in Autocad.
They also created longitudinal cuts in the cloud to provide the architect with reliable and visual information about the incline of the hill. The maps created will help the architects carry out landscape insertions and plan out new construction work to the lower part of the property.
The use of the ZEB Horizon meant that the team could not only carry out the entire scan with ease, but due to the speed of data acquisition, they were able to get the pointcloud into the post processing stage far quicker than if they had used a static scanner, thus saving them time and money.
The digitlisation of the land makes it possible for the architect to check the feasibility of construction, without needing to re-visit the area. Finally, in line with the “ordre das geomitics-experts”, David and Robin set up a process that allows the inspection of the measurement accuracy.
To learn more about some of the projects CEP David Pierrot have been involved with, visit them at www.cabinetpierrot.fr
Creating floorplans to cut incident response times
Response time reduced by 21%
Schools across the USA
Entropy Group | Words Robert W. Myers J.D.
Active shooter incidents are a growing concern in the United States, with death tolls, most predominantly in schools, rapidly rising and law enforcement resources stretched beyond breaking point.
With the unpredictability of these incidents, both in scale and location, our team at Entropy Group LLC has been working alongside law enforcement and US attorneys nationwide in order to compress response times, by utilizing 2D floor plans and 3D models developed from GeoSLAM ZEB Revo RT data sets, a program that is patent pending.
“ZEB Revo RT provides us with the necessary accuracy and is much more time efficient than other laser scanning technologies.“
The significance of the problem is evidenced by the recent publication of a National Standard for response to active shooters. The National Fire Protection Association, (NFPA), published NFPA 3000(PS), a provisional national standard, titled, “Standard for an Active Shooter / Hostile Event Response (ASHER) Program“, published April 11, 2018.
According to scanning professionals, to map just the K-12 public schools in the U.S., it would take a scanning team, scanning 100,000 square feet per day, seven days a week, a total of 181 years to complete. This estimate addresses only the public schools and does not address any of the many private schools, let alone the post-secondary school facilities.
When confronted with the magnitude of the effort it was immediately obvious to Entropy Group LLC staff that we needed to join forces with GeoSLAM because their ZEB REVO line of scanners provide the necessary accuracy and are much more time efficient than other laser scanner technologies.
To finalize the proof of efficacy of the patent pending filing, Entropy Group LLC recently completed a simulated active shooter incident where six law enforcement officers were tested by responding to a fictitious scenario. Officers were provided a detailed floorplan of the two story building which is currently used as a church and parochial school facility. The structure is quite complex with many classrooms, counselling rooms, worship sanctuary, multi-media studios, café area and church offices.
The results of the exercise indicate that officers which have access to the 2D floor plans ahead of time, improve their situational awareness, their confidence in responding to a facility that they have never been to previously, by gaining “facility familiarity” through review of floor plans and other data prior to their response. Additionally, response times were documented to decrease by up to 21%. This improvement in response will directly result in fewer deaths and casualties.
Entropy Group LLC is a full-service Forensics and Security Consultancy firm providing services for Executive Protection, Accident Reconstruction, Security Threat Assessments, Building Information Modelling, Security Design Reviews, Security Program Reviews / Audits,Litigation Support, Pre-Travel Security Front Team Assessments, and Access Control Assessments.
We value our relationship with GeoSLAM and California Surveying and Drafting Supply (CSDS) and their support of our mission by providing premier instrumentation for the improvement of societal ability to address and respond to active shooter events.”
1 Springer. “Rapid rise in mass school shootings in the United States, study shows: Researchers call for action to address worrying increase in number of mass school shootings in past two decades.” ScienceDaily, 19 April 2018
Using LiDAR to understand complex forest environments
10 mins per scan
1km in length
University of Leicester | Eden Project
Monitoring and understanding our environment has never been more important as the threat of climate change looms and governments step up to better manage their greenhouse gas emissions. Tom Potter, a doctoral researcher at the University of Leicester, UK, set out to further develop a technique to estimate biomass and carbon more efficiently using state-of-the-art, mobile LiDAR sensors across multiple, complex forest environments.
To do so he visited the Eden Project in Cornwall, UK which reflects a true tropical forest – representing different forests from around the world with a rainforest ‘biome’ of over 1,000 tropical trees and plans. However, he had to work around several challenges. For fixed point scanners, the high-density plots of specimens created a problem of shadows – known as ‘occlusions’ – whereby the nearest features will block out features behind. This also limits the ability to acquire accurate measurements to create a comprehensive 3D model. And with the biome being open to the public and a popular tourist destination, Tom only had a few hours each day before opening hours – insufficient time for a traditional static survey.
“Using GeoSLAM’s local processing software, the raw scan data was processed on site, with no internet connection required – useful when in an actual rainforest!“
Mobile surveying equipment that was able to take readings easily and quickly from even the densest areas was needed to ensure precise scans were taken to accurately calculate biomass and carbon storage potential.
Tom found the mobility and speed of GeoSLAM’s ZEB Revo to be the perfect solution. The lightweight scanner can be pole mounted, handheld or even attached to a vehicle or drone – collecting over 43,000 measurement points per second. Instead of hundreds of time-consuming static scans, Tom captured all angles by simply walking in a loop around the rainforest environment.
He then converted the point cloud data into 3D volume-based plots to derive above-ground biomass and carbon densities for multiple types of tropical forest. A comprehensive dataset was built, containing information for any type of forest that scientists can use to make calculations with minimal survey effort or expertise. And all at considerably less expenditure than traditional survey methods.
COWI embraces mobile mapping technology to measure buildings
COWI | Words by Morten Thoft
Digital technology is changing the way we design, construct and maintain our infrastructure. With the built environment ever more complex, traditional 2D data is not up to the task. As we move towards a more intelligent, more integrated, BIM-focused methodology, 3D data is becoming the norm. To stay ahead of the competition, surveying firms need to integrate innovative engineering approaches, digital technologies and intelligent data.
COWI is a multi-discipline engineering and planning firm based in Denmark. We have been eager to accelerate survey workflows and, as a result, have embraced digital engineering and added several GeoSLAM solutions to our arsenal of specialist scanning equipment. In just 6 short months since acquiring their first handheld laser scanner, a two-man team at COWI has used the ’go-anywhere’ mapping device to survey the interiors of some 400 municipal buildings; mapping over 16,000 rooms and measuring more than 300,000 m2 .
“We can now measure building plans 10-times faster than we used to with total station or traditional survey equipment.“
GeoSLAM’s solutions are changing the way we survey buildings. We can now measure building plans 10-times faster than we used to with Total Station or traditional survey equipment. Our decision to purchase another GeoSLAM solution was easy. With their handheld devices, we surveyed more buildings with more rooms in six months than traditional survey equipment would have allowed in many years. And we were able to capture more information in the process.
Choate Construction utilizes GeoSLAM to create floorplans for hurricane damaged properties
7 mins per scan
111,000 sq ft
Choate Construction | Construction company
2017’s Hurricane Irma was the most powerful storm to hit the continental United States since Katrina in 2005. Besides the high human cost (almost 100 lives lost in the US) the financial cost to property was estimated to top $50 billion – the 5th costliest hurricane in US history.
Amongst those damaged properties were the Westlake Apartments in Savannah, Georgia – a complex of 14 buildings containing 100 individual apartments encompassing over 111,000 sq. ft. These residential structures were flooded by the storm surge – meaning major renovations were required to repair the significant water damage.
With the complex dating from 1974, no building blueprints were in existence. The huge task facing contractor Choate Construction was therefore to rapidly collect this spatial data to produce the necessary internal floorplans and external elevations. Utilizing a static scanner was out of the question as to capture all necessary data would have required over 1,500 individual set-ups – at an estimated timescale of 3 weeks.
“This would have taken over 75 hours of scanner time along with a static scanner, with the ZEB Revo we were able to accomplish this in only two days“
Mobile, handheld mapping was therefore the ideal solution – chosen for its incredible speed and ease of use. Instead of 1,500 scans, just 14 scans were required (one scan per building) to collect the necessary building elements (floors, walls, ceilings, rooves, doors, and windows) within the required accuracy tolerance.
The Choate Construction team utilized the ZEB Revo to complete the job. With individual scans as quick as just 7 minutes, the average scan time was 40 minutes per building. In total, the team spent less than 10 hours scanning – spending just 2 days on site.
This speed was of particular importance as the residential units were in occupation – with a scan time of just 5 minutes per unit, disruption to residents was kept to an absolute minimum.
The survey team were delighted with the high reliability of the scan data, all within 1” relative and absolute accuracy. They were also surprised by how well the external features (exterior walls and sloped rooves) were captured – with no drift or errors encountered.
The 3D scan data was quickly processed in GeoSLAM Hub – a one-stop shop for point cloud manipulation.
The office team were able to view the individual 3D point clouds, as well as merging them into one. The data was also sliced into plans, sections and elevations within GeoSLAM Draw, and exported in a CAD-friendly format. From this data, an accurate 3D Revit model was built and supplied to the project architect.
With the increasing incidence of ever-more powerful tropical storms, and an ageing property stock, such quick and simple survey solutions are surely the way of the future
Established in 2001, Builders by Design Ltd are a multi-disciplinary design and construction company based in London. Their expertise and services are mainly in the residential sector for new builds, conversions, and extensions. The core business is a combination of collaborations via competitive tender, negotiated contracts and design and build. They also have a bespoke joinery workshop facility in Park Royal, designing and fabricating furniture, kitchens, windows and doors. One of their greatest achievements to date, was being selected as the main contractor for Peacock House, a new build in Aldeburgh, Suffolk which was awarded a National and Regional RIBA award and was longlisted for Grand Designs House of the Year in 2017.
We spoke with Director, Nick Phillips, following their recent purchase of their GeoSLAM ZEB Revo RT to get an understanding of how this was helping to support their business. Previously, external companies were appointed to produce the 2D surveys which proved to be expensive, time consuming and not without errors and omissions.
Traditional 2D surveys instructed, would only take limited data, meaning important details on areas, such as staircases were incomplete. Inevitably there were times during the later stages of design and construction that the absence of such details required re-working of proposals. The manual process was also not very efficient, as it could take a full day for 1 person to survey a 3-bedroomed house and several weeks to receive the results. Nick identified that projects with existing structures should always start with comprehensive 3D data, which led to the purchase of the GeoSLAM ZEB Revo RT to enable 3D data capture in-house.
“Bringing 3D data capture in house was the obvious next step, with speed and accuracy important factors. For this and other reasons we selected GeoSLAM to provide the equipment and software required. It has had a positive impact on our workflows, which we will look to keep improving“
Before purchasing the ZEB Revo RT, other scanners were considered, such as terrestrial and static, but there were time and software limitations to adopting these more traditional systems. Using these methods was not efficient enough for Builders by Design, as they needed technology with speed, accuracy, and ease of use. Using GeoSLAM handheld solutions meant they could complete between 6-8 scans a day, with the accuracy they needed, whereas a static scanner may only achieve 1-2 scans a day. With current Covid-19 restrictions, having a single operative on site for only 30-minutes to complete the internal and external data capture can bring logistical advantages where a property is still occupied.
Builders by Design have integrated the ZEB Revo RT as an integral part of their digital workflows, providing all the stakeholders with dynamic visualisation material for project design. They use the ZEB Revo RT to scan the 3D point cloud, importing the data into CAD software to create 3D models and 2D planning documentation for the design team. Working in 3D environments together with other visualisation tools has also created a transparency and understanding of design intent between the Architect, the site team and the client that could not have been achieved with 2D plans, sections, and elevations.
Having utilised the GeoSLAM ZEB Revo RT in-house to identify the many benefits to the business, they plan to collaborate with external Architectural and Design practices undertaking their own digital transformation journey, to build templated 2D documentation of existing buildings, 360° site photos, 3D model and bespoke CAD packages. In closing, Nick emphasised that:
“Delivering a point of difference from the competition will become increasingly essential to remain relevant in the market, requiring new 3D technology adoption to assist in achieving fewer errors and more predictable outcomes for all building projects.“
“Billund Airport (BLL) in central Denmark is the second largest airport in the country, processing over 3 million travellers a year. Quite a few of the arriving tourists head to the original LEGOLAND resort which is situated nearby.
Similar to many airports, conveyor belts in the BLL departure terminal carry luggage down to the central baggage room for automated sorting before being loaded onto trolleys for the final few metres out to the waiting aircraft. With a ceiling nearly five metres high, the baggage room is a three-dimensional maze of ascending and descending conveyor belts, support structures, catwalks and HVAC piping.
A 3D model was needed to help determine if new conveyor belts could be threaded through the existing features for the expansion.
“As long as it takes to capture the scan data, that’s how long GeoSLAM Hub takes to process it. That is what is amazing about this technology“
Early in the project planning stage, BLL wasn’t sure how much detail they would need to proceed with the expansion design. We had worked extensively with the GeoSLAM ZEB Revo solution on multiple post-construction quality control jobs and were confident that the handheld device would provide an impressive level of detail in a short amount of time. In fact, it took less than 10 minutes.
After scanning the space, the data was imported into GeoSLAM Hub and the pointcloud was processed in just ten minutes as well.
To further demonstrate the detail of the data collection, LIFA sent a 30m2 section of the point cloud to a subcontractor for feature extraction and modelling. We had quite an amazing set of data, The 3D model included floors, walls, ceiling, conveyor belts, beams, cable trays, lights, railings, pipes, and structural features.
BLL officials were so impressed with the level of detail captured by the ZEB Revo, the information formed part of a more detailed model for a tender to upgrade and expand the belts and sorting for arriving baggage.
Creating a digital twin to transform an aging school
Kansas City, USA
Aurecon | Engineering company
BHC Rhodes | Engineering company
Transforming an aging school in the Jazz District of Kansas City to a community arts centre required the power of today’s real-time technology.
The Attucks building, built in 1905 and renovated in 1922 due to overcrowding, has undergone several developments over the years. For any plans to be approved on the site of the Attucks School, the commission needed substantial and comprehensive drawings – materials, floor plans, site drawings and elevations.
“A BIM model was provided two weeks earlier than expected, providing a comprehensive picture of the asset“
With several hazards identified – visible deterioration in the wood floorings, ceiling collapses, and air quality conditions including asbestos – a fast, accurate and safe survey technique was required.
Civil engineering firm, BHC Rhodes, embarked upon the complex task of a 3D Revit BIM (Building Information Model) using GeoSLAM technology. The handheld “go-anywhere” ZEB Revo is designed to be used without comprehensive training, meaning you can ‘pick up and go’, saving additional preparation time for any members of staff previously unfamiliar with the technology. It’s a simple setup and data gathering is quick and easy; wherever you can walk, you can scan.
With the aid of these lightweight, mobile scanners, specifically designed to scan difficult to access spaces, the entire property was scanned in only 4.5 hours, recording more than 43,000 measurements per second. A BIM model was provided two weeks earlier than expected providing a comprehensive picture of the asset. Only with these modern tools could a real-time digital twin of the ageing building be created quickly, and safely – saving considerable time and money.