M-SILNICE modernizes earthwork documentation with drone surveying
M-SILNICE accelerates earthwork documentation with drone surveying
M-SILNICE introduced drone surveying and AVAG cloud processing from day one on the D35 Krelov–Slavonin highway project, replacing traditional geodetic methods with fast, on-site photogrammetry for earthwork documentation and volumetric calculations. Monthly (and on-demand) drone flights replace several days of manual surveying while giving construction managers the aerial overview needed for quick verification and accurate invoicing.
Challenges
Hilly, undeveloped terrain requiring continuous earthwork monitoring
Regular progress reports with accurate volumetric data for subcontractor invoicing
Windy sections of the site complicating flight planning
Coordinating earthworks across a 3.2 km highway section with multiple structures
Solutions
Using a DJI Mavic 3 Enterprise RTK stored directly on-site for flexible, as-needed flights
Processing data in the AVAG cloud for automated calculations and progress documentation
Allowing construction managers to upload flight data themselves—no external survey crews
Combining drone outputs with selected traditional geodetic methods for full site coverage
Using a DJI Mavic 3 Enterprise RTK stored directly on-site for flexible, as-needed flights
Processing data in AVAG for automated calculations and progress documentation
Allowing construction managers to upload flight data themselves—no external survey crews
Combining drone outputs with selected traditional methods for full site coverage
Results
Monthly and event-based drone flights save multiple days of manual surveying
Approximately 20 GB of data generated per flight, scaled across 12 months of documentation
Centimeter-level spatial accuracy achieved through RTK + ground control points (GCPs)
On-site drone availability enables immediate data capture after key construction stages, keeping work moving without delays
Monthly and event-based drone flights save multiple days of manual surveying
Approximately 20 GB of data generated per flight, scaled across 12 months of documentation
Centimeter-level spatial accuracy achieved through RTK + ground control points (GCPs)
On-site drone availability enables immediate data capture after key construction stages, keeping work moving without delays
Solving a major traffic bottleneck
Every day, 18,000 vehicles pass the Globus hypermarket near Olomouc, creating persistent congestion. The solution was to complete the western bypass connecting Olomouc to the D35 toward Mohelnice and the D46 toward Brno.
Before ground was broken, M-SILNICE began capturing drone images along the 3.2 km section."We’ve been using the drone since the very start. The first images were taken before we figuratively broke ground. I had experience with drone photogrammetry and AVAG from other projects, so this wasn’t new for us," says Michal Horak, Operations Manager Litovel at M-SILNICE.
The route passes through hilly, undeveloped land, with the most demanding stage—connecting the bypass to the D35—scheduled for 2025.
The construction manager flies the drone about once per month, or anytime a major layer or earthwork is finished. Flight data is uploaded immediately to AVAG, which automatically processes volumes for progress reports and invoicing.
The aerial view provides fast, reliable verification against plans, ensuring teams can confirm progress without delays.
Every day, 18,000 vehicles pass the Globus hypermarket near Olomouc, creating persistent congestion. The solution was to complete the western bypass connecting Olomouc to the D35 toward Mohelnice and the D46 toward Brno.
Before ground was broken, M-SILNICE began capturing drone images along the 3.2 km section. "We’ve been using the drone since the very start. The first images were taken before we figuratively broke ground. I had experience with drone photogrammetry and AVAG from other projects, so this wasn’t new for us, says Michal Horak, Operations Manager Litovel at M-SILNICE.
The route passes through hilly, undeveloped land, with the most demanding stage, which will connect the bypass to the D35, scheduled for 2025.
The construction manager flies the drone about once per month, or anytime a major layer or earthwork is finished. Flight data is uploaded immediately to AVAG, which automatically processes volumes for progress reports and invoicing.
The aerial view provides fast, reliable verification against plans, ensuring teams can confirm progress without delays.
Weather flexibility: Flights when the site allows
Keeping the drone on-site eliminates the need to schedule external survey teams and makes weather issues manageable.
Every day, 18,000 vehicles pass the Globus hypermarket near Olomouc, creating persistent congestion. The solution was to complete the western bypass connecting Olomouc to the D35 toward Mohelnice and the D46 toward Brno.
Before ground was broken, M-SILNICE began capturing drone images along the 3.2 km section. "We’ve been using the drone since the very start. The first images were taken before we figuratively broke ground. I had experience with drone photogrammetry and AVAG from other projects, so this wasn’t new for us, says Michal Horak, Operations Manager Litovel at M-SILNICE.
The route passes through hilly, undeveloped land, with the most demanding stage, which will connect the bypass to the D35, scheduled for 2025.
The construction manager flies the drone about once per month, or anytime a major layer or earthwork is finished. Flight data is uploaded immediately to AVAG, which automatically processes volumes for progress reports and invoicing.
The aerial view provides fast, reliable verification against plans, ensuring teams can confirm progress without delays.
“We have several windy spots where we’ve had to interrupt flights. But because the drone is always on the site, it’s no problem—we just fly the next day. When a stage is finished, we can capture the data in minutes and keep construction moving. AVAG isn’t affected by weather at all.”
Michal Horak
Operations Manager Litovel, M-SILNICE
Drone photogrammetry covers all earthworks and selected structural layers, while traditional geodetic tools are used for specialized measurements. This hybrid method ensures complete documentation without slowing the project.
AVAG and drone data deliver centimeter accuracy thanks to the combination of RTK and GCPs, with no limits on file sizes and near-instant initial processing.
Balanced approach: Drones + geodetic methods
Drone photogrammetry covers all earthworks and selected structural layers, while traditional geodetic tools are used for specialized measurements. This hybrid method ensures complete documentation without slowing the project.
AVAG and drone data deliver centimeter accuracy thanks to the combination of RTK and GCPs, with no limits on file sizes and near-instant initial processing.
Compare drone surveying costs to traditional methods
Drone + AVAG
Drone + AVAG
Drone + AVAG
Drone + AVAG
Flying time
1 km in 15–20 minutes (+ GCP setup)
Processing time
Seconds to initiate → outputs in hours
Approx cost.
Only AVAG processing
— vs —
Human workers
Human workers
Human workers
Human workers
Mapping time
2–4 days/month in the field
Processing time
Days for volumetric outputs
Approx cost.
10–15k CZK per day for a small crew
AVAG highlights
High-volume documentation: ~20 GB per flight over 12 months
Centimeter-level accuracy: RTK + GCP-based measurements
Unlimited data capacity: No file size limits
Instant calculations: Initial processing in seconds
“We’re pleased that AVAG is being used on all currently constructed highway sections in the Czech Republic. It’s not only about saving time and personnel because the system delivers centimeter-level accuracy and accepts unlimited data uploads.”
Marek Ruzek
CTO, AVAG Pro
Project details
Eurovia
Eurovia
Eurovia
Eurovia
Project name
D35 Krelov – Slavonin, Phase 2
Timeline
02/2024 – 12/2025
Railway line length
3,166 meters
Structures
3 bridges (222m total length), 1 grade-separated intersection, 1 roundabout, 437m noise barrier
Drone model
DJI Mavic 3 Enterprise RTK
Investor
RSD (The Road and Motorway Directorate of the Czech Republic)
Contractor
M-SILNICE a.s.
Application
Make decisions in hours instead of weeks
Turn drone data into action with AVAG. Capture, process, and visualize your site faster than ever.
Clients
What our clients say
Discover the success stories and testimonials from our satisfied clients who have transformed their workflow with AVAG.
With the AVAG application, I can easily share data with colleagues, which reduces project costs. I also appreciate that I can upload my previously processed data into the application.
Milan Hajzler
Construction manager at ŽS OHLA, a.s.
AVAG has significantly simplified our project navigation. The entire team has an overview of the overall situation on site, construction progress, and the volumes of extracted or processed materials. The ability to integrate a model of the object into the project and compare it with the current situation helps us in planning machinery deployment and determining the time requirements for different parts of the project.
Viktor Wofek
Senior Earthworks Worker at A.K.U.P.I. s.r.o.
We use the application for calculating volumes of earthworks as the primary basis for invoicing. It also serves as documentation for construction progress. Our site managers use AVAG as well, allowing them to keep track of daily work. The application saves us time and, consequently, money.
Tomáš Lauwereys
Construction manager at M - Silnice a.s.
Through the AVAG application, I can share construction data with colleagues who don’t have access to specialized programs for viewing photogrammetric data. We have a better overall view of the construction site, can easily calculate earthwork volumes, and generate terrain profiles.
Jakub Šandor
Surveyor at Eurovia CZ a.s.
We are using AVAG for sharing data allowing the end user to utilise the data to its fullest Especially, it allows us to generate profiles and volume calcs. I do love what's been made so far!
Paul Brazill
Survey Technical Manager at QTS Group
AVAG is easy to use and much simpler than having users learn GIS software. We use it for presenting data from smaller drone projects.
Søren Rolin
Senior Specialist at Niras A/S
The AVAG application allows my clients to follow projects and confirm design compliance and quantities.
George Karaolis
Quantity Surveyor at G. Roditis & Partners
With the AVAG application, I can easily share data with colleagues, which reduces project costs. I also appreciate that I can upload my previously processed data into the application.
Milan Hajzler
Construction manager at ŽS OHLA, a.s.
AVAG has significantly simplified our project navigation. The entire team has an overview of the overall situation on site, construction progress, and the volumes of extracted or processed materials. The ability to integrate a model of the object into the project and compare it with the current situation helps us in planning machinery deployment and determining the time requirements for different parts of the project.
Viktor Wofek
Senior Earthworks Worker at A.K.U.P.I. s.r.o.
We use the application for calculating volumes of earthworks as the primary basis for invoicing. It also serves as documentation for construction progress. Our site managers use AVAG as well, allowing them to keep track of daily work. The application saves us time and, consequently, money.
Tomáš Lauwereys
Construction manager at M - Silnice a.s.
Through the AVAG application, I can share construction data with colleagues who don’t have access to specialized programs for viewing photogrammetric data. We have a better overall view of the construction site, can easily calculate earthwork volumes, and generate terrain profiles.
Jakub Šandor
Surveyor at Eurovia CZ a.s.
We are using AVAG for sharing data allowing the end user to utilise the data to its fullest Especially, it allows us to generate profiles and volume calcs. I do love what's been made so far!
Paul Brazill
Survey Technical Manager at QTS Group
AVAG is easy to use and much simpler than having users learn GIS software. We use it for presenting data from smaller drone projects.
Søren Rolin
Senior Specialist at Niras A/S
The AVAG application allows my clients to follow projects and confirm design compliance and quantities.
George Karaolis
Quantity Surveyor at G. Roditis & Partners
Clients
What our clients say
Discover the success stories and testimonials from our satisfied clients who have transformed their workflow with AVAG.
With the AVAG application, I can easily share data with colleagues, which reduces project costs. I also appreciate that I can upload my previously processed data into the application.
Milan Hajzler
Construction manager at ŽS OHLA, a.s.
AVAG has significantly simplified our project navigation. The entire team has an overview of the overall situation on site, construction progress, and the volumes of extracted or processed materials. The ability to integrate a model of the object into the project and compare it with the current situation helps us in planning machinery deployment and determining the time requirements for different parts of the project.
Viktor Wofek
Senior Earthworks Worker at A.K.U.P.I. s.r.o.
We use the application for calculating volumes of earthworks as the primary basis for invoicing. It also serves as documentation for construction progress. Our site managers use AVAG as well, allowing them to keep track of daily work. The application saves us time and, consequently, money.
Tomáš Lauwereys
Construction manager at M - Silnice a.s.
Through the AVAG application, I can share construction data with colleagues who don’t have access to specialized programs for viewing photogrammetric data. We have a better overall view of the construction site, can easily calculate earthwork volumes, and generate terrain profiles.
Jakub Šandor
Surveyor at Eurovia CZ a.s.
We are using AVAG for sharing data allowing the end user to utilise the data to its fullest Especially, it allows us to generate profiles and volume calcs. I do love what's been made so far!
Paul Brazill
Survey Technical Manager at QTS Group
AVAG is easy to use and much simpler than having users learn GIS software. We use it for presenting data from smaller drone projects.
Søren Rolin
Senior Specialist at Niras A/S
The AVAG application allows my clients to follow projects and confirm design compliance and quantities.
George Karaolis
Quantity Surveyor at G. Roditis & Partners
With the AVAG application, I can easily share data with colleagues, which reduces project costs. I also appreciate that I can upload my previously processed data into the application.
Milan Hajzler
Construction manager at ŽS OHLA, a.s.
AVAG has significantly simplified our project navigation. The entire team has an overview of the overall situation on site, construction progress, and the volumes of extracted or processed materials. The ability to integrate a model of the object into the project and compare it with the current situation helps us in planning machinery deployment and determining the time requirements for different parts of the project.
Viktor Wofek
Senior Earthworks Worker at A.K.U.P.I. s.r.o.
We use the application for calculating volumes of earthworks as the primary basis for invoicing. It also serves as documentation for construction progress. Our site managers use AVAG as well, allowing them to keep track of daily work. The application saves us time and, consequently, money.
Tomáš Lauwereys
Construction manager at M - Silnice a.s.
Through the AVAG application, I can share construction data with colleagues who don’t have access to specialized programs for viewing photogrammetric data. We have a better overall view of the construction site, can easily calculate earthwork volumes, and generate terrain profiles.
Jakub Šandor
Surveyor at Eurovia CZ a.s.
We are using AVAG for sharing data allowing the end user to utilise the data to its fullest Especially, it allows us to generate profiles and volume calcs. I do love what's been made so far!
Paul Brazill
Survey Technical Manager at QTS Group
AVAG is easy to use and much simpler than having users learn GIS software. We use it for presenting data from smaller drone projects.
Søren Rolin
Senior Specialist at Niras A/S
The AVAG application allows my clients to follow projects and confirm design compliance and quantities.
George Karaolis
Quantity Surveyor at G. Roditis & Partners
Clients
What our clients say
Discover the success stories and testimonials from our satisfied clients who have transformed their workflow with AVAG.
With the AVAG application, I can easily share data with colleagues, which reduces project costs. I also appreciate that I can upload my previously processed data into the application.
Milan Hajzler
Construction manager at ŽS OHLA, a.s.
AVAG has significantly simplified our project navigation. The entire team has an overview of the overall situation on site, construction progress, and the volumes of extracted or processed materials. The ability to integrate a model of the object into the project and compare it with the current situation helps us in planning machinery deployment and determining the time requirements for different parts of the project.
Viktor Wofek
Senior Earthworks Worker at A.K.U.P.I. s.r.o.
We use the application for calculating volumes of earthworks as the primary basis for invoicing. It also serves as documentation for construction progress. Our site managers use AVAG as well, allowing them to keep track of daily work. The application saves us time and, consequently, money.
Tomáš Lauwereys
Construction manager at M - Silnice a.s.
Through the AVAG application, I can share construction data with colleagues who don’t have access to specialized programs for viewing photogrammetric data. We have a better overall view of the construction site, can easily calculate earthwork volumes, and generate terrain profiles.
Jakub Šandor
Surveyor at Eurovia CZ a.s.
We are using AVAG for sharing data allowing the end user to utilise the data to its fullest Especially, it allows us to generate profiles and volume calcs. I do love what's been made so far!
Paul Brazill
Survey Technical Manager at QTS Group
AVAG is easy to use and much simpler than having users learn GIS software. We use it for presenting data from smaller drone projects.
Søren Rolin
Senior Specialist at Niras A/S
The AVAG application allows my clients to follow projects and confirm design compliance and quantities.
George Karaolis
Quantity Surveyor at G. Roditis & Partners
With the AVAG application, I can easily share data with colleagues, which reduces project costs. I also appreciate that I can upload my previously processed data into the application.
Milan Hajzler
Construction manager at ŽS OHLA, a.s.
AVAG has significantly simplified our project navigation. The entire team has an overview of the overall situation on site, construction progress, and the volumes of extracted or processed materials. The ability to integrate a model of the object into the project and compare it with the current situation helps us in planning machinery deployment and determining the time requirements for different parts of the project.
Viktor Wofek
Senior Earthworks Worker at A.K.U.P.I. s.r.o.
We use the application for calculating volumes of earthworks as the primary basis for invoicing. It also serves as documentation for construction progress. Our site managers use AVAG as well, allowing them to keep track of daily work. The application saves us time and, consequently, money.
Tomáš Lauwereys
Construction manager at M - Silnice a.s.
Through the AVAG application, I can share construction data with colleagues who don’t have access to specialized programs for viewing photogrammetric data. We have a better overall view of the construction site, can easily calculate earthwork volumes, and generate terrain profiles.
Jakub Šandor
Surveyor at Eurovia CZ a.s.
We are using AVAG for sharing data allowing the end user to utilise the data to its fullest Especially, it allows us to generate profiles and volume calcs. I do love what's been made so far!
Paul Brazill
Survey Technical Manager at QTS Group
AVAG is easy to use and much simpler than having users learn GIS software. We use it for presenting data from smaller drone projects.
Søren Rolin
Senior Specialist at Niras A/S
The AVAG application allows my clients to follow projects and confirm design compliance and quantities.
George Karaolis
Quantity Surveyor at G. Roditis & Partners
Clients
What our clients say
Discover the success stories and testimonials from our satisfied clients who have transformed their workflow with AVAG.
With the AVAG application, I can easily share data with colleagues, which reduces project costs. I also appreciate that I can upload my previously processed data into the application.
Milan Hajzler
Construction manager at ŽS OHLA, a.s.
AVAG has significantly simplified our project navigation. The entire team has an overview of the overall situation on site, construction progress, and the volumes of extracted or processed materials. The ability to integrate a model of the object into the project and compare it with the current situation helps us in planning machinery deployment and determining the time requirements for different parts of the project.
Viktor Wofek
Senior Earthworks Worker at A.K.U.P.I. s.r.o.
We use the application for calculating volumes of earthworks as the primary basis for invoicing. It also serves as documentation for construction progress. Our site managers use AVAG as well, allowing them to keep track of daily work. The application saves us time and, consequently, money.
Tomáš Lauwereys
Construction manager at M - Silnice a.s.
Through the AVAG application, I can share construction data with colleagues who don’t have access to specialized programs for viewing photogrammetric data. We have a better overall view of the construction site, can easily calculate earthwork volumes, and generate terrain profiles.
Jakub Šandor
Surveyor at Eurovia CZ a.s.
We are using AVAG for sharing data allowing the end user to utilise the data to its fullest Especially, it allows us to generate profiles and volume calcs. I do love what's been made so far!
Paul Brazill
Survey Technical Manager at QTS Group
AVAG is easy to use and much simpler than having users learn GIS software. We use it for presenting data from smaller drone projects.
Søren Rolin
Senior Specialist at Niras A/S
The AVAG application allows my clients to follow projects and confirm design compliance and quantities.
George Karaolis
Quantity Surveyor at G. Roditis & Partners
With the AVAG application, I can easily share data with colleagues, which reduces project costs. I also appreciate that I can upload my previously processed data into the application.
Milan Hajzler
Construction manager at ŽS OHLA, a.s.
AVAG has significantly simplified our project navigation. The entire team has an overview of the overall situation on site, construction progress, and the volumes of extracted or processed materials. The ability to integrate a model of the object into the project and compare it with the current situation helps us in planning machinery deployment and determining the time requirements for different parts of the project.
Viktor Wofek
Senior Earthworks Worker at A.K.U.P.I. s.r.o.
We use the application for calculating volumes of earthworks as the primary basis for invoicing. It also serves as documentation for construction progress. Our site managers use AVAG as well, allowing them to keep track of daily work. The application saves us time and, consequently, money.
Tomáš Lauwereys
Construction manager at M - Silnice a.s.
Through the AVAG application, I can share construction data with colleagues who don’t have access to specialized programs for viewing photogrammetric data. We have a better overall view of the construction site, can easily calculate earthwork volumes, and generate terrain profiles.
Jakub Šandor
Surveyor at Eurovia CZ a.s.
We are using AVAG for sharing data allowing the end user to utilise the data to its fullest Especially, it allows us to generate profiles and volume calcs. I do love what's been made so far!
Paul Brazill
Survey Technical Manager at QTS Group
AVAG is easy to use and much simpler than having users learn GIS software. We use it for presenting data from smaller drone projects.
Søren Rolin
Senior Specialist at Niras A/S
The AVAG application allows my clients to follow projects and confirm design compliance and quantities.
George Karaolis
Quantity Surveyor at G. Roditis & Partners
See what your drone data can really do
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See what your drone data can really do
Join more than 1,000 satisfied users. Just upload your files and see results.
No credit card required
See what your drone data can really do
Join more than 1,000 satisfied users. Just upload your files and see results.
No credit card required
See what your drone data can really do
Join more than 1,000 satisfied users. Just upload your files and see results.
No credit card required