In February 2026, at the Meissa Smart Construction Forum × Korea Build Week, Ha Chang-seong, Team Lead of Meissa's Domestic Business Team, presented on the tangible value that drone solutions can deliver on construction sites.
At the start of his talk, Team Lead Ha defined the essence of construction site management as follows.
"Managing a construction site is an operation run on spatial data."
Design is done through space-based drawings, construction changes daily on top of that space, and quantities are likewise calculated on a spatial basis. Everything that happens on site takes place in space—so why is it still managed under the names of text and know-how? He opened his presentation by raising this question.
Team Lead Ha summarized the structural limitations of conventional site management in four points.
First, sites are managed around paperwork and experience.
Second, site status reports rely on text, photos, and memory—and even photos are often taken only when an issue arises.
Third, on-site judgment depends on the individual manager's experience and intuition.
Fourth, if there's no problem it gets passed over, and by the time one arises it's already too late to respond.
The reason this structure is dangerous can be explained with numbers.
"Most sites operate without problems—out of 100 sites, only one or two run into issues. But a single incident can determine the profit of an entire project, from billions to tens of billions of won."
Even when quantities differ from the design there's no supporting evidence, and once time passes no records remain either. If the contractor changes, a response becomes impossible; he explained that conventional drone use alone leaves only panoramic photos or video, which falls far short of producing objective data.
The value the Meissa platform provides to construction sites can be organized into three perspectives: cost, time, and trust.
On building sites, the most direct cost benefit is earthwork volume management. Based on zoning, the Meissa platform compares current elevation with planned elevation to calculate daily work volume, total work volume, and remaining quantity by soil layer.
"In normal times it serves as reference material, but when a problem occurs it becomes the basis for decision-making. This should be approached not as cost savings at the site level, but from the perspective of company-wide risk management at headquarters."
The same holds for civil engineering sites. In the past, surveying itself was a cost. Both the prime contractor and subcontractors had to repeatedly deploy surveying personnel and time, and unrecorded survey points all disappeared over time. Drone-based surveying changes this structure, dramatically reducing the time needed to verify quantities and enabling more efficient work with the same headcount.
On site, situations where different people interpret the same issue differently happen often. In the end, the process repeats: checking the site in person, holding another meeting back at the office, taking action, and preparing reporting materials.
With spatial-data-based site management, everyone looks at the same screen to plan and make decisions. Decisions are made accurately and quickly, site visits decrease, and communication costs fall along with them.
There's a phrase you often hear at inspections, complaints, and audits.
"Ah, we don't have a photo from that time. That section had no problems, so there's no record."
The Meissa platform preserves the site exactly as it looked at a specific point in time in the cloud. It can be explained and substantiated with objective materials, and can be retrieved anytime as long as you have an internet connection.
"Even if the resolution is low and it seems useless at the time, having even a 2D orthophoto versus not having one is a difference of night and day."
Apartment (multi-unit housing) sites hinge on planning and management by zone. Using the Meissa platform's zone feature and drawing overlay feature, you can review the site as data at any point in time you want.
Civil engineering sites are so vast that it's hard to check every corner at a glance. With 2D orthophotos, drawing overlays, and the earthwork cross-section line feature, you can lay out the entire site in one view to plan and make decisions.
With such clear benefits, why have so many smart construction technologies failed to take root on site? Team Lead Ha spoke firmly on this point.
"The reason is not technology, but structure and trust."
There are five structural problems that have kept technology from being used on site.
Meissa's answer to this can be organized into three principles of adoption.
Minimize collection: We maximize the value gained from data relative to collection time. We actively use unmanned drone stations and RTK sensors to automate the collection stage.
Diffusion: We build a platform that decision-makers have no choice but to use. By having decision-makers use the platform directly, we create an environment where the product stays continuously active.
Care: We manage the service through AM (account management) activities. Using headquarters-statistics-based reporting on site usage, we sustain site care and activation.
"The key is not selling a tool (technology), but making it work as an operation."
The next stage Meissa envisions is the fusion of spatial data and AI. Know-how and experience remain important, and AI cannot replace the special cases unique to each site. But when AI is combined with experience and know-how, it becomes the basis for judgment and a tool for fast planning and decision-making.
Team Lead Ha closed his presentation like this.
"You feel the value of spatial data most painfully not at the moment you use it, but when you don't have it."
Records are assets, and alignment among design, construction, and progress payments enables immediate judgment. Spatial data is not merely a visualization tool but a single source of truth that connects past, present, and future.
This content was presented in person by Ha Chang-seong, Team Lead of Meissa's Domestic Business Team, in the second session of the 2026 Meissa Smart Construction Forum.
If you'd like to see the on-site cases and context in video, you can watch it at the link below.
▶ Watch the presentation video → https://youtu.be/CEQs7c0SxTU?si=J6kZB87LzdyJRhZj
