*article sourced from Propeller Aero
In the construction industry, it’s critical that projects stay precise, timely, and safe. While that may sound relatively simple—after all, what industry doesn’t value those things?—the construction process is especially complex, with many moving parts. That’s why the benefits of 3D modeling in construction are so numerous.
Modern technology like 3D modeling from drone surveys is literally changing the landscape of the construction industry. At every stage of a project lifecycle, from takeoff to construction and beyond, 3D modeling software can keep construction projects on track and on budget.
An accurate 3D model is essential to reaping these benefits, but there’s good news—accuracy isn’t difficult to achieve once you understand the basics. Here’s how 3D modeling can help at every stage in a project lifecycle.
Before construction
At the beginning of a project, 3D modeling enables teams to simulate potential designs, estimate unnecessary costs, and identify flaws within architectural models.
Accurate 3D models of the surrounding landscape help to:
Calculate costs related to ground leveling, foundation pouring, and other preparation work
Simulate weather effects, such as the potential for flooding
Estimate a project’s impact on the surrounding neighborhood and terrain
An excellent 3D model begins with the terrain and is built up using a combination of real-world images and computerized simulations until it is a near-perfect match of the proposed project. All principal stakeholders can then access this 3D model to review potential changes and stay on the same page.
In the past, it was difficult for people to grasp how a worksite would look when the project was complete. Using 3D modeling, engineers, survey managers, and project managers can walk through a virtual project model before it’s even been built. These models go far beyond simple aesthetics. Accurate 3D modeling of construction projects helps in forecasting project costs, as it’s easier to get precise measurements of the materials and labor required.
Unlike reality, 3D models allow for the swapping of materials and engineering solutions multiple times during planning, to reduce project costs without compromising safety or stability. The higher the accuracy during the initial stages of the project, the less likely the project will require rework, which can cost a company millions of dollars, and they’re usually caused by errors in the initial data.
As 3D modeling becomes more advanced and the data collected becomes more extensive, the construction project rework is reduced significantly.
During construction
During construction, 3D models are used to ensure that projects stay on track and on time. You can easily make comparisons between the current state of your worksite and any pre-work survey. You can also overlay linework to compare your site surface to the projected surface, to ensure the site looks as it should be compared to the plan.
Using drones, contractors can survey a construction site in as little as two minutes of flight time. Then, with automated data processing, you can automatically compare current scans with 3D models of the projected completion. If recent surveys don’t match your projected models as they should, you can review any changes and make modifications as needed, before the project gets too far off track.
Drones complete detailed site scans via lidar or photogrammetry and combine them with location data from an onboard GPS, allowing them to digitally recreate a site surface with accuracy up to 1/10 foot.