Roads & Highways

Dohwa Consulting Engineers (South Korea): Road Design

Dohwa Consulting Engineers overcomes 2D design limitations and accelerates the pace of projects with Autodesk® Civil 3D® software

“We see 3D design is becoming the dominant technology in the industry. Our principal client, the Korean government, demands 3D presentations for citizens who want information about a new project and the environmental impact. We expect that our move to Autodesk Civil 3D will not only meet our clients’ needs and give Dohwa a competitive advantage, but also help to further develop Korea’s roadway infrastructure.”
—Roh Hee-Chan, Deputy Manager, Department of Roads, Dohwa Consulting Engineers Company, Ltd.

Project Summary
Founded in 1957, Dohwa Consulting Engineers is Korea’s oldest engineering firm. Dohwa employs 1,200 engineering and design professionals who have successfully completed more than 5,000 projects in Korea and abroad. With increasing demands from its principal client, the Korean government, Dohwa recently turned to Autodesk Civil 3D to overcome the limitations of 2D design in civil engineering workflows.

Using Autodesk Civil 3D, Dohwa is able to:

  • Complete road designs 40 percent faster
  • Reduce overall design costs by 50 percent
  • View an instant 3D image of roadway designs
  • Provide clients with multiple design alternatives
  • Make design changes quickly and easily

The Challenge
Typical Korean public roadway projects cost between 50 and 200 billion Korean won and require five to ten years from start to finish, including two or three years for project design. With such a large investment, engineering firms are often conservative when considering design changes.

Dohwa saw an opportunity to upgrade its design phase from static 2D to dynamic 3D civil design. Using the superior technology, Dohwa has a significant advantage over the competition still using traditional design tools.

“Changing designs with 2D tools required a lot of time and increased costs,” says Roh Hee-Chan, deputy manager of the road department at Dohwa. “Conventional 2D design does not include height data. Engineers must add actual measurements after design and use another program to insert a third dimension, which adds even more time and costs to the project.”

The Solution
To gain a competitive advantage quickly, Dohwa began training employees and demonstrating the capabilities of Autodesk Civil 3D software when it first became available. Both employees and clients were impressed with the software’s ability to use 3D measurements, reducing the need for additional height measurements. “Even if the plan requires changes after the initial lines are drawn, our designers can quickly make the change without redesigning from the start,” adds Hee- Chan. “Autodesk Civil 3D automatically reflects design changes, helping our engineers focus on design rather than reporting changes to other departments.”

3D Visualization Reduces Errors
Using Autodesk Civil 3D, Dohwa engineers can instantly view a 3D image of their designs. Engineers can easily see design errors or incorrect survey points before they turn into expensive mistakes. With visual inspections this early in the process, design accuracy improves—saving the time and costs associated with changes and corrections at later stages.

Putting Autodesk Civil 3D to the Test
Dohwa used Autodesk Civil 3D to redesign a national road interchange. The firm compared the results against traditional 2D design—a design where engineers manually added 3D data and survey points after initial design. “We used Autodesk Civil 3D software’s egg-shaped line design function to redesign the curves of the trumpet interchange,” says Hee Chan. “Our engineers appreciate the fact that they minimize repetitive tasks with the software’s design change functionality. They are able to design roads very close to the actual topography by using the cross-section editing capabilities.”

In addition, Dohwa can create multiple design alternatives in less time than it took to create one or two designs in 2D. Using Autodesk Civil 3D, engineers can give clients a richer choice of design options.

The Result
Dohwa concludes that Autodesk Civil 3D prevents errors by using actual 3D data, reducing repetitive tasks, and enabling engineers to see an instant view of their designs— reducing design time by 40 percent and overall design costs by more than 50 percent.

After witnessing the effectiveness of dynamic 3D design, Dohwa is hiring new engineers to meet Korea’s growing need for 3D simulation and modeling. In particular, it is using the interchange design comparison project as a training tool, enabling new hires to have hands- on practice with Autodesk Civil 3D.

Meeting Customer Requirements
“We see 3D design is becoming the dominant technology in the industry. Our principal client, the Korean government, demands 3D presentations for citizens who want information about a new project and the environmental impact,” says Hee-Chan. “We expect that our move to Autodesk Civil 3D will not only meet our clients’ needs and give Dohwa a competitive advantage, but also help to further develop Korea’s roadway infrastructure.”

To learn more about how Autodesk Civil 3D is helping organizations around the world complete projects faster and more cost effectively, visit www.autodesk.com/civil3D.