Located in an undulating area spanning 98 kilometers across the Yunnan and Guizhou provinces, the Guizhou Zhenxiong-Hezhang-Liupanshui Expressway features 75 bridges and 34 tunnels. The long mileage, multiple disciplines, and heavy safety supervision presented several challenges that could not be accommodated by previous traditional CAD modeling. The design and construction companies needed to establish digital workflows and a construction management platform to deliver the project.

They selected ContextCapture and Bentley’s open modeling applications, including OpenRoads and MicroStation, to generate reality and BIM models. They also established a collaborative digital platform to share and manage project data, saving an estimated CNY 900,000. By integrating the construction schedule with the BIM model to simulate construction, they shortened the construction period by 76 days and reduced costs by CNY 10.94 million. They plan on using the models to develop a digital twin for intelligent lifecycle management, promoting digital development within transportation.