The Nanjing–Jurong intercity rail transit project required the design and construction of a complex cross-city rail line within the Jiangsu urban rail network. The project spans 26.9 kilometers of elevated and ground track and 16.8 kilometers of underground track, incorporating six elevated stations and seven underground stations.
A key challenge was the design of a 10-kilometer viaduct integrated with two stations, requiring high precision and coordination across multiple engineering disciplines. The project also needed to ensure compatibility with dense surrounding urban infrastructure while maintaining safety, efficiency, and cost control.
The project team implemented a collaborative digital engineering approach using Bentley technologies. ProjectWise enabled centralized data management and improved coordination across all disciplines, significantly reducing design conflicts and errors.
By integrating reality modeling with building information modeling (BIM), the team optimized the rail transit bridge layout within the context of surrounding buildings. This allowed for more accurate planning, improved structural alignment, and enhanced overall design quality.
Advanced tools such as ContextCapture, Descartes, LumenRT, MicroStation, OpenRoads, and ProStructures were used to support visualization, modeling, and engineering workflows throughout the project lifecycle.
The use of Bentley’s integrated digital solutions significantly improved project efficiency and outcomes. Bridge design time was reduced by approximately 360 hours, accelerating the overall project timeline.
Through optimized design and improved coordination, the project achieved cost savings of approximately CNY 2.8 million. The final design delivered enhanced safety, better alignment with surrounding infrastructure, and a more rational and efficient rail system.
The project demonstrates the effectiveness of combining digital twin technologies with collaborative workflows in delivering large-scale urban infrastructure projects.
