After an intensive design process of six months, the design of the bicycle tunnel under the N237 in De Bilt is now ready for building. During the design process, we worked closely with our partners to get the best design.
The engineering of the entire project was done in 3d using #Autodesk # Civil3d, #Navisworks, #Formit and #InfraWorks. During the weekly design sessions with the designing parties, there was coordination between the models and various design considerations were made based on the #BIM model.
The current small bicycle tunnel dates from 1956 and is being converted into a fauna tunnel. The new bicycle tunnel will be close to the existing bicycle tunnel. For that reason, the existing bicycle tunnel has also been worked out in 3d on the basis of survey data and the old hand-drawn design.
Because we have a lot of 3d information available, we can develop and fit the design into a high level of detail. We did that with the following objects:
• New Bicycle Tunnel (Tekla IFC)
• Existing Bicycle Tunnel (AutoCAD 3d solids)
• Handrail (IFC)
• Buffer sewer (STEP)
• Rainwater System (Civil 3d Pipe Network)
• Bicycle bridge (IFC)
• Retaining walls (AutoCAD 3d solids)
• Small fauna tunnel (AutoCAD 3d solids)
• Cables and pipes (AutoCAD 3d solids)
• Bicycle paths, footpaths and roads (Civil 3d Corridors)
• Houses and buildings (Formit)
• Gaurdrail (AutoCAD 3d solids)
• Stairs (IFC and AutoCAD 3d solids)
• Street furniture such as bicycle parking, ABRIs and traffic signs (Formit, AutoCAD 3d solids)
• The basis is lidar, a data from our surveyors and Point Clouds.
You can see the result in the video.