I am starting this discussion to find out how others are coordinating multi-building projects. Our team is coming from a BIM360 Model Coordination background, where you would set up a Model Coordination space for each building, and another for site utilities. With Revizto, I feel like this can be achieved in a single project. See below for my current theory on how this would work.
1. Once Horizontal control is received from the design team, the Architectural and Site Grading model Survey Point is set to "Civil Coordinates". The Project Base Point is then placed on an agreed Grid Intersection for each building. This allows each sub-contractor the ability to choose how they want to setup their Revit/AutoCAD project.
2. A new Revizto project is setup and the model positioning is set to Shared Coordinates.
3. Each subcontractor will have a separate Revit/AutoCAD Project for each building, and will have to choose an alignment point described in step 1. If the subcontractor uses Project Base Point, we add a Scene Transformation by calculating how far the Project Base Point is from the Survey point. If the subcontractor chooses to align to Civil Coordinates, then no further work is needed (this will be recommended).
Pros: This will allow for easy coordination between the site and building utility subcontractors. All issues can be tracked in one place and will allow the field team to view all buildings on the mobile app in one project.
Cons: For our past Revizto projects, we set up a Level and Grids model to remove excess levels. One possible issue is that multiple buildings will have the same grid letters/numbers, same level names and different finish floor heights. Revit does not allow the same grid/level names. So I am wondering if it is best to have a Level/Grid model for each building, but I am curious on how an issue's metadata will read that? For example if I want to filter clashes on the First Floor level and there are 3, how will that work? I assume we will need to use Zones instead.
Please note that I have not tested any of this, and that's why I am reaching out to the community to see if anyone has come across a workflow. I look forward to reading any input on this topic.
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