Spatial coordination for BIM for MEP systems

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When implementing BIM for MEP systems, the spatial coordination stage helps to ensure seamless integration across disciplines.

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In this stage, after the initial layout of the MEP networks is generated,

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clash detection is conducted on the Revit coordination model to identify conflicts between the MEP system and the architectural model.

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Clash detection is performed using Autodesk Navisworks Manage or Model Coordination in Autodesk Construction Cloud (ACC).

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Each solution plays a key role in efficient streamlining of project development.

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The key difference between Navisworks Clash Detection and Model Coordination lies in their workflows,

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level of automation, accessibility, and collaboration features.

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Model Coordination provides automated workflows with limited preparatory work, as well as visual results in the clash matrix.

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However, Navisworks allows for more file types and clearance detection, an important factor in constructability and safety considerations.

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Navisworks Manage is best used when more advanced, detailed clash detection is needed during more complex coordination workflows.

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Typically, it is used by BIM Managers or Coordinators who need a deep level of control over clash detection and reporting.

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Clash detection in Navisworks Manage is a manual, highly customizable process

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that allows users to define clash rules, filter clash results, and create clash reports.

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Users can run hard, soft, and clearance clashes with specific tolerances.

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It also supports clash grouping, rule-based filtering, and prioritization,

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and it integrates with TimeLiner, Quantification, and other Navisworks tools.

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It also supports a wide range of file formats, including IFC, RVT, DWG, NWC, NWD and many other authored formats.

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The results yield detailed insights, listing clashes by location, element ID, and interference distance.

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In contrast, Model Coordination provides cloud-based, automatic clash detection on models as soon as they are uploaded to ACC.

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There is no need to set up clash detection tests manually, and the intuitive interface makes collaboration easy.

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Model Coordination enables real-time issue tracking, clash grouping,

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and makes assignment of issues seamless because it works within BIM 360 Coordinate or Autodesk Build,

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and it integrates with Autodesk Docs for file management and issue tracking.

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All of this makes Model Coordination best used for broader teams early in the design phase.

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In addition, Model Coordination provides rule-based filtering and object exclusions

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without the requirement of maintaining selection sets as in Navisworks.

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Filters can be saved to views, whilst object exclusions are applicable to the coordination space.

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Also, the clash grid highlights areas requiring attention based on model division, rules, and issue definition.

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Users can define multiple views and fine-tune the clash matrix without the need to redefine selection sets or refresh clash tests.

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Once any detailed clash information is back in Revit from either tool,

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teams can immediately make changes to resolve conflicts directly within the live model.

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And after updates are made, clash detection is re-run to verify that all conflicts have been successfully resolved.

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This iterative process ensures a coordinated and clash-free design while maintaining project integrity.

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By leveraging Navisworks Manage, Model Coordination, and Revit,

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teams streamline coordination, minimize rework, and enhance project efficiency, paving the way for smooth execution in the next project phase.