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NAVISWORKS Best Practices for Efficient Workflows: BIM Execution Plan


Navisworks Clash detection and coordination tools have gained traction in recent years. Clash detection is a method of identifying spaces or components that might conflict – or, in other words, share the same space. Navisworks Clash detection aids in the detection of design flaws prior to construction. However, most projects don’t budget enough for this process, and quality assurance/quality control is still done using a traditional 2D-drawing review method. The challenge is how to handle clashes effectively, rather than just identifying them.

Furthermore, we may simulate the walk-through experience with technology innovations like virtual reality (VR) and augmented reality (AR) for enhanced collaboration with clients and team members.

What is Navisworks used for?

Navisworks project review software is used to improve coordination on BIM (Building Information Modeling) project delivery. Autodesk Navisworks Manage is a model aggregator that combines 3D models and their related design data into a unified working environment for design review, coordination analysis, simulation, and presentation. Clash Detective, TimeLiner, Animator, Quantification Workbook, and other specialist Navisworks tools are available. This composite virtual project model may be interactively evaluated, displayed, and analyzed in numerous ways to validate the design and give predictability for building and operation.

Navisworks Clash Detection helps us to identify, prevent, and resolve conflicts in the virtual model before the real start of construction, lowering costs and scheduling risks while also reducing requested change orders and RFIs.

By merging spatial coordination with construction planning, Autodesk Navisworks Manage offers simulation, coordination analysis, and change management during active construction.


BIM Execution Plan

A BIM execution plan is a comprehensive document (or set of documents) that outlines all agreed-upon BIM collaboration methods. This document specifies processes, relationships, responsibilities, regulations, model/data requirements, BIM purposes, and objectives as a reference during the project and as a record at the end.

Elements of a BIM Execution Plan 

1. Model Requirements for Coordination (LOD)

Planning is the most crucial component of the design coordination process, but many individuals underestimate its complexity. BIM Execution Plan typically outlines WHO will model WHAT information and WHEN it will be modeled, as well as a Model Component Table. The term “level of development” (LOD) refers to the many stages at which parts in a model will be created over the course of a project’s lifespan.

It’s necessary to specify the minimum size of a design object that needs to be modeled in the BIM Execution Plan so that the models may be assessed during clash review. In addition, the team should agree on a method for modeling and checking clearance zones, such as accessibility space needs and operation and maintenance access zones.

2. Quality Control Check

Performing an interference check to identify areas or components that share space is part of the quality control process for identifying design conflicts before construction. 

Following are four layers of quality control checks which we typically include in the project’s BIM Execution Plan.

  1. Visual Check – Ensure that there are no unintended model components and the design intent is followed
  2. Interference Check – Detect problems in the model where two or more components are conflicting/clashing
  3. Standard Check – Ensure that the project has followed the company’s BIM & CAD standard.
  4. Model Integrity CheckEnsure that the project adhered to the company’s BIM standards and Data is free of errors, undefined items, and duplicates. This will also provide a reporting mechanism if there are any discrepancies in the data presented and suggest the corrective action plan

Elements of a BIM Execution Plan

3. Clash Review Workflow

The Project Engineer/Architect conducts a weekly (or daily) “Design Review” with the cooperation of the BIM Manager. The goal is to check the design in a bigger framework. The second step involves conducting clash reviews at key milestones (30%-60%-90%) or weekly/biweekly, depending on the project. Usually, a clash review should be conducted out during important construction milestones. 

Stages of schematic design (30%), design development (60%), and construction documents (90 %). 

Identify and share all of the grouped clash objects as Navisworks Viewpoints and give the team the published format, NWD file to examine in Navisworks Freedom (viewer). Also, make the conflict report available in HTML (Tabular) and converted it to PDF (a single document with all images embedded).

4. Coordination Analysis Strategy

The BIM manager and discipline leads should design a coordination plan with an analytical method (“System A” vs. “System B”) for clash review during the BIM Execution Planning phase. Typically clash reviews are conducted during key milestones. After 30 percent completion, some design-build projects may require a weekly clash review.

Navisworks Clash Detection has become indispensable in BIM design workflows because of its remarkable capabilities such as time-based clash detection, photorealistic visualization, quick file sharing, and automated referencing of numerous CAD files. Civil engineers, architects, and structural engineers, as well as mechanical, electrical, and plumbing experts, are increasingly using Navisworks in construction projects. Navisworks Clash Detection is also being used by non-engineers who need to visualize a project.

To conclude, Clash detection programming and software will turn out to be all the more remarkable with a comprehensive BIM Execution Plan.

However, BIM selection and implementation has its set of objections, fundamental among them being:

  • Large investment in expensive software
  • Scarcity of qualified and skilled resources
  • Infrastructure requirements to support BIM technology

Therefore Outsourcing BIM services is recommended as a proven, efficient and feasible solution to overcome the challenges of BIM implementation.

Indovance Inc. delivers a full range of BIM modeling projects. We work on parametric family creation, clash detection, model creation for all LOD (Level of Detail), 4D, 5D and 6D support and model phasing, as well. We also provide complete support for CAD to BIM, point cloud to BIM, and PDF to BIM conversions.

For more queries regarding any of the above-mentioned topics, feel free to connect with us on our website www.indovance.com or contact us on  +1-919-238-4044 


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