Model Risk Assessment

Thinking outside the box is always been a key in the Improvement and development of been processes and tools. For example, today in Vancouver BC, I was part of a joint health and safety committee meeting. This meeting  was convened to review workplace safety requirements from WorkSafeBC. One of the tools WorkSafeBC has created to simplify this is a website that helps you report incidences and track assessments, along with a risk matrix. When I saw the actual risk assessment tool that they use I realized it would be perfect for model assessment.

Risk Assessment

Every office has a slightly different system to help them model in Revit, but most of these systems do not help teams manage risk. A poorly modeled project can cost both the designer and your client money, and any systems you use needs to mitigate this risk.

The WorkSafeBC tool kit for a safe environment is a great starting point for a system that includes risk assessments in Revit models.

  • Modeling can cost a lot of money
  • If a project is incorrectly modeled it must be fixed, which will cost more money.
  • Mistakes in models and drawings can cause problems on site that result in unsatisfactory compromises.
  • Modeling errors can also provide misinformation to contractors and subconsultants.
  • Modeling omissions could cause a contract requirement to be unmet.
  • Poor modeling hampers lifecycle management, and project analysis.

A risk assessment audit of your model should help prevent all these issues. This assessment should include:

  • Review the detail level of model: Is it appropriate for the project? Does it meet the required Goals set out in the BIM Execution Plan?
  • Are there 2D families or an abundance of detail lines and filled regions?
  • Is the information in the model useful for the BIM Goals set out at the beginning of the project.
  • Review of legal and contract document information. Start with the basics: is the legal address and client information correct?
  • Do the families function correctly for Energy analysis, clash detection, scheduling, and tagging.
  • Can the model flow from phase to phase without a large amount of re-work or even a rebuild?

This list can be expanded and customized for each project as each project would need specific risk assessments according to the contract.

Inspiration can come from anywhere. This kind of cross-pollination of ideas will make BIM systems more robust and useful: it doesn’t matter if your ideas come from a government website or a presentation on the Transtheoretical Model of Change.

“One who takes the road less traveled earns the rewards most missed.” – Matshona Dhilwayo

Revit 2016 R2 released


Bam new stuff coming your way if you are on subscription.

Here’s the Autodesk videos

Here’s the official announcement from Autodesk:

Autodesk Revit 2016 R2 builds on the speed and project performance improvements that distinguish Revit 2016 and includes more than 25 updates, many requested by users. With further improved software performance and scalability, plus new features, the family of  Revit 2016 R2 releases enables subscribers to more effectively and efficiently capture design intent.

They have been focusing on performance, which will work well in the new world of adding more and more data to our models.

  • Orbit, pan and zoom more quickly with the new Draw Visible Elements Only option. Revit improves navigation speed by working only on displaying the visible elements of a view. This occlusion culling is especially beneficial with complex files and views in which regeneration of a significant amount of content is suppressed.
  • Keep working during update of color schemes and the associated color fills with Color Fill Background Processing. Revit 2016 R2 updates room, space, HVAC zone, duct, and pipe color fills using multiple CPUs, which alleviates model interaction delays associated with these computations.
  • Embed design intent in a model by using project-wide parameters to drive dimension and element instance parameters with the Global Parameters A global parameter can measure dimensions and calculate formulas to drive dimensions and parameter values in other elements in the project.
  • With Family Visibility Preview, get a better view of design intent by filtering out geometries that are not viewed. Work more quickly by previewing geometries and making adjustments before loading a Family into a project. – CAN I JUST SAY LOVE THIS ONE!!!!
  • Unload links per user to increase performance and improve memory usage without affecting other project team members
  • Copy/Paste commands in perspective views
  • Cancel print or export of multiple views and sheets with one click
  • Filter solids/voids in separate entries to more easily multi-select the geometries to make bulk changes
  • Enhanced rotation controls and insert part option in fabrication part modeling

A lot of these advancements make the our projects easier to manipulate and add data too.

It’s Monday morning time to check those Models

I usually reserve Monday’s for my Model Coordination task.  I believe the Model Coordination time is very important for projects to be successful and the BIM workflow.  This task needs to be completed while no one is in the model, and usually ends with a shake of the head and a ton of follow up training.  I can usually get my list complete within an hour for most projects.

Here’s the simple list of what I do on a weekly, and monthly basis.

  • Manage Links (checking for lost links or links from users’ desktops)
  • Check the Project Browser for ??? and organization according to standards
  • Check the number of groups and verify that no groups are just 1 instance.
  • Review the families loaded in the project, looking for families with the .00x.rfa extention, or family1.rfa
  • Check Filter and View Template naming conventions
  • 3D Inspection for workset organization
  • Check that the Levels and Grids are pinned.
  • Compact the model
  • Once a month I Audit, rebuild, and compact of the model.
  • Once a month I purge the model – (Do Not Purge All, remove unused Groups, CAD files, Missed named families and images.

During my process I make a list of items that need to be re-trained or trained.  These items become my Revit Coordination training sessions.

Each project has an Excel spread sheet saved in the BIM Docs folder; the Model Coordinator then fills it out weekly.  If the model coordinator is not me I just check the document to verify it’s getting done and look see if there is any glaring issues.

The Over Modeling affliction or OVM

There is a strange affliction happening in my office, it’s called Over Modeling (OVM).  This disease gets spread from staff member to staff member.  We have yet to find a cure for it, but we have established support groups to help those that understand they have a problem.

How can you tell if your office is afflicted with OVM?


  • Have people been asking questions about making the Stairs show exact in 3D, Section and Detail?
  • Have there been questions showing the correct curtain wall mullion in 3D?
  • Has the size of the model increased drastically in a matter of a week?

If you answered yes to any of these questions then your office may have OVM disease.  Don’t worry there is treatment for this disease, it takes time and effort with constant communication.


Thoughts and ideas on supporting users in a design technology world

There's no BIM like home

One man's dream to apply BIM and IOT to his smarthome

PPT Practitioner

Adventures in the world of People, Processes and Tools

Revit beyond BIM

Design from another point of view...