All Clashes Are Not Equal: Managing Design Side Clash Detection – Geoffrey Maulion

Clash Detection is increasingly being required by clients from the Design Team contractually as a general service.

What is expected from the Design Team throughout the design phases, especially at the end of CD’s, is rarely explicitly laid out. The goal of the Design Team is to reduce the number of RFI’s and change orders that would occur during construction.

Is the design team expected to have ZERO clashes at the end CD’s? What does ZERO clashes even mean? Is it even possible? If so, how do we get there? These are the questions that need to be addressed at the beginning of the project. An integrated project team including design team, owner, and construction team is the most conducive to the success of design phase clash detection. You will never get to ZERO clashes without the participation of the construction team during design.

Throughout, design clashes will consistently be found in the thousands. One of the biggest mistakes a design team will make will be to try to sit down in a big room, hit the clash button, and address every single clash. This is not a fun process and leads to the whole effort falling to the way side. This class will cover how to manage and filter those clashes down to meaningful clashes that affect the design or cost money to change down the road.

This session is not an Autodesk Navisworks how-to instruction manual. It will cover the management issues that need to be addressed throughout the design phase. Finding meaningful clashes is one thing, but if there is no follow through to address those clashes then the effort is meaningless. How do you foster accountability from all the team members even if they are distributed across multiple offices/disciplines? At what points during the design phase do you initiate clash detection? How much time do you budget? How much scope do you cover and what types of clashes take priority at each point? Who needs to be involved? Is this process scalable for different project sizes, types, and budgets? These are the questions this session will attempt to answer whether you are on the design team, or on the construction or owner team setting expectations. The key is to sit down at the beginning with the entire team and figure out how you will answer these questions for your specific project.


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Geoffrey Maulion, Associate, Perkins+Will