How a VR headset saved $300K in the first week on the Fremantle Bridge project
Are you prepared for what’s next in AECO?
I'll be honest with you. I used to think VR in construction was mostly for show.
You know the use case: put a headset on a client, let them walk through a digital version of what's being built, everyone's impressed, the headset goes back in the case and gathers dust until the next stakeholder presentation.
On the Fremantle Bridge project in Western Australia, I found out I was wrong. Not slightly wrong. Significantly wrong.
The project that changed my thinking
The Fremantle Bridge alliance project involves replacing an existing bridge over the Swan River — a culturally significant crossing in Western Australia — while keeping traffic moving on the existing structure for as long as possible. We were given a 12-month window to complete the main construction once the bridge was closed. Twelve months. No extension.
That constraint meant we needed to pre-build as much of the new bridge as possible while the old one was still in use, running live traffic directly alongside our construction activity. Every construction sequence needed to be planned with precision. Every lift, every clearance had to be verified before it happened on site. There was no room to figure things out as we went.
We used Revizto to digitally build every step of every construction activity for the entire bridge. LOD 350 models from every trade. The whole sequence staged step by step — the kind of 4D construction sequencing that Revizto's Unified 2D/3D Environment makes possible at that level of detail without requiring a separate simulation tool. Then we had a VR headset sitting in the office, and we thought: why not push the Revizto model through it?
$300k saved in one week — not from errors, but from reality
Within the first week of using VR for construction review, we identified $300,000 AUD in cost avoidance.
Not from finding errors in the model. From finding things that looked fine on screen but were physically impossible when you were standing inside them. A piece of equipment had clearance on the model. But when a superintendent stood inside the virtual space and looked up, it wasn't workable. You can measure a clearance on a drawing. You can't feel whether it's achievable until you're standing in the space.
I watched our project technical lead in a VR headset, on the floor, crawling to verify whether a specific operation was physically executable. These were not marketing moments. They were real engineering decisions being made better because people had access to a spatial experience of what they were reviewing.
The AR/VR and QR Codes capability in Revizto meant that what we were viewing in the headset was the same live federated model the coordination team was working in — not a separate visualization export, not a static snapshot. The model we reviewed in VR was the model we built from.
Why this wasn't a separate workflow
We didn't implement VR as a new process. We did the hard work in Revizto — the 4D staging, the step-by-step construction sequence, the federated model — and VR was just another way to view it. The effort was already done. Pushing it into a headset was plug and play.
The $300K saved in week one didn't require a new budget line or a new team. It required a laptop, a headset, and a model we'd already built.
Our Alliance Director said something I've thought about since: without digital, this bridge would take an extra 12 months to build. On a project with a fixed December completion date, that's not a figure of speech. It's the difference between delivery and failure.
What I'd tell anyone managing infrastructure projects
Embrace the change. Don't wait for someone to prove the value of digital tools before you invest in them. The teams that wait are the ones who spend the first month of a critical project building the capability they should have built before they started.
The technology is there. The workflows are proven. The question is only whether you're willing to do the setup work that makes it possible.
If you want to see how 4D sequencing and VR review could work on your next infrastructure project, talk to the Revizto team today.
FAQs
VR saves money on infrastructure construction projects by allowing teams to identify spatial and sequencing problems that are not detectable on screen before they become on-site errors. When engineers and superintendents stand inside a virtual representation of a construction sequence, they can verify whether clearances are workable, whether equipment movements are physically executable, and whether planned sequences hold up under spatial scrutiny — decisions that would otherwise only be tested in the field, where corrections are significantly more expensive. On the Fremantle Bridge project, VR review of a Revizto 4D model identified $300,000 AUD in cost avoidance within the first week of use.
4D construction sequencing is the process of attaching time and construction sequence information to a 3D building information model, allowing project teams to review every step of a construction activity digitally before it begins on site. On bridge projects where construction sequences are constrained by live traffic, tidal windows, or fixed completion deadlines, 4D sequencing allows teams to identify conflicts, verify clearances, and optimize activity order without the cost of discovering problems during construction. When combined with VR review, 4D models can be experienced spatially rather than just viewed on screen, revealing issues that are invisible in a two-dimensional representation.
Revizto supports VR and AR on infrastructure construction projects through its AR/VR and QR code capabilities, which allow project teams to push their live federated model into a VR headset or AR device without creating a separate visualization export. Because the VR view is connected to the same model being used for coordination, teams are always reviewing current information rather than a static snapshot. This means that VR review sessions produce findings that can be immediately addressed in the coordination environment, rather than requiring a separate workflow to translate VR observations back into the working model.
Federated model coordination involves combining models from multiple disciplines — structural, mechanical, electrical, civil — into a single shared environment where conflicts can be identified and resolved across the full scope of the project. On large infrastructure projects, federated coordination is essential because the number of discipline interactions is too high for any individual team to track manually. A properly federated model allows coordination to run systematically across every discipline combination, with automation rules routing issues to the responsible team and tracking resolution status in real time.
Construction teams use digital tools to meet fixed-deadline infrastructure projects by front-loading coordination, sequencing, and conflict resolution into the pre-construction phase rather than discovering problems on site. This involves building detailed LOD 350 models from every trade, staging the full construction sequence digitally, using clash detection automation to resolve conflicts before work begins, and reviewing critical sequences in VR to verify spatial feasibility. The goal is to reach the construction start date with a fully resolved model and a tested sequence, so that the on-site team is executing a verified plan rather than resolving problems in real time under schedule pressure.
