3D Walkthrough for Site Induction Training: Walk the Job Before Day One
A 3D walkthrough for site induction training lets a new starter walk the actual job, hazards and all, before their boots touch the ground. What it takes to capture a live site and turn induction into more than a signature on a form.
A new joiner's first morning on a job usually starts in a portakabin, not on the site itself. They watch a slideshow of photos that might be six months old, sign a form saying they understand the layout, and walk out onto ground that looks nothing like what they just saw. A 3D walkthrough for site induction training closes that gap before anyone reaches for a hi-vis vest, letting the new starter walk the actual site, as it stands this week, from a browser tab. The first time they see the live trench or the crane's working radius stops being the first time they're standing next to it.
Induction that describes a site nobody has actually seen
Most site inductions are built around a general hazard list and a set of photos taken whenever someone last had a camera out. They cover fall protection, PPE, fire points, muster stations: the things true of every site the company runs, and about as far as most construction safety induction training actually goes. What they don't cover is what's different about this one, this week. The scaffold tie-in still being finished. The section of hoarding that blew down on Tuesday. The delivery route that shifted because the crane pad moved. A new starter walks past all of it having been told about none of it.
That gap costs more than an awkward first hour. First-year employees account for 44% of injuries in construction and drive 47% of workers' compensation claim costs, according to Travelers' 2026 Injury Impact Report, an analysis of more than a million construction claims. The report doesn't point to missing paperwork. It's unfamiliarity: new starters don't recognise a site's actual hazards fast enough, because nobody showed them the site. They were shown a description of one.
What a live capture changes
A point cloud stays a cloud of measured points: accurate, but sparse, and hard to read for anyone who isn't a surveyor. Reconstruct the same site data as a Gaussian Splat scene and it reads as continuous, photoreal surfaces instead of a diagram of them. That difference matters for induction specifically, because the person on the other end of the link isn't verifying a survey. They're trying to recognise a doorway, a trip hazard, a barrier line, at a glance, the way they'll actually see it on Monday.
The capture itself is ordinary footage. A phone walked around the compound, drone footage over the wider site, or a 360 camera carried through every corridor and stairwell in one pass. Processing runs in the cloud, 10 to 120 minutes depending on the site, with no GPU and nothing to install. What comes out opens on a phone, a tablet, a laptop or a VR headset, with no app and no software licence to chase down before the first induction session.
None of that footage is shot for a marketing reel. It's ordinary walkthrough video turned into something that builds site-specific hazard awareness rather than a photo pack a new starter skims once and forgets. The same underlying capture already shows up in weekly progress walks; pointing it at induction instead is a different set of hotspots on the same scene, not a different pipeline.
Building a 3D walkthrough for site induction training
Capture the site as it actually stands
One walk with a phone or a 360 camera covers a compound in about twenty minutes. A drone pass adds the wider site, the laydown yard, the access roads a ground-level walk misses. On a live site with restricted access, the capture rides along with a walk the site manager was already doing. Processing takes 10 to 120 minutes in the cloud, and what comes back is a scene in .spz, .ply, .splat or .ksplat, whichever the viewer needs.
Drop hotspots on what's actually there this week
The scene itself is the walkthrough, but the hotspots are the induction. Text, image, video and link hotspots go directly onto the open trench, the live crane radius, the muster point, the fire point, the delivery gate. A new starter clicks through roughly the same sequence a site manager would walk them through in person, except they can do it twice, slowly, from home, before the induction session rather than during it.
Put it in front of new starters before they arrive
Share the scene as a link, an embed on the induction paperwork, or a QR code on the site notice board. It opens on whatever device the new starter already has. A subcontractor's crew arriving for a single week doesn't need a login or a headset booked out. They need a link that opens the same walkthrough on a phone screen in the van outside the gate.
Recapture as the site changes
A site from six weeks ago is a different site. Multi Splat aligns two captures of the same site and renders the difference as a 4D timelapse, a fast way to check what actually moved between the last induction refresh and this one, rather than trusting someone to remember to update a slide.
Fold it into records that already exist
A one-off link works for a small crew, but a firm running new starter safety orientation across a dozen active sites usually wants the scene pulled into whatever system already tracks induction sign-off. The reconstruction API returns the same scene an LMS or induction platform can embed directly, rather than someone copying a link into a spreadsheet every time a site gets recaptured.
Objections
Does this replace the induction, or the pack?
It replaces the photos, not the paperwork. The walkthrough is what a new starter sees. The induction record, the RAMS sign-off, the competency checks stay exactly where they already sit. A site induction walkthrough gets someone recognising the site faster, not signed off on it. It is not a substitute for a supervisor confirming they understood it.
Is it accurate enough to rely on for hazard positions?
For orientation, yes. Hotspots sit where the capture puts them, and a Gaussian Splat scene of a corridor or a compound reads at the scale a person actually walks it. It is not a substitute for a surveyor's measured drawing when a dimension has to hold up in a dispute. Different job, same site data.
Who has to learn a new tool?
The person capturing the site needs a phone or a drone they likely already carry. The person walking the induction needs nothing beyond a link. Nobody on either end learns new software before this ships to a new starter.
A new starter clicking through hotspots is not the same as a supervisor confirming they understood the hazards. Keep the signature, the toolbox talk and the RAMS review exactly where they already sit in the induction process.
What happens when the walkthrough goes stale?
A walkthrough of a trench that's since been backfilled is worse than no walkthrough, because it teaches the wrong picture with total confidence. Treat it like a toolbox talk, not an archive. Recapture on a schedule that matches how fast the site actually changes: weekly on an active groundworks phase, monthly once the shell is up.
Log the date of each recapture against the site's phase plan, and check it before an induction session, not after a new starter has already walked past a hazard that moved since.
| Photo pack and walked induction | 3D walkthrough | |
|---|---|---|
| Time before first shift | None; the induction happens on arrival | Available days ahead, from anywhere |
| What's shown | Photos taken whenever someone remembered | The site as it stood at the last capture |
| Who can access it remotely | Nobody; induction happens on site | Anyone with the link, on any device |
| Currency | Updated when someone rebuilds the slide deck | Recaptured on a schedule, checked against the last one with Multi Splat |
| Cost to redo | A supervisor's time, every single induction | 10 to 120 minutes of processing, no shoot day for minor changes |
FAQ
Does a 3D walkthrough replace a face-to-face site induction?
No. A walkthrough like this replaces the photo pack and the guesswork about layout, but the sign-off, the RAMS review and the supervisor conversation stay in place. It's what a new starter sees before that conversation, not instead of it.
How long does it take to capture a site for induction?
A single compound walked with a phone or 360 camera takes about as long as the walk itself, and processing runs 10 to 120 minutes in the cloud. A wider site with a drone pass over laydown yards and access roads adds time on site but not on the processing end.
Can subcontractors and visitors use it without an account?
Yes. A shared link, an embed on the induction paperwork, or a QR code on the site board opens the scene on whatever device they already have, with no login and no headset required unless one happens to be available.
A site induction walkthrough like this was never meant to replace the walk on day one. It just means the site did the explaining once already, on a screen, before anyone reached the gate. By the time a new starter gets there, the trench, the crane radius and the muster point are already familiar, not because someone described them well, but because the starter already walked past them, once, before the first shift began.