NZ Post x inviol: Turning "unseen risk" into daily coaching wins
- 6 days ago
- 3 min read
At NZ Post, safety isn't a poster on the wall, it's part of how the operation performs every single day.
That matters when you're moving huge volumes through busy sites. NZ Post delivers just under 200 million delivery points, and delivered 81.9 million courier parcels in the 12 months to 1 April 2024. In FY2024/25, they delivered 88 million parcels and 158 million letters.
So when NZ Post started exploring AI safety technology, the goal wasn't to "catch people out". It was to make risk visible, build better habits, and help leaders coach the right things, faster.
The real challenge: busy sites + invisible patterns
NZ Post trialed inviol across a range of sites, including their largest interchange. At peak, that site can see around 140 trucks in about four hours.
In environments like that, traditional CCTV tends to be reactive: you look after the fact, when someone reports an issue. NZ Post summed it up simply: you can only go and find what you may be told about.
What they needed was a way to spot emerging risks – the near-misses and pressure patterns that don't always become incidents, until they do.
Why inviol: coach behaviours, don't police people
NZ Post was clear on the "why" early:
Not a "big brother" system
Not a "catcher" system
A tool to understand what's happening on the floor and change behaviour through coaching
inviol runs as an overlay on existing CCTV, surfacing risk patterns and recent moments to learn from.
That's the difference between, "we hope people are doing the right thing" and, "we can see what's actually happening, and support teams to improve it."
The simple operating system that made it work
NZ Post didn't treat AI as a "deploy it and forget it" project.
They built a rhythem around it: daily stand-ups, coaching moments, and clear ownership in the line.
A key decision: Safety didn't own the output, local supervisors did. That matters, because change happens where the work happens.
And importantly: NZ Post noted that when coaching stops (because the business gets busy), risk starts creeping back up, which reinforced why the routine matters.
What changed on site
NZ Post described the biggest shift as the quality of coaching and the tone it created.
When coaching is done well, they saw better forklift behaviour and better truck driver behaviour. And, "better outcomes...a reduction in risk."
They also found the system scales to different site profiles:
Large sites: more data early on, then refine to what matters most
Smaller site: a couple minutes a day to review and coach
And because the insights are fresh (in the last 24 hours), the daily stand-up becomes a place for real, specific conversations, not generic reminders.
NZ Post summed up their operating reality well: they balance safety, service, and cost, and safety can slip when the pressure's on – but inviol helped bring it "to the fore" every day.
Privacy and trust: designed in
Frontline acceptance matters. NZ Post highlighted the need to socialise how the technology would be used, and build confidence through demonstration.
They also called out privacy directly:
Faces are blurred
No personally identifiable information is captured
That let the conversation stay where it belongs: safer systems, safer habits, better coaching.
Better leadership decisions (and fewer "comfort rules")
One of the most powerful outcomes NZ Post described wasn't just operational, it was leadership clarity.
They found AI can challenge rules that look good on paper but don't hold up in a tight interchange (e.g., a fixed exclusion distance that's impossible to achieve).
Instead, teams can redesign processes and expectations based on what the data reveals.
It also improved assurance upward: showing decreases in risk activity and the impact of coaching.
What's next: scaling across 280+ sites
NZ Post has 280+ sites nationally, so scaling is about deploying where it will have the biggest impact first: risk-based rollout, backed by strong daily rhythms.
As they put it: the tech works – but it needs leadership and people behind it, otherwise it's just a smart screen that no one watches.
