What happens to a port when a sudden traffic jam or a worker strike hits? Maersk now tests it on a copy first.
Ports are some of the most stressful places in the global economy. One delay, one strike, one storm, and the ripple spreads across thousands of shipments. The hard part is you cannot exactly "experiment" on a live port handling millions of containers.
So Maersk built a workaround: digital twins of its ports.
Think of it as a practice version of a real terminal. It runs on live data from the actual port, so it behaves like the real thing. Port teams can then ask difficult "what if" questions and see what breaks, without anything breaking in reality.
What this makes possible:
(a)Testing sudden disruptions, like traffic jams or labor strikes, in a safe digital copy.
(b) Spotting delays before they spread across the network.
(c) Smarter rerouting of ships to dodge congested ports.
(d) Real-time visibility across terminals, ships, and warehouses
Maersk's data chief put it simply: they pull inputs from terminals, sensors, and data across the network, and let the copy do the worrying.
This is resilience by rehearsal. You prepare for the bad day before it arrives.
Three simple takeaways:
1. You cannot stress test reality, but you can stress test a copy of it.
2. The goal is not to predict the future perfectly. It is to be ready for several versions of it.
3. Visibility is only useful if it helps you act before the problem spreads.
If you could run a "practice version" of your operation and throw one disaster at it, what would you test first?
A.P. Moller - Maersk Maersk Line, Limited
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