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Is Shipping Measuring the Wrong Reliability?

A ship can be on time. The box can still be late.

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Maritime Analytica
Sep 25, 2026
∙ Paid

Global schedule reliability fell to ~56% in July.

Late vessels averaged ~6 days behind schedule.

Those numbers matter.

But they measure vessel arrivals.

Not the full cargo journey.

A ship can arrive on time.

The box can still miss a connection.

It can wait at the terminal. Or reach the customer days later.

So is shipping measuring the right thing?

Here are 5️⃣ signals behind it:


1️⃣ Carrier performance varies sharply

On-time performance in July:

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