Cold chain exception boards without temperature theater

Temperature plots impress visitors and exhaust supervisors. For seafood and pharma lanes we favor three signals: probe breach duration, ice-plant wait, and plug-out to gate time.

Keep the legend short

If the night lead needs a training course to read the board, the board failed. Color and a single threshold line beat a rainbow scale.

Respect the driver’s story

When maps omit the ice-plant wait that every driver names, trust collapses. Put that wait on the lane flow even if it never appears in the ERP.