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At handover
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Two shifts stand in the same aisle for ten minutes. One crew is
explaining what the machine did overnight, the other is already
reaching for the tools. Nobody is watching the aisle.
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During a changeover
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Guards are open, tools are in hand, and a line that costs money is
standing still. The rules have not changed. The time people give
themselves to follow them has.
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Maintenance while the plant runs
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One machine is isolated and the two beside it are not. The work
happens in a metre of floor that belongs to both, and the person
doing it has their back to the gangway.
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When somebody new is on the floor
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New starters, agency staff, a contractor crew in for a shutdown.
They can read the markings. They cannot know that the tugger train
comes through at half past six, or which door opens outwards.
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On the way to the store
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The gangway between two running machines is wide enough for a
person or for a pallet truck. Twenty times a shift it is used by
both, and the person is the one carrying something with two hands.
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In the last twenty minutes
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Coolant on the floor, swarf under a bench, an air line pulled
across for one job. None of it looked dangerous when it was put
there, and all of it is on the route the early shift walks.
Not one of these is somebody breaking a rule. They are ordinary hours
in a production week, and they are the hours a briefing room cannot
reproduce.