Photo:

CattleGuard.jpg

Description:

Mistake-proofing for Cows? Perhaps this is not classical example of mistake-proofing but I think it still counts. Cows cannot cross but cars and trucks can. The western US also has examples where the bars are just paint stripes on the pavement; but by all accounts, they are supposed to work.

Categories:

Mistake-proofing category: Mistake prevention
Setting function: Physical
Regulatory function: Forced Control
Source: Off-the-shelf

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Secondary Problems (side effects, weakness or concerns) with this example:

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{create links here to other examples that are comparable}