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A yellow warning board ahead of a restriction.
Also known as: TSR warning board, Advance speed warning board
A British lineside board placed in advance of a temporary speed restriction, warning of a lower limit ahead.
Warns of a temporary speed restriction beginning ahead and states the speed that will apply.
Contexts: Public information
Is placed at full braking distance before the restriction, so the warning and the restriction are two separate signs at two separate places, which is why both records exist.
Contexts: Public information
Is a distinct sign from the permanent speed restriction board, which states a lasting property of the line rather than a temporary one imposed on it.
Contexts: Public information
A large board carrying a figure, placed at braking distance before the restriction it warns of rather than at the restriction itself.