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A yellow diamond carrying a downward slope and a gradient figure.
Also known as: Steep hill downward Japan
Warns of a steep descent ahead on a Japanese road, with the gradient given as a percentage.
Warns of a steep downward gradient ahead and states its steepness.
Contexts: Road signage
Is the sign an escape lane is signed from on Japanese mountain expressways, where a long descent at a stated gradient is the condition the runaway ramp exists for.
Contexts: Road signage
A square stood on one corner containing a wedge falling from left to right with a numeral and a per-cent mark set beside it.
The ascending counterpart of the same warning.