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A blue plate carrying an extra lane on a rising road.
Also known as: Climbing lane Japan, Crawler lane Japan
Marks a Japanese climbing lane, an added slow lane on a sustained gradient.
Puts the added lane on the left because Japan drives on the left and slow traffic keeps left, which mirrors the equivalent sign in right-driving countries and is the kind of detail a reader comparing two photographs will notice first.
Contexts: Road signage
A wide rectangle in a solid tone carrying a set of lane strokes of which one branches off to the left and runs alongside the others.