The "no lane change" marking always prohibits lane changes for vehicles in the lanes on both sides of it.

Explanation

It depends on the pattern. In figure (2), only vehicles travelling in lane B are prohibited from moving into lane A.

Guides that explain this

• Japanese Signs That Mean the Opposite of What You Assume: Crosswind, End of Restriction, Minimum Speed
• Japanese Road Signs on the Written Test: The 5 Types Explained

Related terms

• Vehicle (sharyō)

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