A plate reading "Reason for Restriction" shows the reason for the traffic restriction indicated by the main sign.

「規制理由」と書かれた標識は、その本標識が示す交通規制の理由を表すものである。

This statement is TRUE

Explanation

Appendix Table 3 defines No. 87 as showing the reason for the traffic restriction indicated by the main sign. The statement is correct. (Source: Rules of the Road, Appendix Table 3: Types and Meanings of Signs and Markings)

Original text

規制理由　87　本標識が表示する交通の規制の理由

Source: Rules of the Road — 交通の方法に関する教則付表3 標識・標示の種類と意味 · National Public Safety Commission Notification No.3

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

A plate reading "Reason for Restriction" shows the reason for the traffic restriction indicated by the main sign.

Explanation

Original text

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