Ch. 1 · Common Conduct
When a police officer raises an arm overhead, traffic in front must stop, but traffic to the sides may proceed while slowing down to a stop-ready speed (jokō).
[True / False · Hard]
Answer: ✕ False
Explanation
When a police officer raises an arm vertically, it has the same meaning as a yellow light for traffic facing the officer's front and back, and the same meaning as a red light for traffic running parallel to the officer's sides. So traffic to the sides must also stop, and this statement—that side traffic may proceed slowly—is incorrect.
Driving school curriculumStage 1 – Topic 2: Following traffic signals
Source: Ch. 1 Common Conduct · Section (第２節 信号) · Rules of the Road, Ch.1 §2 (Signals, Signs & Markings) / 1. Signals: Drivers must obey traffic-signal lights. When a police officer or traffic-directing officer is controlling traffic by hand signals or flashlight, those signals override the traffic-signal lights.
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Source content excerpted from the NPA “Rules of the Road” instructional manual, in the public domain under Japanese Copyright Act Article 13(2). Explanations are AI-assisted and copyrighted by the MenkyoQuest editorial team.