# MenkyoQuest — Question ch1_sign_50

Chapter: Ch. 1 Common Conduct
Section: 第２節 信号
Type: True/False
Difficulty: hard

## Question
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).

## Correct 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 curriculum
Stage 1 – Topic 2: Following traffic signals

## Source passage (Rules of the Road)
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.

## Tags
信号, 警察官の手信号, 頭上, 停止, ひっかけ

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Source basis: National Police Agency's official Rules of the Road manual (Public Domain under Article 13 §2 of Japan's Copyright Act).
Copyright on AI-drafted explanations belongs to the MenkyoQuest team.