# MenkyoQuest — Question ch5_q019

Chapter: Ch. 5 Driving Method
Section: 第２節 自動車の通行するところ
Type: Multiple choice
Difficulty: hard

## Question
On a road with traffic lanes, which of the following statements about lane changes is correct?

## Options
A. For overtaking, you may freely change lanes at any time
B. Except when unavoidable, such as for overtaking, you must not cross out of your traffic lane or straddle two traffic lanes
C. You must always stay in the same traffic lane and must never change lanes under any circumstances
D. If there is no vehicle behind you, you may freely change lanes

## Correct answer
B. Except when unavoidable, such as for overtaking, you must not cross out of your traffic lane or straddle two traffic lanes

## Explanation
Rules of the Road, Chapter 5, Section 2, Item 3 states: "Except when unavoidable, such as for overtaking, you must not cross out of your traffic lane or straddle two traffic lanes." Lane changes are permitted when unavoidable, but in principle you must stay within the same lane.

## Driving school curriculum
Stage 1 – Topic 4: Where vehicles may and may not travel

## Source passage (Rules of the Road)
3 車線を変えずに走ること

## Tags
車両通行帯, 車線変更, 追越し, 通行方法

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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.