When a vehicle signals that it is changing lanes in order to leave the road, the vehicle behind it must not obstruct that lane change — unless yielding would force the following vehicle to change its speed or direction suddenly.

道路外に出ようとする車が合図をして進路を変えようとしているとき、後ろの車は、急に速度や方向を変えなければならなくなる場合を除いて、その進路変更を妨げてはならない。

This statement is TRUE

Explanation

This matches Article 25(3). The following driver has a duty to let the signaling vehicle move over, with one exception: if giving way would require sudden braking or a sudden change of direction, the duty does not apply.

Original text

その後方にある車両は、その速度又は方向を急に変更しなければならないこととなる場合を除き、当該合図をした車両の進路の変更を妨げてはならない。

Source: Road Traffic Act — 道路交通法第二十五条（道路外に出る場合の方法） · Act No.105 of 1960

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Signalling (aizu)

When a vehicle signals that it is changing lanes in order to leave the road, the vehicle behind it must not obstruct that lane change — unless yielding would force the following vehicle to change its speed or direction suddenly.

Explanation

Original text

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