トラフィックサークルのデモンストレーション
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ラウンドアバウトの使い方
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ラウンドアバウトのルール
道路規則: ラウンドアバウト
Roundabout//Driving In a Roundabouts#roundabout #drivingtips
Roundabouts Are Safer. So Why Does The U.S. Have So Few Of Them?
RSA Ireland - Roundabouts (70sec version)
複数車線のラウンドアバウトを移動する
HOW TO DRIVE A ROUNDABOUT
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Safe Driving at the Roundabout /Traffic Circle and Mini Circle
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Amersfoort Turbo Roundabout