右左折禁止オーストリア

わかりやすい説明と視覚的な例を使った図解付きの本で、交通ルールをシンプルかつ楽しく学べます。


26. 右左折禁止

右左折禁止は、交通標識で示された方向への右折、左折、またはUターンを禁止する規制です。交差点または指定道路区間で適用されます。

運転者は許可された経路を進み、車線矢印や指定方向標識に従います。この禁止はそれ自体で優先関係や速度を定めず、自転車、公共交通などへの例外は明示されている場合のみ適用されます。

右左折禁止
What is a turn prohibition?

A turn prohibition prevents drivers from making a particular turn or change of direction indicated by a traffic sign.

How can you recognise a turn-prohibition sign?

It is commonly a circular sign with a red border showing a crossed or barred turning arrow. The arrow indicates the movement that is prohibited.

What does a no-left-turn sign mean?

It prohibits drivers from turning left at the location or intersection to which the sign applies.

What does a no-right-turn sign mean?

It prohibits drivers from turning right at the location or intersection to which the sign applies.

What does a no-U-turn sign mean?

It prohibits drivers from turning around to travel in the opposite direction.

Is a prohibited turn the same as a mandatory direction?

No. A prohibition sign identifies a movement that may not be made. A mandatory-direction sign identifies the direction or directions that must be followed.

Is a turn prohibition the same as a no-entry sign?

No. A turn prohibition prevents a particular approach from turning into a road. A no-entry sign prohibits vehicles from entering the road from the direction where it is displayed.

Is a turn prohibition the same as one-way traffic?

No. A one-way rule controls the permitted direction along a road. A turn prohibition controls a particular movement at or near an intersection.

When does a turn prohibition apply?

It may apply at the sign, at the next intersection or throughout a stated section. Drivers must follow the sign design and the rules of the country concerned.

Can a turn prohibition be announced in advance?

Yes. An advance sign or supplementary distance panel may warn drivers that the prohibited turn is farther ahead.

Can the sign apply to only one lane?

Yes. A sign positioned above or clearly associated with one lane may apply only to drivers using that lane.

Do lane arrows also restrict turning?

Yes. Drivers must choose the correct lane and follow one of the directions displayed by its legally binding arrows.

Does a green traffic light permit a prohibited turn?

No. A green light permits traffic to proceed, but drivers must still respect turn prohibitions, lane arrows and other regulatory signs.

Does a turn prohibition change priority?

No. Drivers making another permitted movement must still follow traffic lights, priority signs and the ordinary rules concerning pedestrians, cyclists and other vehicles.

Does a turn prohibition impose a speed limit?

No. The applicable general, zonal or posted speed limit remains in force.

Must you use an indicator for a permitted turn?

Yes, where local law requires it. Signal early enough to communicate your intention and stop signalling after completing the movement.

Does signalling make a prohibited turn legal?

No. An indicator communicates an intention but cannot authorise a movement prohibited by a traffic sign.

May cyclists be exempted?

Yes. A supplementary sign may allow cyclists or other specified road users to make a turn that remains prohibited for general traffic.

May buses or taxis be exempted?

Public transport, taxis or other authorised vehicles may be exempted where a supplementary sign or local rule expressly permits the movement.

Does a no-left-turn sign also prohibit a U-turn?

Not universally. Some countries treat these as separate prohibitions. Drivers must check whether a separate no-U-turn sign or general rule applies.

May you turn into a driveway before the prohibited intersection?

This depends on the exact legal scope of the sign. A sign applying specifically to the next intersection may not regulate an earlier property entrance, but another sign or road marking may still prohibit the movement.

May you reverse to avoid the turn prohibition?

No. Do not reverse through traffic or into an intersection to evade the sign. Continue along a permitted route and change direction later where it is legal and safe.

What should you do after entering the wrong lane?

Follow the movement permitted from that lane. Do not turn suddenly across another lane or ignore the sign; continue and choose another legal route.

Can a temporary turn prohibition be binding?

Yes. Properly placed temporary signs near roadworks, incidents or events must be obeyed.

Do instructions from an authorised officer override the sign?

Yes. Follow instructions from an authorised traffic officer even when they differ from the displayed turn prohibition.

1 オーストリア 2 高速道路 3 自動車専用道路 4 住宅地域 5 ゾーン 6 速度制限 7 歩道 8 自転車道 9 歩行者・自転車共用道 10 トンネル 11 自転車優先道路 12 歩行者専用区域 13 一方通行 14 岸壁 15 勾配 16 バス専用レーン 17 バス停 18 行き止まり 19 一時停止標識 20 譲れ 21 ラウンドアバウト 22 優先道路 23 対向車に譲れ 24 踏切 25 指定方向 26 右左折禁止 27 学校周辺 28 追い越し 29 動物横断 30 逆走 31 道路工事 32 高さ制限 33 幅制限 34 重量制限 35 次の交差点で優先 36 信号機 37 歩行者信号 38 速度フィードバック 39 運転免許証 40 位置標識 41 道路反射鏡 42 非常電話 43 国境 44 自転車ルート 45 駐車 46 駐車禁止 47 停車禁止 48 障害者用駐車 49 後退 50 無規制交差点 51 路面 52 仮運転免許 53 緊急避難ランプ 54 市街地境界 55 自転車横断場所 56 クラクション 57 ナンバープレート 58 充電ステーション 59 一般危険 60 自転車利用者 61 バス 62 警察 63 救急車 64 警察官の交通合図 65 欧州排出ガス基準 66 ポットホール 67 私有地 68 通路 69 粒子状物質 70 大気汚染 71 ラッシュアワー 72 交通法規 73 道路側溝 74 カーゴバイク 75 林業車両 76 建設車両 77 セミトレーラートラック 78 トロリーバス 79 スピードペデレック 80 配送車両 81 アイドリング 82 レッカー車 83 四輪駆動 84 車両通行禁止 85 自転車 86 オートバイ装備 87 トラム 88 軌道 89 キャラバン 90 トレーラー 91 牽引ヒッチ 92 消防車 93 サイレン 94 車列 95 緊急車両の警光灯 96 農業機械 97 電動自転車 98 電気自動車 99 ペデレック 100 クアドリシクル ...