The H27 road sign, officially 'Inversão do sentido de marcha', precisely indicates the designated location where you are permitted to perform a U-turn (inversão do sentido de marcha) maneuver. As an information sign within the Portuguese traffic regulations, it guides you to specific points on the road suitable for this action. Always remember that this sign provides official information about a possible maneuver, but you must still comply with all general traffic rules, such as priority, speed, and safe observation, before and during the U-turn.
Master the H27 'Inversão do sentido de marcha' sign, crucial for Portuguese theory test revision and understanding where U-turns are permitted. This road sign explanation clarifies exact locations for safe U-turns, ensuring you can confidently interpret traffic rules and prepare for your driving test.
H27 - Inversão do sentido de marcha (Inversão do sentido de marcha) belongs to the Portuguese information signs category in the Regulamento de Sinalização do Trânsito. It uses the official information-sign format for its function, often a rectangular or square panel with a symbol, word, route, or facility indication. The official wording is: inversão do sentido de marcha: indicação do local exacto onde é possível a realização da manobra de inversão do sentido de marcha. It gives official information about the road environment, services, restrictions, facilities, or conditions that should influence safe planning. For theory preparation, connect the sign to a concrete driving decision: where to look, when to slow, whether to stop or yield, which route or lane to choose, and whether any panel changes the scope of the rule. On the road, interpret it together with markings, traffic lights, police directions, temporary works signs, and any additional panel placed with it. A strong exam answer explains both recognition and behaviour: not only what the sign is called, but what a safe and lawful driver must do next.
H27 - Inversão do sentido de marcha (Inversão do sentido de marcha) means that the driver must understand and apply this official Portuguese instruction: inversão do sentido de marcha: indicação do local exacto onde é possível a realização da manobra de inversão do sentido de marcha. In practical terms, you should use the information to plan speed, lane position, route choice, stopping, parking, or observation without treating it as permission to ignore other traffic rules.
Get clear, practical answers to the most common questions about the H27 - H27 - Inversão do sentido de marcha (Inversão do sentido de marcha) road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the Portuguese driving theory exam in Portugal.
The H27 sign, meaning 'Inversão do sentido de marcha', indicates the exact spot where you are allowed to perform a U-turn. It's a directional information sign guiding you to a permitted U-turn location.
No, the H27 sign does not compel you to make a U-turn. It simply informs you that this is a designated and safe place to do so if you need or wish to perform that maneuver, provided it is safe and legal at that moment.
When you see the H27 sign, you should plan your speed and lane position to safely execute a U-turn at the indicated spot. Crucially, you must still check for oncoming traffic, pedestrians, and cyclists, and ensure you yield to them as required by general traffic rules.
Yes, while the H27 sign indicates a place where a U-turn is permitted, you must never ignore other traffic rules. This includes yielding to other traffic, ensuring sufficient visibility, and not obstructing the normal flow of traffic. Treating this sign as permission to disregard general safety rules is a common exam trap.
General Portuguese rules may prohibit U-turns in many locations. The H27 sign specifically designates a point where this prohibition is lifted, indicating it is safe and legal to perform the maneuver, provided all other safety checks are performed.
A clear reference image of the H27 - H27 - Inversão do sentido de marcha (Inversão do sentido de marcha) road sign used in Portugal.

The H27 - H27 - Inversão do sentido de marcha (Inversão do sentido de marcha) road sign may also be known by these alternative names or terms.
The H27 - H27 - Inversão do sentido de marcha (Inversão do sentido de marcha) road sign is part of the Information Signs category, which groups together signs with similar rules and functions.
Comparing signs like the H27 'Inversão do sentido de marcha' with similar ones sharpens your sign recognition skills for the Portuguese theory test. This targeted traffic sign comparison helps reinforce your driving knowledge and reduces errors during exam preparation.

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O4a - Sinal de aproximação de saída (Sinal de aproximação de saída) belongs to the Portuguese complementary signs category in the Regulamento de Sinalização do Trânsito. It uses the official information-sign format for its function, often a rectangular or square panel with a symbol, word, route, or facility indication. The official wording is: sinal de aproximação de saída: indicação da aproximação de uma saída em intersecção desnivelada, dada pelas barras inclinadas, que representam as distâncias à saída; cada barra corresponde a uma distância à saída de 250 m em auto-estradas e de 150 m nos restantes casos, devendo a indicação numérica constar na parte superior do sinal. It gives official information about the road environment, services, restrictions, facilities, or conditions that should influence safe planning. For theory preparation, connect the sign to a concrete driving decision: where to look, when to slow, whether to stop or yield, which route or lane to choose, and whether any panel changes the scope of the rule. On the road, interpret it together with markings, traffic lights, police directions, temporary works signs, and any additional panel placed with it. A strong exam answer explains both recognition and behaviour: not only what the sign is called, but what a safe and lawful driver must do next.
O4b - Sinal de aproximação de saída (Sinal de aproximação de saída) belongs to the Portuguese complementary signs category in the Regulamento de Sinalização do Trânsito. It uses the official information-sign format for its function, often a rectangular or square panel with a symbol, word, route, or facility indication. The official wording is: sinal de aproximação de saída: indicação da aproximação de uma saída em intersecção desnivelada, dada pelas barras inclinadas, que representam as distâncias à saída; cada barra corresponde a uma distância à saída de 250 m em auto-estradas e de 150 m nos restantes casos, devendo a indicação numérica constar na parte superior do sinal. It gives official information about the road environment, services, restrictions, facilities, or conditions that should influence safe planning. For theory preparation, connect the sign to a concrete driving decision: where to look, when to slow, whether to stop or yield, which route or lane to choose, and whether any panel changes the scope of the rule. On the road, interpret it together with markings, traffic lights, police directions, temporary works signs, and any additional panel placed with it. A strong exam answer explains both recognition and behaviour: not only what the sign is called, but what a safe and lawful driver must do next.
After reviewing the full list, explore signs by specific categories such as warning, regulatory, or informational to deepen your understanding. Practise recognizing signs in context and prepare effectively for your Portuguese driving licence theory test.
All Portuguese Road Signs List