The C1 'Sentido Proibido' sign, meaning 'No Entry', is a prohibitory traffic sign used in Portugal. It explicitly forbids entry into the road or carriageway it faces, directing you to find an alternative legal route. As part of Portugal's regulatory signs, often displayed with a red border, it signifies a strict restriction that must be obeyed to ensure traffic flow and safety. Always be aware of any additional panels that might specify the scope of the prohibition.
Master the meaning of the C1 'Sentido Proibido' (No Entry) sign to ensure safe driving decisions and pass your Portuguese theory test. This essential road sign explanation details how to interpret this prohibitory traffic sign correctly, crucial for your exam preparation.
C1 - no entry (Sentido proibido) belongs to the Portuguese prohibitory signs category in the Regulamento de Sinalização do Trânsito. It normally uses the red-bordered regulatory style associated with restrictions, limits, bans, or cancellation of a previous restriction. The official wording is: sentido proibido: indicação da proibição de transitar no sentido para o qual o sinal está orientado. It creates a binding restriction from the point where it applies and normally continues until it is ended, replaced, or limited. 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.
C1 - no entry (Sentido proibido) means that the driver must understand and apply this official Portuguese instruction: sentido proibido: indicação da proibição de transitar no sentido para o qual o sinal está orientado. In practical terms, you should not enter from this direction and choose another legal route before committing to the street or carriageway.
Get clear, practical answers to the most common questions about the C1 - C1 - no entry (Sentido proibido) 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 C1 'Sentido Proibido' sign means 'No Entry'. It prohibits you from entering the road or carriageway in the direction the sign is facing. You must not proceed forward and should seek a different route.
The C1 sign prohibits any entry or movement into the road or carriageway it faces. This includes driving, attempting to enter, or any manoeuvre that goes against the direction indicated. Ignoring this sign is dangerous and illegal.
When you see the C1 'Sentido Proibido' sign, you must stop and find a lawful alternative route. Do not enter the restricted road. Look for other signs that might indicate permissible actions or the end of the restriction.
No, the C1 'Sentido Proibido' sign is a mandatory prohibitory sign and must be obeyed by all drivers unless explicitly directed otherwise by traffic police or specific, temporary instructions that override the sign. Always follow official directions.
A common mistake in the theory exam is confusing the C1 'Sentido Proibido' sign with signs that might indicate a one-way street where entry is permitted from the other direction, or mistaking it for a 'Do Not Enter' warning. The C1 specifically prohibits entry from the direction it's placed.
Yes, additional panels can be placed below the C1 sign to modify its scope. For example, a panel might state that the prohibition applies only to certain types of vehicles, during specific hours, or for particular manoeuvres. Always read and understand any accompanying panels.
A clear reference image of the C1 - C1 - no entry (Sentido proibido) road sign used in Portugal.

The C1 - C1 - no entry (Sentido proibido) road sign may also be known by these alternative names or terms.
The C1 - C1 - no entry (Sentido proibido) road sign is part of the Prohibitory Signs category, which groups together signs with similar rules and functions.
Reviewing similar road signs side-by-side is crucial for accurate theory test revision and sign recognition. Understanding the distinctions between these prohibitory signs will reduce confusion and improve your recall for the Portuguese driving exam.

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Understand the C11b 'No Left Turn' Road Sign in Portugal

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Obey the Maximum Speed Limit Indicated by the C13 Sign

The C14a 'No Overtaking' Sign Means You Must Not Overtake Most Vehicles
Learn the C14b Road Sign: No Overtaking for Heavy Vehicles

C14c Sign: No Overtaking for Motorcycles and Mopeds
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