The C11a road sign, officially 'Proibição de virar à direita' (Prohibition of Right Turn), is a crucial prohibitory sign in Portugal. It clearly indicates that turning right at the upcoming intersection is strictly forbidden. As part of Portugal's regulatory signage, this red-bordered sign demands your full attention to traffic rules and your intended manoeuvre. Drivers must comply with this restriction and seek an alternative, lawful route.
This explanation details the C11a 'No Right Turn' sign, crucial for mastering Portuguese driving theory and exam preparation. Understand its specific meaning and implications for safe navigation and compliance with traffic rules.
C11a - Proibição de virar à direita (Proibição de virar à direita) 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: proibição de virar à direita: indicação da proibição de virar à direita na próxima intersecção. 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.
C11a - Proibição de virar à direita (Proibição de virar à direita) means that the driver must understand and apply this official Portuguese instruction: proibição de virar à direita: indicação da proibição de virar à direita na próxima intersecção. In practical terms, you should avoid the prohibited entry, movement, vehicle use, parking, stopping, overtaking, speed, or other restricted action until the restriction is ended or limited by another sign.
Get clear, practical answers to the most common questions about the C11a - C11a - Proibição de virar à direita (Proibição de virar à direita) 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 C11a sign means 'Proibição de virar à direita', which translates to 'Prohibition of Right Turn'. It signifies that you are not allowed to turn right at the next intersection or point where the sign is applicable.
When you see the C11a sign, you must continue straight ahead or turn left if permitted. You cannot make a right turn at the upcoming junction. Always look for alternative routes or wait for signs that may end this prohibition.
Yes, like all Portuguese prohibitory signs in the Regulamento de Sinalização do Trânsito, the C11a sign creates a binding restriction. Failing to comply can result in penalties, and it's a key concept tested in the theory exam.
Generally, there are no exceptions unless an additional panel (painel adicional) is present with the C11a sign, specifying particular vehicle types or times when the prohibition applies or does not apply. Always check for such panels.
The C11a sign is a prohibition and should be obeyed regardless of traffic light signals. If a traffic light is green for a right turn but the C11a sign is present, you must still not turn right. Always prioritize regulatory signs over traffic lights when they conflict, unless specific instructions from traffic police are given.
A clear reference image of the C11a - C11a - Proibição de virar à direita (Proibição de virar à direita) road sign used in Portugal.

The C11a - C11a - Proibição de virar à direita (Proibição de virar à direita) road sign may also be known by these alternative names or terms.
The C11a - C11a - Proibição de virar à direita (Proibição de virar à direita) road sign is part of the Prohibitory Signs category, which groups together signs with similar rules and functions.
Reviewing related prohibitory signs helps solidify your knowledge and avoid common mistakes. Comparing similar road signs aids in accurate recognition and strengthens recall for your theory test revision.

Understand the C1 'Sentido Proibido' (No Entry) Road Sign

C10: Maintain Minimum Distance from Vehicle Ahead

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

C12 Sign: No U-Turns Allowed Ahead

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