The PA11i is a supplementary traffic sign used in Portugal, designed to work with a main road sign to specify which types of vehicles the instruction applies to. When you see this panel below another sign, it means the main sign's prohibition, obligation, or restriction is only for the vehicle types shown on the panel. For example, model 11i specifically refers to agricultural vehicles, meaning a general speed limit sign might only apply to tractors in that location. Always read the PA11i panel together with the main sign to understand its exact scope and to apply the correct driving behaviour.
This supplementary panel, PA11i, is crucial for understanding the scope of traffic regulations in Portugal. It specifies exactly which types of vehicles are subject to the main sign's rules, making accurate interpretation vital for your theory test revision and safe driving.
PA11i - Painéis indicadores de veículos a que se aplica a regulamentação (Painéis indicadores de veículos a que se aplica a regulamentação) belongs to the Portuguese additional panels category in the Regulamento de Sinalização do Trânsito. Visually, this is a supplementary plate placed with a main sign; its position matters because it completes or limits that main sign instead of standing alone. The official wording is: painéis indicadores de veículos a que se aplica a regulamentação: destinam-se a indicar que a obrigação, restrição ou proibição especial constante do sinal apenas se aplica aos veículos que figurarem no painel; o modelo n.º 11a deve utilizar-se para automóveis ligeiros de passageiros e mistos, o modelo n.º 11b, para automóveis de mercadorias, o modelo n.º 11c, para automóveis pesados de passageiros, o modelo n.º 11d, para veículos portadores do dístico de deficiente, o modelo n.º 11e, para automóveis pesados de mercadorias, o modelo n.º 11f, para motociclos, o modelo n.º 11g, para ciclomotores, o modelo n.º 11h, para velocípedes, e o modelo n.º 11i, para veículos agrícolas. It must be read together with the main sign; alone it is incomplete, but together it can change distance, duration, direction, affected users, or exceptions. 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.
PA11i - Painéis indicadores de veículos a que se aplica a regulamentação (Painéis indicadores de veículos a que se aplica a regulamentação) means that the driver must understand and apply this official Portuguese instruction: painéis indicadores de veículos a que se aplica a regulamentação: destinam-se a indicar que a obrigação, restrição ou proibição especial constante do sinal apenas se aplica aos veículos que figurarem no painel; o modelo n.º 11a deve utilizar-se para automóveis ligeiros de passageiros e mistos, o modelo n.º 11b, para automóveis de mercadorias, o modelo n.º 11c, para automóveis pesados de passageiros, o modelo n.º 11d, para veículos portadores do dístico de deficiente, o modelo n.º 11e, para automóveis pesados de mercadorias, o modelo n.º 11f, para motociclos, o modelo n.º 11g, para ciclomotores, o modelo n.º 11h, para velocípedes, e o modelo n.º 11i, para veículos agrícolas. In practical terms, you should read the panel together with the main sign and apply the distance, extent, direction, time, vehicle class, exception, or condition shown on the panel.
Get clear, practical answers to the most common questions about the PA11i - PA11i - Painéis indicadores de veículos a que se aplica a regulamentação (Painéis indicadores de veículos a que se aplica a regulamentação) 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 PA11i panel is used in Portugal to indicate that a main traffic sign's instruction (like a prohibition or obligation) applies only to specific types of vehicles. This helps to make road regulations more precise, ensuring that rules are only enforced for the intended users, such as agricultural vehicles for the PA11i model.
You must always read the PA11i panel in conjunction with the main sign it's attached to. It clarifies which vehicles the main sign's message is directed at. For example, if a 'No Entry' sign has a PA11i panel showing agricultural vehicles, only agricultural vehicles are prohibited from entering, while other vehicles may proceed.
A common mistake is to ignore the PA11i panel and assume the main sign applies to all vehicles. Another error is not understanding that this panel modifies the scope of the main sign, potentially leading to a wrong answer about whether a rule applies to your vehicle. Always consider the vehicle type specified on the panel.
No, the PA11i panel is a supplementary sign and cannot be interpreted on its own. It is designed to provide additional information to a primary traffic sign, altering or specifying its meaning. You must always look at the main sign above it to understand the complete traffic instruction.
The PA11i model, as indicated in its official Portuguese meaning, specifically refers to agricultural vehicles. Therefore, if you see a PA11i panel, any restriction or obligation presented by the main sign above it is applicable only to agricultural vehicles.
A clear reference image of the PA11i - PA11i - Painéis indicadores de veículos a que se aplica a regulamentação (Painéis indicadores de veículos a que se aplica a regulamentação) road sign used in Portugal.

The PA11i - PA11i - Painéis indicadores de veículos a que se aplica a regulamentação (Painéis indicadores de veículos a que se aplica a regulamentação) road sign may also be known by these alternative names or terms.
The PA11i - PA11i - Painéis indicadores de veículos a que se aplica a regulamentação (Painéis indicadores de veículos a que se aplica a regulamentação) road sign is part of the Additional Panels category, which groups together signs with similar rules and functions.
Master Portuguese road signs by comparing similar symbols. Understanding distinctions between related signs like these aids sign recognition and reduces theory test mistakes. Effective traffic sign comparison is key for exam preparation and safe driving.

PA10a: The Additional Panel That Modifies Road Sign Instructions

PA10b: Understand and Apply Instructions on Additional Indicator Panels

PA10c Additional Panel: Modifying Main Signs for Electric Vehicles

PA10d Panel: Specific Instructions for Electric Vehicles While Charging

PA10e: Additional Panel indicating a specific application or exception for the main sign.

PA11a: This Additional Panel Specifies Which Vehicles a Sign Applies To

PA11b: This Additional Panel Specifies Which Vehicles the Main Sign Applies To

Understand Additional Panels: PA11c Applies Rules to Specific Vehicles
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