The I6 sign, officially 'Pré-sinalização de itinerário', is an advance direction sign used in Portugal to guide you on the required route, especially when a specific manoeuvre like turning left is restricted at the upcoming intersection. It provides essential information about destinations, lane allocations, and route numbers well in advance, allowing you to plan your manoeuvre safely and predictably. Understanding these signs is key to avoiding last-minute decisions and ensuring smooth traffic flow, crucial for both your driving practice and passing the Portuguese theory exam.
Mastering the I6 Advance Route Signage is crucial for theory test success, helping you interpret Portuguese traffic rules and navigate junctions effectively. This explanation guides you on recognizing and responding to route guidance signs for safer driving.
I6 - Pré-sinalização de itinerário (Pré-sinalização de itinerário) belongs to the Portuguese advance direction signs category in the Regulamento de Sinalização do Trânsito. It uses arrows, panels, destinations, route numbers, lanes, or place names to guide the driver before the actual decision point. The official wording is: pré-sinalização de itinerário: indica o itinerário que é necessário seguir para virar à esquerda nos casos em que esta manobra está interdita na intersecção mais próxima, devendo o esquema do itinerário ser ajustado à configuração das vias. It supports route and lane decisions before the decision point, reducing late braking, hesitation, and unsafe lane changes. 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.
I6 - Pré-sinalização de itinerário (Pré-sinalização de itinerário) means that the driver must understand and apply this official Portuguese instruction: pré-sinalização de itinerário: indica o itinerário que é necessário seguir para virar à esquerda nos casos em que esta manobra está interdita na intersecção mais próxima, devendo o esquema do itinerário ser ajustado à configuração das vias. In practical terms, you should read the arrows, destinations, lane allocation, and route information early enough to choose a safe and predictable lane.
Get clear, practical answers to the most common questions about the I6 - I6 - Pré-sinalização de itinerário (Pré-sinalização de itinerário) 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 I6 sign is a Portuguese advance direction sign indicating the necessary route to follow, particularly when a manoeuvre like turning left is prohibited at the very next intersection. It shows you the detour or alternative route you must take well before you reach the junction, helping you prepare.
Upon seeing the I6 sign, you should read the information carefully, noting the destinations, route numbers, and any lane indications. You need to choose the correct lane early to follow the indicated itinerary. Avoid sudden braking or lane changes after seeing this sign; plan your route in advance.
The I6 sign tests your ability to understand and react to advance directional information, a critical aspect of safe driving in Portugal. You'll be tested on recognizing the sign, understanding its implication for your route, and selecting the correct behaviour, such as choosing the appropriate lane or preparing for a specific turn further ahead.
The I6 sign specifically indicates the route you must follow, often because a particular manoeuvre, like turning left, is prohibited at the very next intersection. It's crucial to follow the route indicated by the sign, rather than attempting the prohibited manoeuvre directly at the intersection.
The I6 sign can be accompanied by additional panels providing more specific information, such as distances or specific conditions. You should also interpret it alongside road markings, traffic lights, and any temporary traffic management signs to make your driving decisions.
A clear reference image of the I6 - I6 - Pré-sinalização de itinerário (Pré-sinalização de itinerário) road sign used in Portugal.

The I6 - I6 - Pré-sinalização de itinerário (Pré-sinalização de itinerário) road sign may also be known by these alternative names or terms.
The I6 - I6 - Pré-sinalização de itinerário (Pré-sinalização de itinerário) road sign is part of the Advance Direction Signs category, which groups together signs with similar rules and functions.
Comparing advance direction signs like I6 helps solidify your understanding of Portuguese traffic rules and improves sign recognition for your theory test revision. Effective traffic sign comparison reduces confusion and builds confidence for exam preparation.

I1 Simplified Advance Warning: Prepare for Your Route Decisions

Understand the I2a Pré-aviso Gráfico: Your Graphic Advance Direction Sign

I2b: Understand Portuguese Graphical Advance Warning Signs for Route Planning

Prepare for the I2c Advance Graphic Warning Sign with Portuguese Driving Rules

Prepare for your route with the I2d graphic advance warning sign.

Understand the I2e Advance Graphic Pre-warning Sign for Route Planning

I2f Pré-aviso gráfico: Graphical Advance Direction Sign

I3a Reduced Advance Warning: Plan Your Route Early
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I4b - Aproximação de via de saída para a área de serviço (Aproximação de via de saída para a área de serviço) belongs to the Portuguese advance direction signs category in the Regulamento de Sinalização do Trânsito. It uses arrows, panels, destinations, route numbers, lanes, or place names to guide the driver before the actual decision point. The official wording is: aproximação de via de saída para a área de serviço: indicação da aproximação de uma via de saída para uma área de serviço; este sinal deve conter, além da indicação dos serviços fundamentais prestados, a distância à próxima área de serviço, podendo ainda conter a designação da área de serviço. It supports route and lane decisions before the decision point, reducing late braking, hesitation, and unsafe lane changes. 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.
I2a - Pré-aviso gráfico (Pré-aviso gráfico) belongs to the Portuguese advance direction signs category in the Regulamento de Sinalização do Trânsito. It uses arrows, panels, destinations, route numbers, lanes, or place names to guide the driver before the actual decision point. The official wording is: pré-aviso gráfico: deve conter os destinos referidos a cada uma das direcções do esquema gráfico, bem como a identificação das estradas que lhes estão associadas. It supports route and lane decisions before the decision point, reducing late braking, hesitation, and unsafe lane changes. 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