The O2b Kilometric Marker sign, or "Demarcação quilométrica da via", is an information sign used in Portugal. It displays the route identification and your distance in kilometres to its origin, helping you plan your journey. While it provides crucial navigational data, remember to always combine this information with general traffic rules, speed limits, and priority regulations to ensure safe driving.
Master the O2b kilometric marker sign for your Portuguese theory test revision. This sign helps you understand your position and plan your journey effectively, crucial for safe driving and passing your exam.
O2b - Demarcação quilométrica da via (Demarcação quilométrica da via) 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: demarcação quilométrica da via: devem conter a identificação da via e indicam a distância quilométrica ao seu ponto de origem. 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.
O2b - Demarcação quilométrica da via (Demarcação quilométrica da via) means that the driver must understand and apply this official Portuguese instruction: demarcação quilométrica da via: devem conter a identificação da via e indicam a distância quilométrica ao seu ponto de origem. 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 O2b - O2b - Demarcação quilométrica da via (Demarcação quilométrica da via) 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 O2b sign's main purpose is to inform drivers about their current location on a specific road by showing the route identification and the distance in kilometres to its starting point. This information is vital for navigation and journey planning.
You should use the distance information from the O2b sign to plan your speed, lane choices, potential stopping points, or observation strategy. However, it's crucial not to treat this sign as permission to ignore other traffic laws or signs.
No, the O2b sign does not alter general traffic rules such as speed limits, priority at junctions, or lane discipline. It's an informational sign intended to aid planning, and you must always adhere to the Código da Estrada while using its guidance.
A common mistake is assuming the O2b sign grants special privileges or overrides other regulations. Learners might also struggle to recall its specific meaning or how it relates to planning driving decisions. Always remember it's for planning, not permission to break rules.
You will typically see the O2b sign on Portuguese roads, particularly highways and major routes, where it serves as a consistent reference point. It's often placed at regular intervals to help drivers track their progress along the identified route.
A clear reference image of the O2b - O2b - Demarcação quilométrica da via (Demarcação quilométrica da via) road sign used in Portugal.

The O2b - O2b - Demarcação quilométrica da via (Demarcação quilométrica da via) road sign may also be known by these alternative names or terms.
The O2b - O2b - Demarcação quilométrica da via (Demarcação quilométrica da via) road sign is part of the Complementary Signs category, which groups together signs with similar rules and functions.
Reviewing related road signs like this one aids recognition and reduces confusion for your theory test revision. Explore other traffic signs to master sign recognition and improve your understanding of Portuguese road markings and traffic rules.

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O1d Hectometre Marker: Use Roadside Markers for Safe Planning in Portugal

O2a Kilometric Marker Sign: Your Guide to Road Distance Information

Understand the O2c Kilometre Marker: Your Guide to Route Planning Information

Understand the O2d Road Sign: Your Kilometer Marker

The O2e Sign: Understanding Portugal's Kilometre Markers on the Road
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