The ST5 road sign, officially 'Desvio para a faixa de rodagem contrária', is a crucial temporary traffic sign in Portugal. It signals that you must deviate onto the opposing lane due to road works, obstacles, or incidents. This means you need to slow down, be extra vigilant, and follow the temporary lane markings or instructions until the affected section ends, as normal road layouts and priorities will differ.
This ST5 sign signals a necessary deviation to the opposite carriageway, requiring your immediate attention and adaptation. Mastering its road sign meaning is vital for theory test revision and safe navigation through Portuguese traffic.
ST5 - Desvio para a faixa de rodagem contrária (Desvio para a faixa de rodagem contrária) belongs to the Portuguese temporary vertical signs category in the Regulamento de Sinalização do Trânsito. Visually, this belongs to the temporary-road-signing environment, where yellow signs, movable equipment, barriers, cones, beacons, or alignment devices guide traffic around works, closures, obstacles, and temporary hazards. The official wording is: desvio para a faixa de rodagem contrária. It reflects the current temporary layout and must be treated as the active instruction where works, incidents, closures, or obstacles change normal conditions. 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.
ST5 - Desvio para a faixa de rodagem contrária (Desvio para a faixa de rodagem contrária) means that the driver must understand and apply this official Portuguese instruction: desvio para a faixa de rodagem contrária. In practical terms, you should slow down, follow the temporary channel or instruction, and expect lanes, priorities, workers, obstacles, or carriageway limits to differ from normal.
Get clear, practical answers to the most common questions about the ST5 - ST5 - Desvio para a faixa de rodagem contrária (Desvio para a faixa de rodagem contrária) 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 ST5 sign means you must divert onto the opposite carriageway. This is a temporary measure, usually put in place for road works, incidents, or obstacles. You should anticipate changes in lane layout and be prepared to adjust your driving accordingly.
Upon seeing the ST5 sign, you must reduce your speed significantly. Follow any temporary lane markings, cones, or barriers directing you to the opposite lane. Maintain a safe distance from other vehicles, workers, and obstacles, and be prepared for altered traffic flow.
Understanding the ST5 sign is vital for the Portuguese theory exam because it tests your ability to recognise and react correctly to temporary traffic situations. Failing to interpret it correctly can lead to dangerous driving or points deduction. You need to show you understand the implications of deviating onto an opposing lane.
When the ST5 sign is displayed, you are prohibited from driving into areas that are coned off, barred, closed, or temporarily redirected. You should also not assume the normal road layout is still in effect through the work zone, and it's forbidden to pass workers, obstacles, or narrowed lanes too quickly or too closely.
No, if the ST5 sign is displayed, it indicates that the regular lane you would normally use is obstructed or closed. You are required to follow the indicated deviation onto the opposite carriageway as directed by the temporary signage.
When following the deviation indicated by the ST5 sign, be aware that lane widths, traffic priorities, and the overall road layout will be temporarily altered. You must always expect the unexpected and drive defensively, keeping extra clearance around any potential hazards.
A clear reference image of the ST5 - ST5 - Desvio para a faixa de rodagem contrária (Desvio para a faixa de rodagem contrária) road sign used in Portugal.

The ST5 - ST5 - Desvio para a faixa de rodagem contrária (Desvio para a faixa de rodagem contrária) road sign may also be known by these alternative names or terms.
The ST5 - ST5 - Desvio para a faixa de rodagem contrária (Desvio para a faixa de rodagem contrária) road sign is part of the Temporary Vertical Signs category, which groups together signs with similar rules and functions.
Reviewing related road signs like 'Desvio para a faixa de rodagem contrária' alongside similar temporary signs aids recognition and prevents confusion. This comparative approach sharpens your understanding of traffic sign specifics, crucial for passing your Portuguese theory test revision.

ST10 Circulação Alternada: Navigating Temporary Traffic Flow

ST11 Trânsito sujeito a demora: Prepare for Delays and Temporary Road Changes

ST12: Understand the Emergency Telephone Sign for Temporary Traffic Management

ST13 Accident Sign: Navigate Safely Around Incident Sites

ST14 Fim de Obras: End of Temporary Roadworks Zone Sign

ST1a: Understand the Number and Direction of Traffic Lanes

ST1b: Follow Temporary Lane Numbers and Directions

ST1c: Follow the Temporary Lane Number and Direction Instructions
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