The ET13 sign is a temporary luminous arrow used in Portugal to signal a sudden and significant change in direction. As part of Portugal's temporary signalling equipment, it means you must follow the indicated temporary path and adjust your driving accordingly. Drivers should slow down, be alert for altered road layouts, and treat this instruction as the current, active guidance until the temporary section concludes.
This ET13 sign indicates a sharp, temporary change in direction on Portuguese roads, requiring careful observation and immediate adaptation of your driving. Understanding its meaning is crucial for your theory test revision and safe navigation around roadworks or incidents.
ET13 - Seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção (Seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção) belongs to the Portuguese temporary signalling equipment 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: seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção. 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.
ET13 - Seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção (Seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção) means that the driver must understand and apply this official Portuguese instruction: seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção. 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 ET13 - ET13 - Seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção (Seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção) 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 ET13 sign, officially 'Seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção', is a temporary luminous arrow. It indicates that you must follow a sharp, sudden change in direction due to temporary road conditions like works or obstacles.
When you see the ET13 sign, you should slow down, follow the direction indicated by the luminous arrow, and be prepared for altered lane configurations or road boundaries. Treat it as the active instruction for your current route.
The ET13 sign is a mandatory instruction that forms part of temporary signalling equipment. While it warns of a change, its primary function is to direct traffic through a temporary layout, so you must follow the indicated direction.
A common trap is assuming the permanent road layout is still in effect. Always remember that temporary signs like ET13 override permanent markings or layouts when works or incidents are present. Failing to slow down or follow the temporary path can lead to incorrect answers in the theory exam.
No, you must not drive into areas coned, barred, closed, or temporarily redirected. The ET13 sign guides you along the temporary, safe path around these areas. It's crucial to follow the indicated temporary route and not assume normal road conditions.
A clear reference image of the ET13 - ET13 - Seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção (Seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção) road sign used in Portugal.

The ET13 - ET13 - Seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção (Seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção) road sign may also be known by these alternative names or terms.
The ET13 - ET13 - Seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção (Seta luminosa, a utilizar na sinalização de posição, indicando mudança brusca de direcção) road sign is part of the Temporary Signalling Equipment category, which groups together signs with similar rules and functions.
Comparing similar road signs like the ET13 temporary arrow helps solidify your understanding and improves recognition speed. This targeted traffic sign comparison is crucial for effective theory test revision and mastering sign recognition.

ET1 Raquetas de Sinalização: Follow Manual Traffic Direction Instructions

Understand the ET10 Temporary Signalling Equipment road sign for works and diversions.

ET11 Robot Sign: Follow Temporary Traffic Guidance

ET12: Temporary Signalling Equipment Indicating a Sudden Change in Direction

Follow Temporary Lane Guidance with the ET2 Baias Direccionais Sign

ET3 Baia de Posição: Navigate Temporary Road Closures and Works

Follow the ET4 Baliza de alinhamento: Your Guide Through Temporary Road Layouts

ET5 Balizas de posição: Follow Temporary Traffic Channels Safely
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