The D12 sign, meaning 'End of the dedicated lane for public transport vehicles', indicates that a lane previously reserved for buses, taxis, and priority vehicles is now ending. As a driver, you need to be aware of this change in road layout and be prepared to merge or adjust your position safely. This mandatory sign in Portugal signals the termination of a specific lane usage rule, requiring drivers to follow the indicated direction or lane that becomes available.
This D12 sign indicates the end of a dedicated lane for public transport vehicles. Understanding its specific road sign meaning is crucial for navigating Portuguese roads correctly and preparing for your theory test.
D12 - Fim da via reservada a veículos de transporte público (Fim da via reservada a veículos de transporte público) belongs to the Portuguese mandatory signs category in the Regulamento de Sinalização do Trânsito. It normally uses the blue mandatory style, meaning the driver must perform the indicated positive action rather than merely avoid something. The official wording is: fim da via reservada a veículos de transporte público: indicação de que terminou a via reservada à circulação de veículos de transporte público regular de passageiros e automóveis de praça de letra A ou taxímetro, veículos prioritários e de polícia. It creates a positive duty to follow the indicated route, direction, lane, track, equipment requirement, or road-user rule. 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.
D12 - Fim da via reservada a veículos de transporte público (Fim da via reservada a veículos de transporte público) means that the driver must understand and apply this official Portuguese instruction: fim da via reservada a veículos de transporte público: indicação de que terminou a via reservada à circulação de veículos de transporte público regular de passageiros e automóveis de praça de letra A ou taxímetro, veículos prioritários e de polícia. In practical terms, you should position early and follow the indicated direction, route, lane, track, or road-user obligation without improvising a different movement.
Get clear, practical answers to the most common questions about the D12 - D12 - Fim da via reservada a veículos de transporte público (Fim da via reservada a veículos de transporte público) 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 D12 sign, officially 'Fim da via reservada a veículos de transporte público', signifies that a lane which was exclusively for public transport (like buses and taxis) and priority vehicles is concluding. You should prepare to change your driving plan accordingly.
When you see the D12 sign, it means the dedicated bus lane is ending. You should adjust your position early and follow the new lane configuration or direction indicated. Do not improvise a different manoeuvre and always be aware of other traffic.
The D12 sign falls under Portuguese mandatory signs, which create a positive duty. While it marks the end of a restriction for other vehicles (as the lane becomes generally available), it primarily signals the need to follow the ensuing traffic layout or direction, rather than prohibiting something specific.
A common mistake is confusing this sign with a prohibition sign, or failing to anticipate the lane change. Learners might also ignore the specific direction or route indicated after the lane ends. Always remember that understanding the sign's indication for the *next* step is crucial for the exam.
Yes, after the D12 sign, the lane that was previously reserved for public transport vehicles is typically no longer restricted. This means other vehicles, including your car, can now use it, but you must follow the lane's direction or where it leads.
A clear reference image of the D12 - D12 - Fim da via reservada a veículos de transporte público (Fim da via reservada a veículos de transporte público) road sign used in Portugal.

The D12 - D12 - Fim da via reservada a veículos de transporte público (Fim da via reservada a veículos de transporte público) road sign may also be known by these alternative names or terms.
The D12 - D12 - Fim da via reservada a veículos de transporte público (Fim da via reservada a veículos de transporte público) road sign is part of the Mandatory Signs category, which groups together signs with similar rules and functions.
Reviewing related signs side-by-side sharpens your ability to distinguish similar traffic signs, a key skill for theory test revision and safe driving. Master sign recognition and avoid common errors by comparing these important road signs.

D10: You Must Use Your Dipped Headlights (Médios)

D11a: Mandatory Lane for Goods Vehicles Ends Here

D11b: Mandatory Lane for Heavy Vehicles Ends Here

D11c: Mandatory Lane for Motorcycles Has Ended

You've Reached the End of the Mandatory Cycle Path: D13a Sign

D13b: Mandatory Footpath for Pedestrians Ends Here

D13c: The Mandatory Lane for Horse Riders Has Ended

D13d Sign: End of Mandatory Cattle Track
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