Step 1. The big picture
In one sentence…
Master the hierarchy between officers, temporary signage, traffic lights, vertical signs and road markings. In the exam you must recognise which order prevails, what conduct each sign requires, and when a temporary indication changes what you would normally expect to see on the road.
Step 2. The syllabus
2.1Hierarchy of signage
The priority between signs is not arbitrary: first you obey officers' orders, then temporary signage, then traffic lights, then vertical signs and finally road markings.
- If two signs appear to contradict each other, the higher-ranking one prevails. In the exam, many questions are solved by remembering this hierarchy before looking at shape or colour.
- Signs apply from the point where they are placed, unless they indicate a distance, the length of a stretch, or the end of a prohibition.
- Practise saying out loud which source is in charge in each scene: officer, roadworks, traffic light, vertical sign or marking. That order stops you answering out of habit when faced with similar images.
2.2Families of signs
Danger warning signs warn of a risk; regulatory signs impose prohibitions or obligations; information signs guide, confirm or inform about the use of the road.
- Traffic lights regulate passage with priority over an incompatible vertical sign. The lights may be aimed at all road users or at a specific lane, vehicle or manoeuvre.
- Road markings define lanes, excluded areas, pedestrian crossings, continuous or broken lines, and rules on stopping, parking and priority.
- Don't just memorise colours: link shape, message and required conduct. A question can hide the answer in a single word like obligation, prohibition, priority or information.
2.3Practical reading in the exam
Don't study signs as isolated pictures: link each one to the required conduct, the vehicle's position and the anticipation needed.
- At a junction, a priority sign outweighs the general priority-to-the-right rule. At roadworks, temporary signage can override the permanent signage.
- When the question mentions a reversible lane, an extra lane or a temporary diversion, pay attention to road delineation devices, arrows and variable message signs.
- In images, also check which lane you're driving in. Many traps show a sign that's only valid for one direction, one lane or one specific manoeuvre.
2.4Vertical signs and the affected stretch
A vertical sign does not always apply to the whole road for the entire route. You must check whether it indicates a start, an end, a distance, the length of the stretch or exceptions for specific road users.
- When the question talks about parking, stopping, overtaking or turning, first identify whether the sign regulates that exact action or only informs about another circumstance.
- Placement matters: a sign before a junction, inside a roundabout or above a lane can change which movement it affects.
- If no specific figure appears on the sign or in the question, don't invent one. Apply the general conduct and leave the specific detail to the rule in force.
2.5Road markings and traffic lights
Road markings complete what you see on vertical signs: they can order you to stop, separate directions, reserve spaces or warn that a manoeuvre is no longer safe.
- A continuous line should not be read in isolation if there's a traffic light, an officer or a temporary sign ordering something else. Always go back to the hierarchy before answering.
- Traffic lights with arrows, lanes or specific addressees require you to check who they're aimed at. Not every light in an image regulates your movement.
- At pedestrian crossings and stop lines, the marking places you where you must wait. The typical mistake is to look only at the traffic light and stop too late.
2.6Official catalogue and the 2025 update
The official sign catalogue was updated in 2025. The reform introduces new representations and adapts pictograms and panels to current mobility.
- To study rigorously, use up-to-date material and be wary of old diagrams that still include discontinued signs or incomplete meanings in their examples.
- If a question pits a new sign against a classic one, the key remains the same: identify danger, prohibition, obligation or information and apply the correct conduct.
- When you're unsure between two similar pictograms, don't answer based on visual similarity. Ask yourself what risk or restriction it communicates and what the driver must do.
2.7Revision method
Group your mistakes by family: priority, prohibition, obligation, roadworks, lanes and markings. This way you spot patterns instead of repeating the same confusion with different pictures.
- Make flashcards with the image on one side and the required conduct on the other. The goal isn't to name the sign, but to know what you'll do when you see it.
- In a 30-question, 30-minute test, don't spend too much time on a doubtful sign. Mark the hierarchy, rule out impossibilities and come back if you have time left.
- Review signs alongside real situations: junctions, merges, roadworks and parking. The DGT usually asks about application, not isolated definitions.
2.8Shortened broken lines, reversible and additional lanes
A shortened broken line can warn that a continuous line is near or that visibility or another special risk reduces the safe gap; it is not just a shorter decorative line. Read the accompanying sign or marking before deciding what movement it permits.
- A reversible lane is delimited by double broken lines on both sides and its direction is governed by lane-control signals; do not infer a direction change from one short line alone.
- A temporary additional lane is enabled for a particular stretch and is marked and controlled as such; it is not automatically reversible. Follow the cones, signs, arrows and road markings in force.
- When a diagram is incomplete, hold the answer until the operating indication and the affected lane are clear.
Step 3. Key points
If you only have a minute before the exam, revise this.
- 1.Recognise the full hierarchy of signage before answering.
- 2.Tell apart danger, regulatory and information signs, traffic lights, markings and road delineation devices.
- 3.Link each sign to the required conduct and the stretch it affects.
- 4.Check whether the sign is aimed at your lane, movement or type of road user.
- 5.Study the updated catalogue and avoid incomplete old diagrams.
- 6.Practise questions with junctions, roadworks, reversible lanes and road markings.
- 7.Review your mistakes by sign family, not by isolated image.
Step 4. Exam traps
Mistakes the DGT uses again and again on this topic.
- Confusing the general priority rule with a vertical sign or an operating traffic light.
- Forgetting that temporary roadworks signage can change the usual regime.
- Reading a road marking in isolation without linking it to the rest of the lane's or junction's signage.
- Applying a sign meant for another lane, another direction or another manoeuvre as if it were for you.
- Answering from a remembered picture without checking whether the question asks about prohibition, obligation or information.
- Inventing a distance or exception that doesn't appear in the question or on the sign.
Step 5. Quick check
Four real exam questions on what you have just read.
An R-301 40 km/h sign is on the same post as a dangerous-bends warning. With no other sign modifying the limit, when does that danger-related restriction end?
Step 6. Frequently asked questions about road hazards and warning signs
- What type of device is a permanent directional panel?
- Guidance device. The fixed or permanent directional panel, usually located at the entrance to very tight or dangerous curves, is part of the guidance devices within road delineation signs. This is because it alerts and guides the driver about a specific hazard, for example on particularly dangerous curves, and indicates the direction of traffic.See full question
- May you voluntarily stop or park at a crest with reduced visibility?
- No, both voluntary stopping and parking are prohibited. No. Article 94 prohibits voluntary stopping at crests with reduced visibility and nearby, and parking is also prohibited wherever voluntary stopping is prohibited. Having the directions of traffic marked separately does not create an exception to this prohibition. A crest with good visibility is not prohibited solely on that ground, but other rules and signs still apply. A traffic-required stop or emergency immobilisation is different from choosing that place to stop or park.See full question
- The load carried in a vehicle...
- must be placed and secured in a way that does not compromise the stability of the vehicle. When transporting a load in a vehicle, it is fundamental that it is placed and secured in such a way that it does not affect the stability of the vehicle. This is important for several reasons: Vehicle Control: A poorly placed load can change the centre of gravity of the vehicle, which impacts how it is handled, especially when taking corners, braking or accelerating. Risk of Accidents: If the load is not properly secured, it may move or even fall from the vehicle during driving, which poses a danger to other road users. Obstruction of Visibility: It is crucial that the load does not block the driver's view or obscure the vehicle's lights or signs.See full question
- On the same post there is a triangular dangerous-left-bend sign and, below it, a circular red-bordered sign showing 50. What do they indicate together?
- Dangerous left bend and a maximum of 50 km/h while the indicated danger lasts. A dangerous left bend and a maximum speed of 50 km/h from the sign until the indicated danger ends, under the meaning of R-301 when sharing a post with a hazard warning. The number is a maximum speed, not a distance or recommended speed. Conditions may require a lower speed.See full question
- In a car, when entering a left-hand bend on a two-way road with one lane each way, what position should you normally maintain?
- On the right within your lane, near the right-hand edge with a safe margin. Drive on the right, near the right-hand edge within your lane, with sufficient margin to do so safely. Do not crowd a dangerous edge or enter the oncoming lane to follow the bend. Adapt speed before entering, account for visibility and maintain safe lateral clearance. This concerns a road bend, not a left turn at an intersection.See full question
Official sources
Signs catalogue
All Spanish traffic signs and their meanings
The full DGT catalogue — warning (P-), regulatory (R-) and information (S-) — with the official image and meaning of every sign.