Speed Limits in Spain: The Definitive Guide for the Permiso B Exam

Speed limits are one of the most heavily tested topics on the Spanish Permiso B theory exam, and for good reason. Exceeding the speed limit is consistently one of the leading causes of serious road accidents in Spain. The DGT places enormous emphasis on ensuring new drivers understand not just the numbers, but the reasoning behind each limit and the conditions that can modify them. For expats, speed limits in Spain can be confusing because they vary based on the road type, the vehicle type, the weather conditions, and even the time of day in certain areas. This guide will give you a complete understanding of every speed limit rule you need to know for the exam.

Unlike some countries where speed limits are relatively uniform, Spain has a layered system where the applicable limit depends on multiple factors working together. A road that has a 120 km/h limit for cars might have a 90 km/h limit for vehicles towing a trailer. A limit that applies on a dry, clear day might be reduced when it rains or when visibility drops below a certain threshold. Understanding these layers and how they interact is the key to answering speed limit questions correctly on the exam.

General Speed Limits by Road Type

The foundation of the Spanish speed limit system is the classification of roads. Each road type has a default speed limit that applies unless signs indicate otherwise. Knowing these defaults is essential because the exam frequently asks about the speed limit on a particular type of road without showing a specific speed limit sign. You need to be able to identify the road type from the description or image and apply the correct default limit.

• Autopistas and autovias (motorways and dual carriageways): Maximum 120 km/h, minimum 60 km/h. These are the fastest roads in Spain with separated carriageways and no at-grade intersections
• Conventional roads with more than one lane in each direction (outside urban areas): Maximum 100 km/h
• Conventional roads with one lane in each direction (outside urban areas): Maximum 90 km/h. This was reduced from 100 km/h in January 2019
• Urban roads (general): Maximum 50 km/h. This is the default for all roads within city or town boundaries unless posted otherwise
• Urban roads with single lane in each direction: Maximum 30 km/h in residential areas. Many Spanish cities have adopted 30 km/h zones widely
• Urban roads with single platform shared by vehicles and pedestrians: Maximum 20 km/h
• Travesias (roads passing through urban areas that are not classified as urban roads): Usually 50 km/h but can vary, often marked with specific signs

Speed Limits by Vehicle Type

Not all vehicles have the same speed limits on the same road. The Permiso B covers passenger cars, but the exam also tests your knowledge of limits for other vehicle categories because you need to understand how different vehicles interact in traffic. A truck moving more slowly than the car behind it creates a specific traffic situation that requires knowledge of both vehicles speed limits to resolve safely. Here are the limits for different vehicle categories across the main road types.

Passenger Cars (Turismos)

Standard passenger cars follow the general speed limits: 120 km/h on motorways, 100 km/h on multi-lane conventional roads, 90 km/h on single-lane conventional roads, and 50 km/h in urban areas. These limits apply to cars without trailers. When a passenger car is towing a trailer, the limits are reduced. On motorways, a car with a trailer is limited to 80 km/h. On conventional roads, the limit drops to 70 km/h. These reduced limits reflect the increased braking distance and reduced maneuverability when towing.

Trucks, Buses, and Commercial Vehicles

Trucks over 3,500 kg gross vehicle weight have lower speed limits than passenger cars on all road types. On motorways, the limit is 90 km/h. On conventional roads, it is 80 km/h. Buses follow similar reduced limits, though buses specifically designed and certified for highway travel may be permitted to travel at up to 100 km/h on motorways. These differences are important for the exam because questions often present scenarios where you need to understand why a truck is traveling at a specific speed or whether it would be appropriate to overtake given the speed differential.

Motorcycles and Mopeds

Motorcycles (over 125cc) generally follow the same speed limits as passenger cars on all road types. Motorcycles up to 125cc are limited to 100 km/h on motorways where they are permitted, and they follow the same limits as cars on other roads. Mopeds, which have a maximum design speed of 45 km/h, are prohibited from motorways and autovias entirely. They are limited to 45 km/h on all roads where they are permitted. Knowing that mopeds cannot use motorways is a frequent exam question.

When Speed Limits Change: Conditions and Exceptions

The general speed limits described above apply under normal conditions: dry road, good visibility, light traffic, and a properly maintained vehicle. However, Spanish traffic law includes several provisions that modify speed limits based on changing conditions. Understanding these modifications is crucial for the exam because they test your ability to apply rules dynamically rather than just memorizing fixed numbers.

• Rain and wet roads: While there is no specific legal reduction in the posted speed limit when it rains, the DGT handbook emphasizes that drivers must always adapt their speed to conditions. The exam often asks about appropriate speed reduction in rain, with the guidance being to reduce speed by at least 20% of the posted limit
• Fog and reduced visibility: When visibility is less than the safe stopping distance, you must reduce speed significantly. Spanish law requires drivers to be able to stop within the distance they can see clearly
• Snow and ice: Mandatory speed reduction. If snow chains are required, the maximum speed is typically limited to 30-50 km/h depending on conditions. Studded tyres have a maximum speed limit of 80 km/h
• Night driving: While speed limits do not change at night, reduced visibility means you should not drive faster than your headlight range allows you to stop safely. On unlit roads, this effectively reduces your safe speed
• Temporary speed limits: Construction zones, accident areas, and special events may have temporary speed limits that override the permanent ones. These are indicated by temporary signs with yellow or orange backgrounds
• Variable speed limits on motorways: Some Spanish motorways have electronic signs that display changing speed limits based on real-time traffic and weather conditions. These are legally binding when illuminated

Minimum Speed Limits

While maximum speed limits get most of the attention, minimum speed limits are equally important for the exam and for safety on Spanish roads. Driving too slowly on a high-speed road is dangerous because it creates speed differentials with other traffic, increasing the risk of rear-end collisions and forcing other drivers into risky overtaking maneuvers. Spanish traffic law addresses this with both general minimum speed rules and specific posted minimum limits.

The general rule is that on roads outside urban areas, you must not travel at a speed so low that it unnecessarily obstructs or endangers other traffic. The specific minimum on motorways and autovias is 60 km/h. If your vehicle cannot maintain this speed due to its design or a mechanical issue, you are not permitted to use the motorway. Posted minimum speed limits, shown on blue circular signs with a white number, override the general minimum and must be obeyed. Vehicles that cannot maintain the minimum speed on any road must use the hard shoulder where available and activate their hazard warning lights.

Speed limits are not targets. The posted limit is the maximum, not the recommended speed. In adverse conditions, driving at the posted limit can be just as dangerous as exceeding it. The exam tests whether you understand this principle through scenario-based questions about appropriate speed in rain, fog, and heavy traffic.

Exceeding the Speed Limit: When It Is Permitted

This is a topic that catches many test-takers by surprise. Spanish traffic law includes a provision that allows the speed limit to be exceeded by up to 20 km/h when overtaking another vehicle on a conventional road (not on motorways or in urban areas). This exception applies only to passenger cars and motorcycles, and only on conventional interurban roads with one lane in each direction where the normal limit is 90 km/h. The temporary increase to 110 km/h is permitted only for the duration of the overtaking maneuver, and you must return to the posted limit as soon as the maneuver is complete.

This rule exists because overtaking on a single-carriageway road, where you must cross into the opposing lane, is one of the most dangerous maneuvers in driving. Allowing a temporary speed increase means the overtaking driver spends less time in the opposing lane, reducing the risk of a head-on collision. However, the exam also tests the limitations of this rule: it does not apply on motorways, it does not apply in urban areas, it does not apply to trucks or other heavy vehicles, and it does not allow you to exceed the speed of the vehicle being overtaken by more than what is necessary to pass safely.

Penalties for Speeding in Spain

The DGT enforces speed limits through a combination of fixed radar cameras, mobile radar units, and helicopter-mounted speed detection systems. Spain has one of the most extensive speed enforcement networks in Europe, with over 1,500 fixed radar locations and hundreds of mobile units. Understanding the penalty structure is important both for the exam and for your driving life in Spain. Speeding penalties are classified as either serious or very serious infractions, with corresponding fines and point deductions.

• Exceeding the limit by up to 20 km/h on urban roads or up to 30 km/h on interurban roads: Serious infraction. Fine of 100 euros and loss of 2 points
• Exceeding the limit by 21-30 km/h on urban roads or 31-50 km/h on interurban roads: Serious infraction. Fine of 200 euros and loss of 2 points
• Exceeding the limit by 31-40 km/h on urban roads or 51-60 km/h on interurban roads: Serious infraction. Fine of 300 euros and loss of 4 points
• Exceeding the limit by 41-50 km/h on urban roads or 61-70 km/h on interurban roads: Serious infraction. Fine of 400 euros and loss of 4 points
• Exceeding the limit by more than 50 km/h on urban roads or more than 70 km/h on interurban roads: Very serious infraction. Fine of 500 euros and loss of 6 points
• Exceeding the limit by more than 80 km/h on any road: Very serious infraction that may also be considered a criminal offense under Spanish law, potentially resulting in prison time
• Fines can be reduced by 50% if paid within 20 days of notification, which is a strong incentive for prompt payment

Speed Detection and Tolerances

Spanish law requires that all fixed speed camera locations be publicly disclosed, and signs must warn drivers of radar zones ahead. The DGT publishes the locations of fixed radars on its website and app. Mobile radars, however, are not required to be announced and can be placed anywhere. The exam may ask about the tolerance applied to speed measurements. Fixed radars have a tolerance of 5 km/h for speeds up to 100 km/h and 5% for speeds above 100 km/h. This means that on a 120 km/h road, the radar would not trigger until you reach approximately 126 km/h. However, you should never rely on these tolerances as a reason to drive over the limit.

Section control (tramo de control) is an increasingly common enforcement method on Spanish roads. Unlike traditional speed cameras that measure your speed at a single point, section control measures your average speed over a longer distance, typically several kilometers. Two cameras record the time you enter and exit the controlled section, and your average speed is calculated from the distance divided by time. This makes it impossible to brake for a camera and then accelerate again. If your average speed exceeds the limit for the section, the infraction is recorded. The DGT has been expanding section control systems across the national motorway network.

The 30 km/h Urban Speed Revolution

In May 2021, Spain introduced new regulations that significantly changed urban speed limits across the country. Under the new rules, all single-lane urban roads (one lane in each direction) now have a default speed limit of 30 km/h. This was a major shift from the previous 50 km/h default and affects the majority of residential streets in Spanish cities and towns. The regulation was introduced as part of Spain's commitment to reducing road deaths and improving pedestrian safety in urban areas.

The urban speed limit system now works on a three-tier structure. Roads with two or more lanes in each direction retain the 50 km/h limit. Roads with a single lane in each direction are limited to 30 km/h. Roads with a single platform shared by vehicles and pedestrians (typically in pedestrianized zones or residential culs-de-sac) are limited to 20 km/h. These limits apply as defaults and can be modified by specific signage. A road that might look like it should be 50 km/h based on its width and condition might actually be 30 km/h if it only has one lane in each direction.

• Single-lane urban roads: 30 km/h default. This applies to the vast majority of residential streets
• Multi-lane urban roads (2+ lanes in each direction): 50 km/h default
• Single-platform roads shared with pedestrians: 20 km/h default
• Specific zones may have even lower limits (such as school zones at 20 km/h during school hours)
• These are defaults that apply when no speed limit sign is posted. Signs can override in either direction

Exam Strategies for Speed Limit Questions

Speed limit questions on the DGT exam come in several formats. Some directly ask for the speed limit on a specific type of road. Others present scenarios with images and ask you to identify the appropriate speed. Still others describe adverse conditions and ask how you should adjust your speed. For direct questions, knowing the default limits by road type is usually sufficient. For scenario questions, you need to consider all the factors: the road type, any posted signs, the weather conditions, the vehicle type, and whether you are towing a trailer.

One common trap in speed limit questions is the distinction between the speed limit and the appropriate speed. The speed limit is the legal maximum, but the appropriate speed might be much lower depending on conditions. If a question asks about the correct speed in heavy rain on a motorway, the answer is not 120 km/h even though that is the posted limit. The correct answer will describe reducing speed to match conditions. Similarly, if a question mentions reduced visibility or a crowded urban street, the appropriate speed is likely below the posted maximum. Always consider context before selecting your answer.

Use the SpanishDrivingTest.com practice platform to work through speed limit questions in the Road Usage and Speed Limits section. The AI explanations will help you understand the reasoning behind each correct answer, and the repetition will build your confidence in handling these questions under exam conditions. Speed limits account for a significant percentage of exam questions, so mastering this topic is one of the highest-return investments you can make in your exam preparation.