Step 1. The big picture
In one sentence…
Road safety combines prevention, occupant protection and the correct reaction to an emergency. The theory exam usually mixes active safety, passive safety and the PAS response within the same question, so always study cause, consequence and safe conduct together.
Step 2. The syllabus
2.1Active safety
Active safety helps to avoid the accident: brakes, steering, tyres, suspension, lighting and electronic aids all work before the impact.
- These elements only work well if the driver maintains the vehicle and adapts their driving. A poor tyre or badly used light reduces your margin before danger strikes.
- In the exam, a question may mention rain, a bend or braking to check whether you know active safety also depends on grip and anticipation.
- Don't confuse electronic aids with permission to take risks. Their role is to support, not to compensate for inadequate speed or insufficient distance.
2.2Passive safety
Passive safety reduces injuries once the accident can no longer be avoided: seatbelt, headrest, airbags, the vehicle's structure and child restraint systems.
- A badly adjusted headrest or a loose seatbelt can turn an apparently minor rear-end collision into a serious injury for any occupant.
- The airbag does not replace the seatbelt. In questions about occupants, the correct answer usually requires both systems to work together.
- Passive protection starts before you set off: seat, backrest, headrest, seatbelts and loose objects must all be under control so as not to increase harm.
2.3Seatbelt and posture
The seatbelt must be used whenever the vehicle is fitted with one, and it must be well adjusted, without slack or twists.
- Correct posture lets you control the pedals, steering wheel, mirrors and controls without stretching. It also helps the seatbelt, headrest and airbag protect you as they should.
- Don't fit clips, cushions or thick clothing that leave dangerous slack. In an impact, these details change how effective the system really is.
- In tests, be wary of answers that accept wearing the seatbelt any old way for short trips, low speed or rear seats.
2.4Child restraint systems
Minors must travel in the child restraint system suited to their height, weight and type approval, following the seating positions and conditions set out in law.
- The driver must make sure the system is installed and used correctly. It's not enough for the minor to be sitting in just any device.
- The question may not ask for a figure: it may ask for the principle. A minor travels protected when the system matches their characteristics and is fitted correctly.
- If in doubt between comfort and safety, choose safety. The rule aims to reduce injuries even if the trip is short or the minor complains.
2.5The PAS response
The safe sequence follows the PAS principle: protect the area, alert the emergency services and assist without worsening injuries or creating another danger.
- Protecting means preventing further collisions before helping. Park safely, make yourself visible and assess the traffic so you don't become another victim.
- Alerting requires clearly conveying where you are and what has happened. Don't improvise rescue manoeuvres that could worsen injuries unless they are essential.
- Assisting doesn't always mean moving the injured person. In the exam, the cautious answer is usually to stay with them, avoid additional risks and wait for qualified help when appropriate.
2.6Breakdown and immobilisation
Since 1 January 2026, the connected V16 light is the official reference for pre-signalling an immobilised vehicle for those vehicles required to carry the device.
- Before helping, avoid becoming a new victim: park safely, use visibility items and don't step onto the carriageway without controlling the risk.
- In a breakdown, the priority is not to get the vehicle moving quickly again, but to reduce your own exposure and that of other road users.
- Questions often pit haste against safety. Always choose the orderly response: protect first, alert next, and only assist if you don't worsen the danger.
2.7Exam preparation
Classify each element as active or passive and say what risk it reduces. This method stops you learning lists without understanding why they appear together in a question.
- Practise cases: rear-end collision, rollover, rain, a night-time breakdown and a child occupant. In each one, decide which system prevents and which protects.
- The B theory test is 30 questions with a maximum of 3 errors in 30 minutes. It pays to master these topics because they tend to appear with very everyday scenarios.
- When an answer plays down a measure because the trip is short, it's usually suspect. Road safety applies whenever you're driving.
Step 3. Key points
If you only have a minute before the exam, revise this.
- 1.Tell active and passive safety apart with real examples.
- 2.Adjust the seat, seatbelt and headrest before setting off.
- 3.Use the seatbelt, airbag and child restraint systems correctly.
- 4.Apply PAS without putting yourself in danger or worsening injuries.
- 5.Know the official reference for the connected V16 light in 2026.
- 6.Link basic maintenance to the effectiveness of brakes, lights and tyres.
- 7.Be wary of answers that justify skipping measures on short trips.
Step 4. Exam traps
Mistakes the DGT uses again and again on this topic.
- Thinking that wearing the seatbelt any old way is enough.
- Confusing an active safety element with a passive one.
- Getting out of the vehicle without assessing the road's risk during a breakdown or accident.
- Believing the airbag replaces the seatbelt.
- Moving an injured person unnecessarily and without assessing whether you might worsen their injuries.
- Forgetting that the connected V16 is the official reference from 1 January 2026.
Step 5. Quick check
Four real exam questions on what you have just read.
Question 1/4
Which statement about speed and crash severity is correct?
Step 6. Frequently asked questions about factors involved in road accidents
- According to DGT’s consolidated figures for Spain in 2024, counting deaths within 30 days, which road category recorded more people killed?
- On interurban roads. On interurban roads: 1,291 people killed, compared with 494 on urban roads. These are consolidated national figures for 2024 counting deaths within 30 days. People killed and crashes are different measures; this comparison does not establish a particular speed or road alignment for all crashes.See full question
- Can a lack of driving experience be one of the causes explaining the road accidents suffered by novice drivers?
- Yes; inexperience can contribute regardless of age. Limited experience may make early hazard recognition and an appropriate response to unfamiliar situations harder. It is a risk factor for novice drivers of any age; novice does not necessarily mean young. Road and vehicle conditions, attention and other behaviour also matter.See full question
- According to the DGT 2024 closing report for interurban roads and deaths within 24 hours, which individual weekday recorded the most deaths?
- Saturday. Saturday recorded 219 deaths, compared with 210 on Sunday and 127 on Tuesday. The table counts people killed, rather than fatal crashes, on interurban roads in 2024 with a 24-hour reporting window. It is not a permanent claim about all years or all roads.See full question
- Human costs in a road traffic accident include…
- The years of life lost and the suffering of victims, family, and friends. Among the human costs arising from a road traffic accident are those representing the value of the loss of enjoyment of life or health of the victim, as well as the pain, affliction, and suffering of the victim and their family. Therefore, human costs are those associated with the suffering inflicted on victims by road accidents, and are therefore the most difficult to value.See full question
- A large proportion of accidents are mainly due to the ... factor.
- human. Road accident statistics demonstrate the significant impact of the human factor (driver or pedestrian) in causing accidents, accounting for the majority of incidents. This is because a human error, whether due to distraction or lack of knowledge, is recorded in most accidents at some point.See full question