Driver Assistance Systems (ADAS)
Study all Driver Assistance Systems (ADAS) questions for the Spanish DGT theory test.
Reviewed on 7 Oct 2026
30 questions
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- What are Advanced Driver Assistance Systems (ADAS)?
- What percentage of road accidents is attributed to human error, the problem ADAS aim to reduce?
- What characterises a passive ADAS system?
- What does an active ADAS system do, unlike a passive one?
- What function does the Automatic Emergency Braking (AEB) system perform?
- What is the typical sequence of action of the Automatic Emergency Braking (AEB) system?
- What does Adaptive Cruise Control (ACC) do?
- What type of sensors does Adaptive Cruise Control (ACC) mainly use to measure the distance to the vehicle ahead?
- What does the Traffic Sign Recognition (TSR) system do?
- What is Blind Spot Detection (BSD) for?
- If Blind Spot Detection (BSD) flags a vehicle in its zone and you signal towards that side, what normally happens?
- In which situation is Rear Cross Traffic Alert (RCTA) especially useful?
- What does the Lane Departure Warning (LDW) system do?
- How does Lane Keeping Assist (LKA) differ from a simple Lane Departure Warning (LDW)?
- When using parking assist, what obligation does the driver retain?
- What does Hill Start Assist (HSA) prevent?
- How does the driver drowsiness detection system identify fatigue?
- If the drowsiness detection system triggers an alert during a journey, what is the most appropriate action?
- What technology does Night Vision Assist use to detect pedestrians or animals beyond the reach of the headlights?
- Which of the following is a recognised benefit of ADAS systems for vulnerable road users?
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Frequently asked questions
- What are Advanced Driver Assistance Systems (ADAS)?
- Electronic technologies that assist the driver and improve road safety ADAS are electronic technologies that use sensors, cameras, and radars to improve road safety, reduce accidents, and assist the driver, minimising human error.
- What percentage of road accidents is attributed to human error, the problem ADAS aim to reduce?
- Over 90% Human error is responsible for over 90% of road accidents. ADAS are designed precisely to minimise that error through alerts and interventions.
- What characterises a passive ADAS system?
- Alerts the driver to danger without intervening Passive systems alert the driver to potential dangers without intervening in the driving, such as lane departure warning or traffic sign recognition.
- What does an active ADAS system do, unlike a passive one?
- Intervenes by taking control to prevent the accident Active systems take control when necessary to prevent an accident, such as automatic emergency braking or adaptive cruise control, whereas passive ones only warn.
- What function does the Automatic Emergency Braking (AEB) system perform?
- Brakes automatically if the driver does not react to an obstacle AEB detects obstacles using cameras, radar, or lidar and, if the driver does not react in time, first warns and then applies the brakes to avoid or reduce the collision.