What are ADAS systems?

Advanced driver assistance systems: sensor- and camera-based aids that improve a vehicle's active safety by helping the driver judge and react to hazards.

Which ADAS are banned in the Spanish practical test?

Traffic sign recognition (TSR), because the examiner must see the candidate read and respond to signs unaided. Hill Holder and AEBS are allowed.

What is the difference between LDW and LKA?

LDW warns you that the car is leaving its lane; LKA intervenes to keep it there when the warning goes unheeded.

ADAS (advanced driver assistance systems)

Definition

ADAS — advanced driver assistance systems — are the set of systems that improve a vehicle's active safety using sensors and cameras. They assist the driver in judging and reacting to hazards: some only inform, some warn, and some intervene on the brakes or the steering. They cover functions such as collision alert, lane-keeping assistance and automatic emergency braking. The driver always keeps control of the vehicle.

The ADAS systems the Spanish theory exam asks about

The ADAS systems the Spanish theory exam asks about
System	Name	What it does
AEB / AEBS	Automatic emergency braking	Brakes by itself when a collision is imminent and the driver has not reacted
LDW	Lane departure warning	Warns when the vehicle drifts out of its lane
LKA	Lane keeping assist	Steps in to hold the vehicle in its lane if the driver ignores the LDW warning
RCTA	Rear cross traffic alert	Detects vehicles approaching from the sides while reversing out of a parking space
TPMS	Tyre pressure monitoring	Warns when a tyre loses pressure
TSR	Traffic sign recognition	Reads road signs and displays them to the driver
Hill Holder	Hill start assist	Senses the gradient and stops the car rolling back as you lift off the brake
Blind spot	Blind spot information	Warns of vehicles in the blind spot; informs only, never intervenes

Key facts

ADAS improve active safety using sensors and cameras.
Blind spot information only informs; it never intervenes.
LDW warns about lane drift; LKA acts if the driver does not.
AEB/AEBS brakes automatically when a collision is imminent.
Traffic sign recognition is not allowed during the Spanish practical test; Hill Holder and AEBS are.

Keep studying

Frequently asked questions

What are ADAS systems?: Advanced driver assistance systems: sensor- and camera-based aids that improve a vehicle's active safety by helping the driver judge and react to hazards.
Which ADAS are banned in the Spanish practical test?: Traffic sign recognition (TSR), because the examiner must see the candidate read and respond to signs unaided. Hill Holder and AEBS are allowed.
What is the difference between LDW and LKA?: LDW warns you that the car is leaving its lane; LKA intervenes to keep it there when the warning goes unheeded.

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Real ADAS (advanced driver assistance systems) questions (B licence)

ADAS systems should be understood as aids that:

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