Meaning A4
Advisory speed. This sign is about speed. It is advice, but choose a safe speed.
Memory aid
A = speed in km/h. Link the shape and colour to the message.
Common mistake
Common mistake: confusing advice with a mandatory maximum.
On the road
You are driving and see sign A4 (Advisory speed). This sign sets the speed that applies now.
What should you do?
- Read the number on the sign.
- Adjust your speed at once.
- Watch for end signs and supplementary plates.
Practice questions with model answers
What does sign A4 mean?
Advisory speed. This sign is about speed. It is advice, but choose a safe speed. In theory questions the point is the immediate effect: what should you do now?
What should you change as soon as you see this sign?
Read the number on the sign. Adjust your speed at once. Watch for end signs and supplementary plates. This is exactly what the CBR tests.
Which exceptions can a supplementary plate add to sign A4?
Supplementary plates can add times, vehicles or exceptions. The right exam answer always names that exception.
Frequently asked questions
What does sign A4 mean?
Advisory speed. This sign is about speed. It is advice, but choose a safe speed.
What should you do immediately at sign A4?
Read the number on the sign. Adjust your speed at once. Watch for end signs and supplementary plates.
What is a common mistake with sign A4?
Common mistake: confusing advice with a mandatory maximum.
What else should you watch for with this sign?
Watch for supplementary plates, zone markings and any end signs.
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