Pre-Sign Main Road (1 Dot) – Information Signs Switzerland Sign 3.21
Sign 3.21

Pre-Sign Main Road (1 Dot)

Sign 3.21 · SSV/SVG Switzerland · Information Signs

Black triangle with one red dot: announces the sign only ~50–100 m ahead. Brake immediately!

⚡ Remember: 1 dot = Stop / Give Way in ~50–100 m – brake now!
pre-sign stop give way main road signal

What does the Pre-Sign Main Road (1 Dot) sign mean?

Sign Pre-Sign Main Road (1 Dot) (No. 3.21) means: Black triangle with one red dot: announces the sign only ~50–100 m ahead. Brake immediately!

Pre-Sign Main Road (1 Dot) – Key Rule

1 dot = Stop / Give Way in ~50–100 m – brake now!

Pre-Sign Main Road (1 Dot) – Category Information Signs

Information signs provide details about road types, facilities and rules of behaviour.

Why know Pre-Sign Main Road (1 Dot)?

Signs like Pre-Sign Main Road (1 Dot) are the foundation for understanding traffic situations. The Swiss driving licence test assesses your ability to interpret these situations correctly – knowing your signs means understanding the road.

Where does the Pre-Sign Main Road (1 Dot) sign apply?

Sign Pre-Sign Main Road (1 Dot) (No. 3.21) applies on public roads in Switzerland under the SSV (Road Signage Ordinance). It belongs to the category Information Signs.

Pre-Sign Main Road (1 Dot) – Foundation for Road Comprehension

Understanding signs like Pre-Sign Main Road (1 Dot) (No. 3.21) is the foundation for reading traffic situations – which is exactly what the Swiss driving licence test assesses.

Key facts:

  • Sign number: 3.21
  • Category: Information Signs
  • Meaning: Black triangle with one red dot: announces the sign only ~50–100 m ahead. Brake immediately!
  • Key rule: 1 dot = Stop / Give Way in ~50–100 m – brake now!

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