Practice question

Why are warning signs triangular rather than circular in the SADC system?

  1. Triangles are cheaper to manufacture only
  2. Distinct shapes let drivers recognise the sign family (warning vs regulatory vs information) before reading the symbol
  3. Circles are reserved for advertising
  4. Triangles mean the message is optional

Answer: B — Distinct shapes let drivers recognise the sign family (warning vs regulatory vs information) before reading the symbol

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