Minimum Speed Sign

Minimum-speed is a blue command sign — you must travel at least the shown speed. It is regularly confused with the red-bordered Speed Limit Sign (a maximum).

Meaning

Blue circle with a white number.

Required driver response

Do not drive slower than the indicated speed (traffic permitting).

Question patterns

• “What does this sign mean?” — recognition of meaning.
• “What must you do when you see this sign?” — required response.
• Distractor trap: reading the blue circle as a maximum speed limit.

Ontology Minimum Speed Sign [part-of] Regulatory Signs

Connections

• Regulatory Signs — part_of_topic, source: 2026-06-28
• Road Signs Signals and Markings — part_of_topic, source: 2026-06-28
• South African Road Traffic Signs Manual — derived_from_source, source: 2026-06-28

Sources

• South African Road Traffic Signs Manual (SARTSM)
• Arrive Alive — Traffic Signs of South Africa