Priority road sign

A yellow diamond with a white border, marking a road whose traffic has priority at junctions.

Also known as: Yellow diamond sign, Right of way sign

Road & transportSafety & hazardStandard profile

Meanings

The priority road sign is a diamond standing on a corner — a shape used for nothing else — and marks the road whose traffic has right of way at the junctions ahead. Its cancellation is the same diamond with a diagonal bar through it.

Officially standardisedVerified fact
Marks the road on which traffic has priority at the junctions that follow, until the sign is cancelled.
Contracting parties to the 1968 Vienna Convention · Contexts: Road signage
Officially standardisedVerified fact
Is cancelled by the identical diamond crossed by a diagonal bar, after which the default priority rule of the jurisdiction resumes.
Contracting parties to the 1968 Vienna Convention · Contexts: Road signage
Common modern usageVerified fact
Matters most where the default rule is priority to the right, since without the sign a driver on a main road would have to yield to every vehicle emerging from a side road on that side.
Contexts: Road signage

Visual description

A square rotated to stand on one corner, with a yellow centre surrounded by a white band and a thin black outline.

Symmetry: radial
Orientation: rotated
Colours: yellow, white, black

Used alongside: Give way sign
The priority road and the roads that must yield to it.

Confidence

IdentityHigh confidence: High confidence because the identity is defined by a current official standard, but multiple independent sources agree.
Historical originModerate confidence: Moderate confidence because the historical origin is documented in encyclopedic references, but multiple independent sources agree, but early or supporting evidence is limited, but the regional or cultural match to this specific claim is not precise.
Current useHigh confidence: High confidence because the current use is defined by a current official standard, but multiple independent sources agree.
Visual matchHigh confidence: High confidence because the visual match is documented in encyclopedic references, but multiple independent sources agree.

Sources

Convention on Road Signs and Signals (Vienna, 8 November 1968), consolidated text
United Nations Economic Commission for Europe · retrieved 2026-07-31
A treaty binding only on its contracting parties. It prescribes sign categories, shapes and colours and permits national variants within them; it does not describe the signage of non-signatory states, notably the United States. Cited for category and design prescription, never for the traffic law of a particular country.
Vienna Convention on Road Signs and Signals
Wikipedia · retrieved 2026-07-31
Tertiary reference. Used for what a sign depicts, which countries use which variant, and the broad regulatory lineage — not for an article number of the treaty or for the law of any single jurisdiction.
Priority to the right
Wikipedia · retrieved 2026-07-31
Tertiary reference. Used for what a sign depicts, which countries use which variant, and the broad regulatory lineage — not for an article number of the treaty or for the law of any single jurisdiction.
Convention on Road Signs and Signals of 1968 and the European Agreement supplementing it
United Nations Economic Commission for Europe · retrieved 2026-07-31
The publisher's own landing page for the consolidated instruments. Used for the status and scope of the Convention and its supplementing agreement rather than for the text of any provision.

Last reviewed 2026-07-31

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Road signs and what their shapes mean

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Meanings

Officially standardisedVerified fact

Marks the road on which traffic has priority at the junctions that follow, until the sign is cancelled.

Contracting parties to the 1968 Vienna Convention · Contexts: Road signage

Officially standardisedVerified fact

Is cancelled by the identical diamond crossed by a diagonal bar, after which the default priority rule of the jurisdiction resumes.

Contracting parties to the 1968 Vienna Convention · Contexts: Road signage

Common modern usageVerified fact

Matters most where the default rule is priority to the right, since without the sign a driver on a main road would have to yield to every vehicle emerging from a side road on that side.

Contexts: Road signage

Confidence

IdentityHigh confidence: High confidence because the identity is defined by a current official standard, but multiple independent sources agree.
Historical originModerate confidence: Moderate confidence because the historical origin is documented in encyclopedic references, but multiple independent sources agree, but early or supporting evidence is limited, but the regional or cultural match to this specific claim is not precise.
Current useHigh confidence: High confidence because the current use is defined by a current official standard, but multiple independent sources agree.
Visual matchHigh confidence: High confidence because the visual match is documented in encyclopedic references, but multiple independent sources agree.

Sources

Convention on Road Signs and Signals (Vienna, 8 November 1968), consolidated text
United Nations Economic Commission for Europe · retrieved 2026-07-31
A treaty binding only on its contracting parties. It prescribes sign categories, shapes and colours and permits national variants within them; it does not describe the signage of non-signatory states, notably the United States. Cited for category and design prescription, never for the traffic law of a particular country.
Vienna Convention on Road Signs and Signals
Wikipedia · retrieved 2026-07-31
Tertiary reference. Used for what a sign depicts, which countries use which variant, and the broad regulatory lineage — not for an article number of the treaty or for the law of any single jurisdiction.
Priority to the right
Wikipedia · retrieved 2026-07-31
Tertiary reference. Used for what a sign depicts, which countries use which variant, and the broad regulatory lineage — not for an article number of the treaty or for the law of any single jurisdiction.
Convention on Road Signs and Signals of 1968 and the European Agreement supplementing it
United Nations Economic Commission for Europe · retrieved 2026-07-31
The publisher's own landing page for the consolidated instruments. Used for the status and scope of the Convention and its supplementing agreement rather than for the text of any provision.

Last reviewed 2026-07-31

Meanings

Visual description

Related & commonly confused symbols

Meanings

Visual description

Related & commonly confused symbols