R10-11a No Turn on Circular Red
Uses a circular red symbol in a NO TURN ON RED message.
- Sign Name
- No Turn on Circular Red
- MUTCD Code
- R10-11a
- Sign Category
- Regulatory Signs
Specifications
- Shape
- Rectangle (Vertical)
- Color / legend
- White background, black legend and border; red circular symbol
Sizes & Dimensions (inches)
These are dimensions shown on the linked layout. Select the required size using the applicable MUTCD and agency requirements; the smallest drawing size is not necessarily the permitted minimum.
Confirm that this symbolic circular-red design matches the actual signal indications and intended restriction.
- Drawing size 124" × 30"
- Drawing size 236" × 48"
When & Where It's Used
- Circular-red turn restriction
Placement Context
- Where it sits
- Review CA MUTCD 2B.60 for approaches controlled by both circular red and red-arrow indications..
- CA MUTCD reference
- CA MUTCD 2026 §2B.60
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Educational reference only. This is not an official Caltrans, FHWA, or local agency publication and is not legal or engineering advice. Always verify sign selection, size, placement, spacing, and application against the current CA MUTCD 2026, Caltrans sign specifications, Standard Plans, project documents, and the reviewing agency’s requirements. Local jurisdictions may impose additional requirements, and final selection, placement, and dimensions may require engineering judgment or agency approval. Reference editions: California MUTCD 2026 (effective January 18, 2026) and the Federal MUTCD 11th Edition with Revision 1.
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