R10-11b No Turn on Red (Square)
Displays the NO TURN ON RED word message in a square layout.
- Sign Name
- No Turn on Red (Square)
- MUTCD Code
- R10-11b
- Sign Category
- Regulatory Signs
Specifications
- Shape
- Square
- Color / legend
- White background, black legend and border
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.
This square word-message layout is R10-11b; do not substitute the rectangular R10-11 drawing for its dimensions.
- Drawing size 124" × 24"
- Drawing size 236" × 36"
When & Where It's Used
- Turn-on-red prohibition
Placement Context
- Where it sits
- Use for an applicable turn-on-red prohibition under CA MUTCD 2B.60..
- 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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