R10-40 Bicycle Signal — Mandatory Turn
Identifies the mandatory bicycle turn controlled by the bicycle signal face.
- Sign Name
- Bicycle Signal — Mandatory Turn
- MUTCD Code
- R10-40
- Sign Category
- Regulatory Signs
Specifications
- Shape
- Rectangle (Vertical)
- 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.
The displayed arrow is LEFT. The FHWA archive provides LEFT and RIGHT faces; the linked dimension drawing shows the LEFT layout. Select the actual controlled movement.
- Drawing size 112" × 21"
- Drawing size 224" × 36"
When & Where It's Used
- Bicycle signal control
Placement Context
- Where it sits
- Use with the bicycle signal controlling the displayed turn movement.
- CA MUTCD reference
- CA MUTCD 2026 §9B.22
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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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