R10-10b Left (Right) Lane Signal
Identifies a separate signal face controlling the indicated lane at a grade crossing pre-signal or queue cutter signal.
- Sign Name
- Left (Right) Lane Signal
- MUTCD Code
- R10-10b
- 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 face says LEFT; the linked official drawings include both LEFT and RIGHT versions. Verify lane assignment and the California size table.
- Drawing size 124" × 30"
- Drawing size 230" × 36"
When & Where It's Used
- Signal control and supplemental instructions
Placement Context
- Where it sits
- Locate adjacent to the separate signal face under CA MUTCD 8D.11 or 8D.12.
- CA MUTCD reference
- CA MUTCD 2026 §8D.11 and 8D.12
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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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