R1-7a Wait on Stop - Go on Slow
Instructs road users at a flagger station to wait when the flagger displays STOP and proceed slowly when the flagger displays SLOW.
- Sign Name
- Wait on Stop - Go on Slow
- MUTCD Code
- R1-7a
- Sign Category
- Regulatory Signs
Specifications
- Shape
- Rectangle (Vertical)
- Color / legend
- White background, black legend
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.
- Layout size30" × 36"
When & Where It's Used
- Flagger stations on one-lane, two-way control
- Used with the STOP/SLOW paddle (W20-8) and Flagger (W20-7)
- Alternating one-way flagging operations
Placement Context
- Where it sits
- Advance warning area, ahead of the work.
- CA MUTCD reference
- CA MUTCD 2026 Chapter 6G — TTC Zone Regulatory Signs
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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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