R10-18a Traffic Signal Photo Enforced
Notifies road users of photographic enforcement of traffic-signal compliance.
- Sign Name
- Traffic Signal Photo Enforced
- MUTCD Code
- R10-18a
- Sign Category
- Regulatory Signs
Specifications
- Shape
- Rectangle (Vertical)
- Color / legend
- White background, black legend and border; red, yellow, and green signal symbols
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 the actual enforcement location and applicable placement requirements with the responsible jurisdiction.
- Drawing size 130" × 42"
- Drawing size 236" × 54"
When & Where It's Used
- Signal control and supplemental instructions
Placement Context
- Where it sits
- Check the advance placement and support restrictions in CA MUTCD 2B.69.
- CA MUTCD reference
- CA MUTCD 2026 §2B.69
Related Signs
Browse Regulatory Signs
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.
Need to Rent or Purchase This Sign? Contact Public Ready.
Public Ready supports sign selection, project-ready sign packages, and equipment sourcing through qualified providers — with expert support built for compliance.