R22-2 TURN OFF 2-WAY RADIO AND CELL PHONE Standard Sizes
This page shows the common MUTCD standard sizes for the R22-2 TURN OFF 2-WAY RADIO AND CELL PHONE sign. Use this information to select the appropriate size based on roadway speed, traffic conditions, and visibility needs. All dimensions are in inches.
Common Sizes
Standard nominal sizes per MUTCD.
Roadway Applications
Size selection based on speed, ADT, and roadway environment.
Visibility / Reflectivity
High-intensity reflective sheeting required at night.
Mounting Guidance
Proper mounting height and placement for optimal visibility.
R22-2 TURN OFF 2-WAY RADIO AND CELL PHONE Sign Standard Size Chart
- RectanglePer CA MUTCD minimum for the roadway type
- Typical Use
- Per CA MUTCD minimum for the roadway type
- Notes
- Per CA MUTCD for the roadway type.
R22-2 TURN OFF 2-WAY RADIO AND CELL PHONE Sign Dimensions
H (Height)For a rectangle, Width (W) and Height (H) follow the nominal size at each dimension.
When Each Size Is Typically Used
- Rectangle RectanglePer CA MUTCD minimum for the roadway type
Material / Visibility Notes
- ✓High-Intensity ReflectivitySigns should use high-intensity or diamond-grade retroreflective sheeting for nighttime visibility.
- ✓Sign LegibilityLarger signs improve legibility and driver response time.
- ✓Nighttime VisibilityProper size and reflectivity enhance visibility in low-light conditions.
- ✓MaintenanceKeep signs clean and unobstructed to maintain retroreflective performance.
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. Written against California MUTCD 2026 (effective January 18, 2026) and the Federal MUTCD 11th Edition. Official sources last verified June 2026.
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