R15-2P · Number of Tracks — Plaque
R15-2P Sizes & Dimensions
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. All dimensions below are in inches.
Open R15-2P Official Dimension Drawing (PDF, opens in a new tab)Official PDF · Opens in a new tab
Dimensions from the Official Drawing
Use California Table 8B-1 and its notes for roadway selection; pathway/sidewalk applications also reference Table 9A-1. Federal drawing sizes do not establish California installation minimums. The inverted-T plaque height is twice drawing dimension B: 9 inches for the 13.5-inch-wide plaque and 18 inches for the 27-inch-wide plaque.
- Official drawing size13.5" × 9"
Select using the applicable CA MUTCD roadway or pathway table.
Overall inverted-T plaque width and height; height = 2 × drawing dimension B.
- Official drawing size27" × 18"
Select using the applicable CA MUTCD roadway or pathway table.
Overall inverted-T plaque width and height; height = 2 × drawing dimension B.
Drawing dimensions are not a universal minimum or an agency approval. 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.
California Application & Variants
White inverted-T track-count plaque used with a crossbuck. The example shows three tracks; the installed legend must match the actual number of tracks. The yellow W48P(CA) advance-warning plaque serves a different location.
Size selection: Use California Table 8B-1 and its notes for roadway selection; pathway/sidewalk applications also reference Table 9A-1. Federal drawing sizes do not establish California installation minimums. The inverted-T plaque height is twice drawing dimension B: 9 inches for the 13.5-inch-wide plaque and 18 inches for the 27-inch-wide plaque.
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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