M4-9a Bicyclist/Pedestrian Detour
Directs both bicyclists and pedestrians along a detour route with the bicycle and pedestrian symbols, the word DETOUR, and a directional arrow (M4-9aL/M4-9aR directional versions).
- Sign Name
- Bicyclist/Pedestrian Detour
- MUTCD Code
- M4-9a
- Sign Category
- Detour Signs
Specifications
- Shape
- Rectangle (Horizontal)
- Color / legend
- Orange background, black legend, symbols, and arrow (temporary traffic control use)
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" × 24"
When & Where It's Used
- Shared bicyclist/pedestrian detours around closures
- Each turn of the detour marked with the directional arrow
- Used with SIDEWALK CLOSED and path-closure signing
Placement Context
- Where it sits
- At the detour decision point or route assembly identified by the design.
- CA MUTCD reference
- CA MUTCD 2026 Chapter 6G — TTC Zone Regulatory Signs
Related Signs
Browse Detour 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.
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