M4-9b(CA) Pedestrian Detour (California) Sign
The California application of the pedestrian detour marker, used to route pedestrians around sidewalk and crosswalk closures along an accessible alternate path.
| Sign code | M4-9b(CA) |
|---|---|
| Federal code | M4-9b |
| Name | Pedestrian Detour (California) |
| Category | Pedestrian & Sidewalk Closure Signs |
| Shape | Rectangle (Horizontal) |
| Color | Orange background, black legend and symbol |
| California status | California-specific (CA MUTCD) |
| Typical CA minimum size | 24" × 12" (route marker / plaque) |
What This Sign Means
The California application of the pedestrian detour marker, used to route pedestrians around sidewalk and crosswalk closures along an accessible alternate path.
California Temporary Traffic Control Use
California emphasizes maintaining accessible pedestrian access; the pedestrian detour marker guides pedestrians around closures consistent with CA MUTCD and ADA requirements.
Common TCP Context
- Accessible pedestrian routing around closures
- Used with R9-series sidewalk-closure signs
- California right-of-way and encroachment-permit work
California Size Requirements
Typical minimum: 24" × 12" (route marker / plaque).
Sizes are CA MUTCD minimums and vary by roadway classification and speed. Verify against the CA MUTCD 2026 (CA MUTCD Part 6, Chapter 6F, and Part 2D (Guide Signs)), Caltrans sign specifications, and the reviewing agency.
Common Placement on a TCP
Where it sits: Along the detour route at each decision point.
CA MUTCD reference: CA MUTCD Part 6, Chapter 6F, and Part 2D (Guide Signs).
Los Angeles Area Usage Notes
In Los Angeles, pedestrian routing is scrutinized by plan reviewers. The City of LA Bureau of Engineering (BOE) and StreetsLA (Bureau of Street Services) require TCPs to maintain ADA-compliant pedestrian access at all times or provide a clearly marked, compliant alternate route. Show barricades, signs, and accessible surfaces on the plan; on state highways in LA County, Caltrans District 7 reviews the encroachment permit and TCP.
Common Plan Review Comments
- No ADA-compliant alternate pedestrian route shown on the TCP.
- Sidewalk closure not signed in advance (cross-here / ahead signs missing).
- Accessible width and surface of the pedestrian detour not noted.
- Barricades and detectable edging not shown at the closure.
Plan Review Notes
Confirm the California pedestrian detour is accessible, continuous, and ADA-compliant. Public Ready reviews accessible pedestrian routing.
Signs Commonly Used Together
These signs are typically deployed alongside M4-9b(CA) on a California TCP.
Rent or Purchase This Sign
Routing pedestrians on a California project? Public Ready can supply the California PEDESTRIAN DETOUR and sidewalk-closure signs.
Official References
- California MUTCD (Caltrans)
Free official resource — opens official government website
- Federal MUTCD (FHWA)
Free official resource — opens official government website
- Caltrans Sign Charts
Free official resource — opens official government website
- FHWA Standard Highway Signs
Free official resource — opens official government website
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.
Related Signs
Need signs for a California project?
Need to rent, purchase, or include traffic control signs on a California project? Public Ready can help with sign rental, purchase, sign packages, TCP sign legends, and permit coordination.