PEDESTRIAN DETOUR Sign Requirements

1. When a PEDESTRIAN DETOUR Sign Is Used

Directs pedestrians along an alternate accessible route when a sidewalk or crosswalk on their normal path is closed.

• Sidewalk and crosswalk closures requiring a pedestrian route
• Used with R9-series sidewalk-closed signing
• Maintaining ADA-accessible pedestrian access

2. How and Where It Applies

In the field, M4-9b Pedestrian Detour is typically positioned at the along the detour route at each decision point. Common deployments include sidewalk and crosswalk closures requiring a pedestrian route; used with R9-series sidewalk-closed signing; maintaining ADA-accessible pedestrian access. Always confirm its size, retroreflective sheeting, spacing, and placement against the CA MUTCD 2026 and the reviewing agency before finalizing the traffic control plan.

3. Placement and Application Notes

Position M4-9b along the detour route at each decision point.

• Place the sign where drivers have a clear, unobstructed view on approach.
• Mount at the standard height and setback from the edge of the traveled way.
• Do not mount with other signs on the same post unless space constraints require it.

4. Standard Sizes and Visibility Considerations

Typical minimum: 24" × 12" (route marker / plaque).

• Choose size based on roadway speed, sight distance, and mounting location.
• Maintain high retroreflectivity for maximum night and adverse-weather visibility.

5. California Notes

Used in California to route pedestrians around sidewalk or crosswalk closures, supporting an accessible pedestrian path through or around the work zone.

6. Common Field or Planning Mistakes

• 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.