OBJECT MARKER (TYPE 3) Sign Requirements

1. When a OBJECT MARKER (TYPE 3) Sign Is Used

A striped Type 3 object marker used to mark the end of a roadway or a substantial obstruction, with stripes indicating the direction to pass.

• Marking the end of a closed roadway
• Mounted on barricades at closures
• Directing traffic around full obstructions

2. How and Where It Applies

In the field, OM3-L Object Marker (Type 3) is typically positioned at the at (or leading up to) the obstruction it marks, per ca mutcd object-marker standards. Common deployments include marking the end of a closed roadway; mounted on barricades at closures; directing traffic around full obstructions. 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 OM3-L at (or leading up to) the obstruction it marks, per CA MUTCD object-marker standards.

• 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: Per CA MUTCD object-marker standards.

• 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 at the end of a closed roadway or on barricades to mark a full obstruction and direct traffic to the open side.

6. Common Field or Planning Mistakes

• Object marker omitted on a hazard that remains near traffic.
• Stripe direction does not guide traffic to the correct side.
• Marker type not appropriate for the obstruction.
• Delineation not continuous with the channelizing devices.