Mobile & Short-Duration Operations
Mobile and short-duration operations move along the road or stop only briefly, so the traffic control moves with them rather than staying fixed. This guide covers the considerations specific to these operations.
Last reviewed: June 24, 2026
What It Is
Mobile operations move more or less continuously along the road, and short-duration operations stop only briefly at a location. Both rely on warning that travels with the work rather than a fixed setup.
Key Compliance Considerations
- Warning devices generally move with the operation rather than being fixed in place.
- Worker visibility and exposure are central because the setup is brief.
- The method must still match what the approved plan allows for the operation.
Planning Focus
- Confirm the approved plan or standard covers the mobile or short-duration method.
- Confirm what advance warning or shadow protection the operation requires.
- Confirm worker visibility requirements for the operation.
Field Focus
- Move warning devices with the operation as it advances.
- Keep worker exposure to traffic as low as the method allows.
- Confirm the method matches the approved plan or applicable standard.
Common Failures for This Operation
- Using a fixed-setup approach for an operation that needs moving warning.
- Underestimating worker exposure during brief stops.
- Using a method the approved plan or standard does not cover.