The R4-7b Keep Right (Diagonal Arrow) sign requires drivers to pass to the right of a median, island, or obstruction. It uses a diagonal arrow pointing up and to the right and is the version placed where traffic bears right around the obstruction.
Mounted at the approach end of a median, island, or channelizing device. Confirm placement and supplemental plaques against the applicable CA MUTCD standard.
View this sign on the Federal MUTCD (FHWA)California-specific application notes and adoptions may differ. Review California requirements where applicable.

The R4-7b Keep Right (Diagonal Arrow) sign requires drivers to pass to the right of a median, island, or obstruction. It uses a diagonal arrow pointing up and to the right and is the version placed where traffic bears right around the obstruction.
The R4-7b Keep Right (Diagonal Arrow) sign requires drivers to pass to the right of a median, island, or obstruction. It uses a diagonal arrow pointing up and to the right and is the version placed where traffic bears right around the obstruction. In the field, R4-7b Keep Right (Diagonal Arrow) is typically positioned at the at the approach end of a median, island, or obstruction that traffic must pass on the right. Common deployments include mounted at the approach end of a median, island, or channelizing device; used where traffic must bear right around an obstruction; sized and placed per the CA MUTCD and the roadway type. Always confirm its size, retroreflective sheeting, spacing, and placement against the CA MUTCD 2026 and the reviewing agency before finalizing the traffic control plan.
Learn more about Keep Right (Diagonal Arrow) sign requirementsR4-7b Keep Right (Diagonal Arrow) is used in California per the CA MUTCD at medians, islands, and obstructions in and around work zones. Confirm its size, retroreflective sheeting, placement, and spacing against the CA MUTCD 2026 and the reviewing agency before finalizing the traffic control plan.
In Los Angeles, temporary regulatory changes (speed, one-way, turn or entry restrictions) generally involve LADOT review, and on state highways Caltrans District 7. Regulatory authority cannot be created by signing alone — confirm the change is authorized by the agency with jurisdiction over the roadway.
Confirm R4-7b Keep Right (Diagonal Arrow) is the correct KEEP RIGHT variant, size, and placement for the obstruction. Public Ready can review sign selection against the TCP and agency requirements.
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. Written against California MUTCD 2026 (effective January 18, 2026) and the Federal MUTCD 11th Edition. Official sources last verified June 2026.
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