Keep Right and Keep Left signs instruct drivers to pass only on the indicated side of a specific roadway feature, such as a median, island, or obstruction, rather than giving a general lane assignment. A Keep Right sign, MUTCD code R4-7, directs traffic to stay to the right of the obstruction, while a Keep Left sign, MUTCD code R4-8, directs traffic to stay to the left of the obstruction.
Keep Right and Keep Left signs prevent head-on collisions by clearly showing drivers which side of a median, island, or obstruction they must pass on before the hazard becomes apparent. Without a Keep Right or Keep Left sign in place, a driver approaching an obstruction that splits the road may not immediately know which side to take, increasing the risk of a crash between Keep Right traffic and Keep Left traffic.
Under MUTCD Section 2B.32, the Keep Right (R4-7) sign is a vertical rectangle with a black legend and border on a white background, and the Keep Left (R4-8) sign follows the same specifications in mirrored form. Keep Right signs and Keep Left signs on this page are available with or without a directional arrow, in both symbol-only and text formats, to match different MUTCD-compliant configurations.
Keep Right and Keep Left signs on this page are available in aluminum, heavy-duty aluminum, and reflective aluminum, along with plastic options for lighter-duty use. Reflective grades include engineer grade and high-intensity grade, giving Keep Right signs and Keep Left signs strong visibility both day and night on roads, medians, and parking lots.
Since Keep Right and Keep Left signs are regulatory signs under the MUTCD, disregarding one is treated as a moving violation in most states, similar to disobeying a one-way or do not enter sign. Exact fines and penalties for ignoring a Keep Right or Keep Left sign vary by state and municipality, so checking local traffic law is recommended for a specific citation amount.
Keep Right and Keep Left signs are one category within a broader family of standardized directional traffic control devices, which also includes one-way signs, lane control signs, and arrow traffic signs. While one-way and lane control signs assign traffic to a general direction or lane, Keep Right and Keep Left signs specifically mark which side of an individual median, island, or obstruction traffic must pass on.
We are the industry leader in Keep Right and Keep Left signs, offering bold, MUTCD-compliant designs that clearly communicate with drivers at medians, islands, and other roadway obstructions.
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