Lane Merge and Reduction Warning Signs - Road Safety Guide #1840821 (License: Personal Use)

The left sign depicts a black upward arrow with a diagonal branch merging into it, signaling that an adjacent lane will join the current one. The right sign shows two parallel lines converging toward the right with a dashed centerline, indicating the road narrows or a lane ends ahead. Both are standardized under the Manual on Uniform Traffic Control Devices (MUTCD) for high-visibility advance warning.

Used on highway approach ramps, construction zones, and urban arterials to warn drivers of upcoming lane configuration changes; supports defensive driving education, driver’s license study materials, and transportation safety websites.