Final Answer:
The sign indicates that the right lane ends, serving as a warning to drivers that they need to merge left. It typically has a rectangular shape with an upward-pointing arrow and may be accompanied by additional markings or symbols.
Step-by-step explanation:
The "right lane ends" sign serves as an important advance warning to drivers about an upcoming change in road conditions. Its purpose is to notify motorists that the right lane of the road is coming to an end, and they should prepare to merge into the adjacent lane to the left. The rectangular shape of the sign provides visibility and recognition, while the upward-pointing arrow emphasizes the direction in which the lane reduction will occur.
These signs are typically installed at an appropriate distance before the actual lane merge point, allowing drivers sufficient time to adjust their position and merge safely. In some cases, additional markings on the pavement, such as arrows or dashed lines, may accompany the sign to guide drivers through the merging process.