Final answer:
The sign indicates that the road is transitioning into a divided highway with a median or barrier.
Step-by-step explanation:
The sign you described serves as an indication that the road is about to transition into a divided highway ahead. This means that a median or barrier will separate the opposing lanes of traffic. As a driver, it is essential to keep to the right side of the road when encountering this type of road configuration.
By staying on the right side of the road, you will be following the correct flow of traffic and ensuring safety. This sign warns drivers to prepare for the transition ahead and adjust their driving accordingly.
For example, if you see this sign, make sure to double-check your position on the road and stay in the right lane. Do not cross over into the left lane or into the oncoming traffic. The divided highway ahead will have a clear separation between lanes, so it's important to follow the designated route.