**Road markings** are signals painted on the road that help drivers understand traffic conditions and the rules to follow. An important color for these markings is **yellow**.

- The color **yellow** in road markings indicates that there are **stops and vehicle queues** or that traffic is **slow** in some sections. This is crucial to alert drivers about possible delays and the need to drive with caution.

- Additionally, in **roadwork zones**, the signals painted on the ground are yellow. This helps drivers quickly identify that they are entering a construction area and that they must follow the specific instructions for that area.

Therefore, the color **yellow** is essential in road markings to communicate special situations on the road, such as construction or slow traffic, and that is why it is a valid option for the color of a road marking.