What is the purpose of white lettering and symbols painted on the roadway?

The presence of white lettering and symbols painted on the roadway serves to supplement traffic signs by providing important information regarding traffic rules and regulations directly on the road surface. This includes instructions such as lane designations, pedestrian crossings, and directional guidance. By placing this information directly in the driver's line of sight, it reinforces the messages conveyed by road signs and helps ensure that drivers have clear and immediate access to critical information as they navigate the road.

This visual aid is crucial for promoting safety, as it aids in making decisions about lane changes and understanding the rules of the road in real-time, thereby enhancing overall traffic flow and reducing accidents. The alternative options do not effectively capture the primary function of these markings, which is to clarify and support existing traffic control measures.