What does a solid or broken white line indicate?

A solid or broken white line on the roadway serves a specific purpose in managing traffic flow. The presence of a broken white line indicates that vehicles may change lanes or pass other vehicles safely, as long as it is safe to do so. This marking allows drivers to understand that lane changes are permitted, contributing to a more fluid movement of traffic.

In contrast, a solid white line indicates that lane changes are discouraged, typically because it may be unsafe to do so. Therefore, understanding the difference between solid and broken lines is critical for maintaining safety and adherence to traffic regulations. This distinction helps drivers navigate roads more effectively while complying with the rules established to minimize accidents and enhance overall traffic safety.