What is a dropped lane?

A dropped lane refers to a mandatory turn lane or exit lane from a through lane, which is the correct characterization. This type of lane is designed to facilitate the safe and efficient movement of traffic, allowing vehicles to exit or turn without disrupting the flow of through traffic.

When drivers are approaching an intersection or a point where a lane drops, clear markings and signage indicate that they must either turn or exit, preventing confusion and promoting orderly traffic patterns. These lanes are essential for ensuring that vehicles can transition smoothly, especially in busy areas, without causing delays or increasing the likelihood of collisions.

In contrast, the other options describe different road conditions or lane designations but do not capture the essence of a dropped lane’s purpose and function in traffic management.