What is the function of a two-way left turn lane?

The function of a two-way left turn lane is specifically designed for left-turning vehicles from either direction. This lane allows vehicles traveling in opposite directions to safely make left turns across traffic without interfering with the flow of through traffic. It is usually marked with solid and dashed yellow lines to indicate its purpose and to prevent use for general travel or passing.

The two-way left turn lane helps to improve safety by minimizing conflicts between vehicles making a left turn and those traveling straight through the intersection. By providing this dedicated space, it reduces the complexity of maneuvering into traffic and helps prevent accidents that might occur if vehicles were to turn left from the regular travel lanes. Additionally, it helps maintain traffic flow by allowing left-turning vehicles to wait in a designated area rather than blocking through lanes.