What must drivers use to make a left turn when a turning lane is provided for vehicles traveling in both directions?

When making a left turn in a scenario where a turning lane is provided for vehicles traveling in both directions, using extreme caution is essential. This is because a designated turning lane allows for safe separation from oncoming traffic, but it still requires careful attention due to the potential presence of vehicles coming from the opposite direction.

Being in a turning lane does not eliminate the risks involved, as drivers must remain vigilant about pedestrians, cyclists, and other vehicles that may be maneuvering in close proximity. Extreme caution ensures that the driver properly evaluates all aspects of the traffic environment before completing the turn, as well as following proper signaling and adherence to traffic signs.

The other responses, while they address aspects of driving, do not specifically focus on the important aspect of caution required for turning maneuvers in this context. Standard caution may not suffice in the unique conditions of a double-turning lane, quick decision-making could lead to errors in judgment due to lack of observation, and navigational tools are not directly applicable to the physical act of turning safely at an intersection.