When making a left turn from Pine Street onto Cedar Street with a long vehicle, you should:

When making a left turn from Pine Street onto Cedar Street in a long vehicle, it is essential to execute the maneuver at the appropriate time to ensure safety and avoid collisions. The correct approach is to begin turning your vehicle when you are halfway through the intersection. This timing allows the longer vehicle, which requires more space to complete the turn, to align adequately with the new roadway and minimizes the risk of encroaching into the path of oncoming traffic or pedestrians.

Starting the turn too early can lead to the back end of the vehicle swinging wide into the adjacent lane, which is particularly concerning with longer vehicles that have a greater turning radius. If the turn is commenced before reaching the midpoint of the intersection, it may inadvertently create a hazardous situation for other road users, especially in busy intersections.

In contrast, preparing to turn before entering the intersection could lead to misalignment and insufficient space for the maneuver. Additionally, waiting until you can see the entire street before turning could result in causing unnecessary delays and confusion, as conditions might change suddenly with oncoming traffic. Thus, the safest and most effective method for a lengthy vehicle is to make the turn as directed at the midpoint of the intersection.