How far in advance should you signal before a turn in a commercial vehicle?

Signaling in advance before making a turn is crucial for safety, especially when driving a commercial vehicle. The correct answer indicates that you should signal at least 100 feet before making a turn. This distance gives other road users, including vehicles and pedestrians, ample time to react to your intentions. It is particularly important in a larger vehicle, where turning might require more space and time due to its size and weight. Signaling well in advance helps prevent accidents and ensures smooth traffic flow by clearly communicating your upcoming maneuver to those around you.

In contrast, signaling only 50 or 150 feet may not provide optimal safety; 50 feet may not allow enough time for drivers around you to respond appropriately, particularly in busy or fast-moving traffic. Signaling 150 feet ahead might be excessive in some situations, depending on the type of road and traffic conditions. Lastly, signaling when you are already in the intersection does not provide other road users with any notice of your intentions, significantly increasing the risk of a collision.