At what speed limit must you start signaling at least 100 feet before a turn?

The correct answer indicates that when driving at a speed limit of 45 mph or less, you are required to signal your intention to turn at least 100 feet before making the turn. This rule is in place to ensure safety on the road by providing ample notice to other drivers and pedestrians of your intended movements.

Signaling well in advance allows other road users to prepare for your turn, which is particularly important at higher speeds where reaction times are shorter. When driving at speeds above this limit, the distance you should signal may increase. Thus, understanding the signaling requirements relative to your driving speed helps maintain a safe driving environment and promotes better communication between drivers on the road.