How far in advance should you signal before making a turn?

It is important to signal at least 100 feet before making a turn to ensure that other drivers and pedestrians have adequate warning of your intent to change direction. This distance allows sufficient time for those around you to react appropriately, facilitating safer driving conditions. Signaling in advance helps communicate your intentions clearly and allows other road users to prepare for your turn without making sudden movements or decisions that could increase the risk of accidents.

The other distances, while they may seem reasonable, do not provide the same level of safety and awareness to other drivers and pedestrians as the 100-foot rule does. A shorter signaling distance might not give enough time for those around you to notice and respond accordingly, which could lead to confusion or collisions.