When are you required to signal before a turn?

Signaling before a turn is a crucial part of safe driving practices and is governed by rules that help other road users anticipate your actions. In Delaware, as well as in many other jurisdictions, the requirement to signal at least 100 feet before making a turn is designed to ensure that drivers and pedestrians have sufficient notice of your intentions. This advance notice gives other road users time to react appropriately, reducing the likelihood of accidents.

By signaling 100 feet in advance, you communicate clearly with vehicles behind you, those in adjacent lanes, and pedestrians who may be crossing. This is particularly important in busy or complex traffic situations where sudden moves can lead to confusion or collisions.

The other distances specified in the other options may not provide adequate warning for those around you, thus potentially increasing risks on the road. Additionally, signaling only when pedestrians are present would not account for the need to communicate with other drivers, making it insufficient as a general rule for turning.