Final answer:
In the United States, drivers are required to activate their turn signal 100 feet before turning in order to communicate their intentions to other drivers and promote road safety.
Step-by-step explanation:
In the United States, it is required to activate your turn signal a minimum of 100 feet before turning. This rule is outlined in the Driver's Manual provided by the Department of Motor Vehicles (DMV).
The purpose of using turn signals is to communicate your intentions to other drivers on the road, allowing them to anticipate your movement and take appropriate action. By activating your turn signal in advance, you provide sufficient time for other drivers to react and adjust their driving accordingly. It helps in maintaining smooth traffic flow and prevents accidents.
For example, if you are planning to make a right turn at an upcoming intersection, you should activate your turn signal at least 100 feet before reaching the intersection. This gives drivers behind you sufficient notice that you will be slowing down and turning, allowing them to merge into the appropriate lane or slow down safely. It also helps pedestrians and cyclists understand your intentions, promoting overall safety on the road.