Final answer:
When traveling on a highway or road, it is recommended to signal at least 100 feet before making a turn.
Step-by-step explanation:
When traveling on a highway or road, it is important to signal your intentions to other drivers before making a turn. According to the general guidelines, you should signal at least 100 feet before making a turn on a highway. This distance allows other drivers to be aware of your intentions and adjust their driving accordingly.