Final answer:
To signal a turn safely, it is recommended to start signaling about 100 feet or 30 meters before the turn.
Step-by-step explanation:
To signal a turn safely, it is recommended to start signaling about 100 feet or 30 meters before the turn. This gives other drivers enough time to notice your signal and adjust their driving accordingly. However, it is important to also consider the specific laws and regulations in your region, as some may have different requirements.