Final answer:
On roads where the speed limit is 50 mph or higher, drivers are required to signal at least 300 feet before turning to ensure road safety and legal compliance.
Step-by-step explanation:
The question relates to the rules of the road and safe driving practices, specifically how far in advance a driver should signal their intent to turn when traveling on roads with a high-speed limit. When driving on roads with a speed limit of 50 mph or higher, it is essential for safety to signal at least 300 feet before you make a turn. This distance gives other road users ample warning of your intentions and allows them to respond accordingly. It's also a legal requirement in many jurisdictions. The larger the speed of travel, the more distance is needed to safely notify other drivers of a turn due to increased stopping distances and reaction times at higher speeds.