According to a National Highway Traffic Safety Administration survey, what percentage of weekend nighttime drivers tested positive for illegal, prescription, or over-the-counter drugs?

The percentage of weekend nighttime drivers who tested positive for illegal, prescription, or over-the-counter drugs being 16% highlights a significant concern regarding drug use and driving safety. This statistic is critical for understanding the impact of drug impairment on road safety. It emphasizes that while many drivers may believe that driving under the influence of substances is less risky, a notable portion of drivers are indeed testing positive for various drugs, which can impair their ability to operate a vehicle safely. This serves as a reminder for drivers to be aware of the effects of medications and substances, reinforcing the importance of making responsible choices when planning to drive.