What might increase the risk of crashes for drivers who have been drinking?

Experiencing a new environment can significantly increase the risk of crashes for drivers who have been drinking. When individuals are in unfamiliar surroundings, they may have difficulty navigating, recognizing landmarks, and understanding local traffic laws. This lack of familiarity can lead to poor decision-making and an increased likelihood of errors, especially when combined with the impairment caused by alcohol consumption.

In contrast, driving a familiar route might provide some level of comfort and understanding, helping a driver rely on memory and experience. Similarly, familiarity with alcohol can lead to a false sense of confidence in one's ability to drive, but does not inherently increase risk due to environmental factors. Using safety features in cars could potentially mitigate risks rather than increase them, as these features are designed to enhance safety while driving.