If a driver is flashing their lights at another vehicle, it usually means what?

When a driver flashes their lights at another vehicle, it typically indicates that the driver wants to pass. This gesture is a common way for drivers to communicate their intentions on the road, especially in situations where it may not be clear that they wish to overtake another vehicle. Flashing lights can alert the driver in front that someone is behind them intending to pass, and it serves as a courtesy that can help facilitate safe and smooth traffic flow.

Understanding this gesture is crucial for maintaining proper driving etiquette and ensuring that drivers are aware of each other’s intentions, which contributes to overall road safety. It's important for drivers to be familiar with these non-verbal signals to improve communication on the road, especially in situations such as highway driving where overtaking slower vehicles is often necessary.