If you cannot see a large vehicle's driver in their mirrors, what does that imply?

If you cannot see a large vehicle’s driver in their mirrors, that implies the driver cannot see you. Large vehicles have significant blind spots, especially on their sides and directly behind them. If you are in one of these blind spots, the driver is unaware of your presence, which increases the risk of a collision if you decide to change lanes or maneuver near the vehicle.

The context here is crucial for road safety. Understanding that being unseen by the driver means you're in a potentially dangerous position highlights the importance of maintaining a safe distance and visibility. Always take precautions, such as avoiding blind spots and ensuring that the driver can see you before making any lane changes or driving maneuvers.