Final answer:
If a bus or truck driver can't see you in their mirrors, you are in their blind spot, an area not visible despite the use of mirrors. This can pose a danger on the road, and drivers should take steps to check blind spots and signal early. Other drivers should stay out of large vehicles' blind spots to avoid accidents.
Step-by-step explanation:
If a bus or truck driver cannot see you in his or her rear view or side-view mirrors, you are in what's commonly known as the driver's "blind spot." The blind spot is the area around the vehicle that the driver cannot directly observe while at the steering wheel, despite the use of mirrors. It's critical for drivers to be aware of these spots, as vehicles or pedestrians in the blind spot may go unnoticed, potentially leading to dangerous situations or accidents.
It's essential for all drivers to take precautions to minimize the risks associated with blind spots. This can include properly adjusting mirrors before starting the vehicle, using turn signals early to indicate intentions to other drivers and regularly checking over one's shoulder when changing lanes or making turns to ensure that the blind spot is clear. Similarly, when you're driving near large vehicles such as trucks and buses, staying out of blind spots whenever possible is also a key safety practice.