What should you do if you cannot see the truck driver in their side mirror?

Choosing to avoid lingering in a truck's blind spots is the most appropriate action to take if you cannot see the truck driver in their side mirror. Large trucks have significant blind spots on both sides, directly behind, and sometimes in front of them. If you're in one of these blind spots, the driver is unable to see you, which poses a danger.

By ensuring you stay out of these blind spots, you reduce the risk of an accident. If you find yourself in a position where the driver can't see you, it's wise to adjust your speed or position to move into a place where visibility is restored. This promotes safer driving practices and helps keep all road users safe.

The other options, such as speeding up, assuming visibility where there may be none, or maintaining the same speed, can contribute to dangerous situations and increase the risk of collisions. Safety relies on being aware of your surroundings and positioning yourself where you can be seen by others on the road, especially larger vehicles like trucks.