What should drivers be aware of when following trucks on the highway?

When following trucks on the highway, one of the primary concerns drivers should have is reduced visibility due to the size of the truck. Large trucks have significant blind spots, often referred to as "no zones," where the truck driver is unable to see smaller vehicles. This reduced visibility can create dangerous situations, especially if a smaller vehicle is closely following a truck or attempting to change lanes without realizing the truck driver may not see them.

Understanding this aspect is crucial for maintaining safety on the road. Drivers should ensure they stay clear of these blind spots and be cautious when approaching or passing large trucks. By being aware of the truck's dimensions and where it may obscure the view of the road, drivers can make more informed decisions, reduce the risk of accidents, and ensure safer travel for everyone on the highway.

The other options do not accurately address the critical issues associated with following trucks. Fuel efficiency has no direct bearing on safety; knowing solely the truck's speed does not account for the potential dangers presented by blind spots; and while the weight of the truck is important, it does not impact visibility in the same manner that the size and structure of the truck does.