What risks could arise if you drive in the right-hand lane alongside a truck?

Driving alongside a truck in the right-hand lane can be risky because the truck driver may not see you clearly, which means you can be "unseen" or in the truck's blind spot (risk 1). Additionally, trucks have large blind areas where smaller vehicles can be easily "overlooked" or missed by the driver, increasing the danger of accidents (risk 2). However, risk 3, getting burned by exhaust fumes, is not a common concern in terms of traffic safety and is not a primary reason to avoid driving next to a truck. Always try to avoid staying alongside a truck for long periods; instead, pass quickly and safely to reduce danger.