It is important to understand that commercial trucks need significantly more maintenance than other vehicles. Trucks are on the road for much more time and many more miles per day than a privately owned vehicle or family car. Also, since trucks are much larger and heavier than other vehicles, their working parts, such as their breaks and tires, tend to wear out much more quickly. All in all, a truck has a much larger chance of mechanical failure that could result in a truck accident and truck accident injuries. Especially if the tractor-trailer in question has not been inspected as outlined by national trucking regulations, a truck could suffer from a blown tire or failed breaks while on the highway or interstate.
It is the driver's responsibility to inspect their truck each time they get off the road. These checks should include tire inflation, kingpins, reflective strips, air lines, fluid levels, and weight distribution - but many times truckers rush through such checks or skip them altogether.