Large trucks such as 18-wheelers are a common feature of California highways, and they are not going anywhere anytime soon. Although these trucks serve an important purpose in the moving and transporting of goods, they can also be quite dangerous. Truck accidents can be deadly, and many large trucks are manned by overworked drivers.
Tractor-trailers and other similarly large trucks can weigh as much as 30 times more than a standard passenger vehicle. Pair this difference of weight with underride guards that routinely fail to stop cars from sliding underneath trucks, and it is easy to see how most deaths between large trucks and smaller cars occur in the latter. Efforts are currently underway to improve the safety and efficacy of underride guards, but the Insurance Institute for Highway Safety demonstrated that these guards fail even in low-speed accidents.