An 18-wheeler accident in Los Angeles is serious and often deadly. When a huge truck with 18 wheels collides with a vehicle with four wheels, there is bound to be serious injury or fatality. Anyone inside an automobile who survives this type of collision is likely to have serious injuries. Unfortunately, Los Angeles 18-wheeler accidents happen frequently. According to a 2002 Federal Motor Carrier Safety Administration (FMSCA) study, more than a third of all truck accidents were attributable to driver error, with speeding being the most common cause, followed by running off the road and drifting between lanes.