The mere fact that an injury occurs after a bus accident does not mean that the driver was at fault. All plaintiffs bear the burden of proving that bus driver negligence was the cause of their losses.In many cases, plaintiffs must establish negligence by showing that the bus driver violated a certain traffic law. This may involve speeding, tailgating, or failing to signal or yield when required. A Carrollton attorney could follow an accident case through traffic court to determine if a bus driver was liable for a traffic code violation.However, other cases do not involve tickets. In these situations, a plaintiff needs to show that simple carelessness led to the collision.