SAN FRANCISCO - The First District California Court of Appeal on March 5 affirmed summary judgment for a transportation authority named as the defendant in a personal injury action, ruling that the plaintiffs failed to show that a train operator was negligent or that the defendant's train doors were dangerous (Yang Ti, et al. v. San Francisco Bay Area Rapid Transit District, No. A136954, Calif. App., 1st Dist., Div. 3; 2014 Cal. App. Unpub. LEXIS 1575).