Estorban v. Massachusetts Bay Transportation Authority

In this action for personal injuries allegedly caused by a poorly designed escalator, the plaintiffs appeal from the allowance of summary judgment on behalf of both defendants, the Massachusetts Bay Transportation Authority (MBTA) and its maintenance contractor, Millar Elevator Service Company. Viewing the record in the plaintiffs’ favor, we conclude that the Superior Court judge was correct in ruling that the lack of expert testimony was fatal to the plaintiffs’ claims. In these circumstances, “without adequately founded . . . essential, expert guidance” on the proper design and operation of…