V andals have done some senseless stuff on Bay Area Rapid Transit. They have removed the fire extinguishers from the station walls and sprayed them all over the place, for example. But what particularly vexed Alicia Trost, the chief communications officer for the train system that connects San Francisco, Oakland, and San Jose, was their destruction of map display cases at stations across the system: “You could not see the maps for years.” Now you can. In August, BART completed the installation