3Cat

Based on the provided articles, it's impossible to provide information about 3Cat. The articles focus on two separate events in Barcelona. The first article discusses the reopening of a section of the R4 Rodalies train line between Martorell and Sant Sadurní d'Anoia, which had been closed due to an accident in Gelida. Passenger train service has resumed following an agreement between Renfe and train driver unions. The second article reports on the success of the third edition of "Cap Butaca Buida," an event encouraging theater attendance. The event saw record numbers of attendees, participating venues, shows, and performances, indicating a growing interest in and support for the theater scene in Barcelona. Neither article provides any context or information related to an organization called 3Cat.