Parma Trolleybus Network, Italy May 3, 2025 | Europe Project Update, Project Update Developer/Operator: The system is being developed and operated by Trasporti Pubblici Parma SpA (TEP). Project description: Expansion of the Parma trolleybus network in Italy. Background: The Parma tro... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password