 The station also serves as a transfer point for AC Transit buses and business park shuttles.Coliseum station opened as part of the first segment of the BART system on September 11, 1972.It was soon connected to its namesake, the Oakland–Alameda County Coliseum/Oakland–Alameda County Coliseum Arena sports complex, by a pedestrian bridge over San Leandro Street and the Union Pacific Railroad's right-of-way located adjacent to the sports complex.