Brisbane is currently in the process of launching the Brisbane Metro, although it is not a "metro" in the traditional underground rail sense; rather, it is a high-capacity, turn-up-and-go electric bus rapid transit system. As of early 2026, the initial stages are operational, with services like Metro 2 already carrying millions of passengers. The completion of the Adelaide Street Tunnel is a major upcoming milestone designed to remove over a thousand buses from CBD surface streets. However, plans for a broader expansion to the outer suburbs and Brisbane Airport have hit a significant hurdle. Recent reports indicate that the formal business case for the expansion—covering routes north to Carseldine, south to Springwood, and east to Capalaba—is not expected to be completed until mid-2028. This timeline suggests that many of the planned connections will not be fully realized before the Brisbane 2032 Olympic and Paralympic Games. While the project remains a centerpiece of the city's transport strategy to combat congestion, the current focus remains on optimizing the initial inner-city lines and securing the necessary multi-level government funding for the multi-billion dollar suburban extensions.