Pittsburgh Light Rail

The Pittsburgh Light Rail (commonly known as The T) is a 26.2-mile (42.2 km) light rail system in Pittsburgh, Pennsylvania, and surrounding suburbs. It operates as a deep-level subway in Downtown Pittsburgh, but runs mostly at-grade in the suburbs south of the city. The system is largely linear in a north-south direction, with one terminus near Pittsburgh's central business district and two termini in the South Hills. The system is owned and operated by Pittsburgh Regional Transit. The T is one of the surviving first-generation streetcar systems in North America, with the oldest portions of the network dating back to 1903 and the Pittsburgh Railways. It is also one of only three light rail systems in the United States that continues to use the broad 5 ft 2+1⁄2 in (1,588 mm) Pennsylvania Trolley Gauge on its lines instead of the 4 ft 8+1⁄2 in (1,435 mm) standard gauge. In 2022, the system had a ridership of 2,429,500.