Tseung Kwan O line the morning peak period, the Tseung Kwan O line uses 15 trains to maintain a frequency of 2.5 minutes betweem Tsemg Kwan O and North Point. The Tseung Kwan O line is the first MTR line with no tracks on viaducts. It was the only line with tracks completely in tunnels until the completion of LOHAS Park station, near which there are two short sections that are not in tunnels. The stations of Yau Tong, Po Lam and LOHAS Park are at ground level, but are completely shielded to minimise noise to the surrounding development. The rest of the line
Reading, Pennsylvania ran between Pottsville, Reading, Pottstown, and Philadelphia along the Pottsville Line until July 27, 1981, when transit operator SEPTA curtailed commuter service to electrified lines. Since then, there have been repeated calls for the resumption of the services. In the late 1990s and up to 2003, SEPTA, in cooperation with Reading-based BARTA, funded a study called the Schuylkill Valley Metro which included plans to extend SEPTA's R6 passenger line to Pottstown, Reading, and Wyomissing, Pennsylvania. The project suffered a major setback when it was rejected by the Federal Transit Administration New Starts program, which cited doubts about the ridership projections