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
Philadelphia, Wilmington and Baltimore Railroad the New Castle and Frenchtown and New Castle and Wilmington railroads, forming a branch line from Wilmington to Rodney. On May 21, 1877, it then absorbed the Southwark railroad, extending its main line to the Delaware River waterfront. In 1880, a conflict began between the PRR and the B&O, both of which operated over the PW&B. The B&O was working to reduce its reliance on PRR tracks; it had recently arranged to switch its Philadelphia-New York trains to the new Reading-controlled "Bound Brook Route," which had recently broken the PRR's monopoly on travel to New York via New Jersey. At