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
Cleveland Short Line Railway more than half used only that portion of the line west of the former Pennsylvania Railroad's Cleveland and Pittsburgh Railroad (then Conrail's Cleveland Line). In 1997, Conrail was jointly purchased by CSX and the Norfolk Southern Railway. CSX obtained the Cleveland Short Line. , CSX maintained of double track, and of single track. The Cleveland Short Line east of Short Line Junction is now CSX's Short Line Subdivision. As originally constructed, the Cleveland Short Line had of track and of sidings. The track grade was an extremely light 0.3 percent. The Cleveland Short Line connected with the Lake Shore &