The Downtown line generally goes in an east–west direction from Bukit Panjang in the northwestern side of Singapore, through the downtown area of Singapore, to Tampines and the Singapore Expo in the east. It is long and is entirely underground. Before Bukit Panjang station, there exists a brief northwards extension to the line's depot Gali Batu Depot. The line begins at the Bukit Panjang station and then goes in the southeast direction, running parallel to Upper Bukit Timah Road and along the Bukit Timah Canal through Bukit Timah. The line then enters the central area, passing through Little India station before reaching the Central Business District via Bugis station. The Downtown line runs parallel to the Circle line at the Promenade and Bayfront stations. Passing through the Downtown Core, the line interchanges with the North East line at Chinatown station.
