An LTA spokesman said, "The 13-kilometre East Coast stretch of the TEL will connect commuters living in the eastern parts of Singapore and who are not directly served by the rail network currently, such as those in Tanjong Rhu, Siglap, Marine Parade, Upper East Coast and Bedok South, to the heart of the city.

"As part of the 43km-long TEL, the East Coast stretch will also connect commuters to the north-south corridor. Fully underground, this new stretch will have nine stations, including one interchange station with the Downtown Line (DTL). In all, TEL will have 31 stations, of which seven are interchanges."

Concurrently the LTA finalised the alignment for the Downtown Line Three Extension (DTL3e). This new extension will be 2.2km long and consists of two stations, including the interchange station with the East Coast stretch of TEL.

The East Coast stretch of TEL will be completed in two stages. The first seven stations from Tanjong Rhu to Bayshore will be ready in 2023, while the remaining two stations, the DTL3e and the depot will be completed in 2024.