S Rly completes location survey for 4th Tambaram-Chengalpattu line

31-km-long project, designed to support speeds up to 160 kmph, aims to ease congestion

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SOUTHERN Railway has completed the final location survey (FLS) for the proposed fourth line between Tambaram and Chengalpattu. The 31-km stretch is being designed to support train speeds of up to 160 kmph the first of its kind in the region, where new lines are typically designed for 110 kmph.

Currently, limited line capacity prevents the introduction of additional local services despite rising demand, forcing many commuters to rely on private vehicles and adding to congestion on GST Road. The proposed fourth line is expected to enable dedicated double lines for both suburban and express trains.

The FLS report has been submitted to the Railway Board's project evaluation committee for approval, a Southern Railway official told TNIE.