Metro to have double decker line in the Phase II project

Corridor 4 and Corridor 5 to run one below the other other for 5 km

February 06, 2022 07:03 pm | Updated 07:04 pm IST - CHENNAI

Changing landscape: Metro Rail’s Corridor 4 and Corridor 5 in Phase II project will have four transit stations.

Changing landscape: Metro Rail’s Corridor 4 and Corridor 5 in Phase II project will have four transit stations.

When commuters travel in Metro train under Phase II project in about four years from now, switching between two stretches — Corridor 4 and Corridor 5 — will be seamless as they will run parallel to each other for five km. This will primarily help people living in and around Poonamallee, Kattupakkam, Karambakkam, Porur and neighbouring areas travel to any northern or southern part of the city comfortably.

The Phase II project has begun in the city and it is being built with three corridors — Madhavaram to SIPCOT (Corridor 3), Light House to Poonamallee (Corridor 4) and Madhavaram to Shollinganallur (Corridor 5) and with funding from the State and Union governments and international banks, ₹61,843 crore would be spent on construction of this project.

In such an extensive public transport system, it is important to have well-planned transit stations so that commuters don’t get lost changing trains. In this project, Corridor 3 and Corridor 5 intersect at Shollinganallur and Madhavaram and Corridor 3 and Corridor 5 at Thirumayilai. But Corridor 4 and Corridor 5 have four transit stations as the alignment runs along the same direction for about 5 km, with one corridor running above the other.

According to officials of Chennai Metro Rail Ltd. (CMRL), the double decker stretch will include four stations built at two levels — Alwarthirunagar, Valasaravakkam, Karambakkam and Alapakkam. While the Corridor 4 will be on the first level and will be constructed at 13.5 metres above the ground, Corridor 5 will be raised above this level at a height of 21 metres.

“The work has been going on for a few months now and after soil testing, the contractor has been executing pile work after which pillars will be raised. These two stretches will run with shared pillars for 5 km. And, there will be common concourse (ticketing level) and two different platforms,” an official said.

The advantage is, any commuter from Porur can travel quickly to places like Adyar, Mylapore, Shollinganallur, Taramani, Madhavaram, Retteri, Majambakkam and CMBT.

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