Metro work won’t affect traffic on Ring Road, old Delhi areas | delhi | Hindustan Times
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Metro work won’t affect traffic on Ring Road, old Delhi areas

Underground Metro construction along the busy Ring Road and Outer Ring Road will hardly affect traffic on these arterial stretches.

delhi Updated: Mar 03, 2012 23:52 IST
Subhendu Ray

Underground Metro construction along the busy Ring Road and Outer Ring Road will hardly affect traffic on these arterial stretches.

To ensure that construction on the city’s busiest stretches do not cause major snarls, the Delhi Metro Rail Corporation (DMRC) will use as many as 35 tunnel boring machines (TBMs) on the 44km section in its phase 3 expansion project. It has already started work on the Central Secretariat-Kashmere Gate line by lowering TBM near Janpath.

In its phase 3 project, the DMRC is using the highest number of TBMs ever used simultaneously in any urban centre across the world, said Delhi Metro officials, adding that this time the corporation would not adopt ‘cut and cover’ or any other method to carry out tunnelling.

Ring Road, Outer Ring Road and old Delhi areas witness most of the city’s traffic. According to officials, construction of the underground section under phase 3, which will take place in these areas, will not majorly disrupt traffic.

The section is scheduled to be completed by 2016. Had the DMRC not been using so many boring machines, the completion of the project would have taken 2-3 years more, said sources.

During the construction of underground section in phase 1 and 2, commuters had faced a lot of trouble due to traffic diversions.

In phase 2 when 34.89km underground section was built, the DMRC had used 14 TBMs, while only 5 TBMs were used to construct 13.17km underground section in phase 1.

Phase 3 will have 44km underground section with 30 stations across three corridors. The DMRC has an underground network of 48.06km with 31 stations.

“We have decided to use so many TBMs to carry out tunnelling work under phase 3, so that civil construction does not affect the busy city life and create traffic congestions,” said a DMRC spokesperson. “Using 35 TBMs will also help building tunnels swiftly,” he added.

Some of the busy arterial roads where underground construction will take place in phase 3 include Outer Ring Road (20km) on Janakpuri-Botanical Garden corridor, Ring Road (14.4km) on Mukundpur-Yamuna Vihar corridor and Old Delhi (9.4km) on Central Secretariat-Kashmere Gate link.

“Work on these busy stretches without TBMs would have led to massive traffic congestions,” the spokesperson said.

TBM, also known as mole, is a machine used to dig tunnels with a circular cross-section through soil and rock strata. It can bore through anything from hard rock to sand. The benefit of using TBMs for urban tunnelling is that the ground surface remains undisturbed during construction work. During the process of tunnelling, the ground subsidence is avoided.