Delhi Metro | DMRC starts trial runs between the Janakpuri West and Terminal 1 – IGI Airport


New Delhi: The Delhi Metro Rail Corporation (DMRC) today started trial runs between the Janakpuri West and Terminal 1 – IGI Airport Metro stations on the upcoming Janakpuri West – Botanical Garden Magenta corridor of Phase 3.

With the beginning of trial runs on this 10 kilometre section today, trials are now in progress on both the ends of the Magenta corridor which connects west Delhi with NOIDA along the Outer Ring Road. Trials between Botanical Garden and Kalkaji Mandir (13 kilometres) on the other end of this corridor had started on 27th October earlier this year.

Track laying is nearing completion in the remaining underground section between Terminal 1 – IGI Airport and Kalkaji Mandir and trials will be started on this section also in the coming months. With the depot being located at Kalindi Kunj and track laying work still in progress in some sections between Kalkaji Mandir and Terminal 1 – IGI Airport, this particular stretch between Janakpuri West and Terminal 1 – IGI Airport did not have direct depot connectivity for movement of trains.
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Therefore, to expedite the process of commencing trials on this section, an entire six coach train was lowered on the tracks near the Sadar Bazar Cantonment station using cranes and trailers recently.

The train was unloaded on the ramp near Sadar Bazar Cantonment through a carefully planned operation, in which the coaches were lowered near the ramp (the location where the alignment goes underground from elevated) and positioned on the tracks with the help of special high capacity cranes and trailers. The process needed absolute precision to avoid any physical damage to the trains or the civil structure.

Delhi Metro’s new UTO (Unattended Train Operations) enabled trains will operate on this corridor. The new trains, with extremely high levels of automation, will now undergo rigorous trials between these stations to ensure that they are ready for smooth operations after the commissioning of the corridor. Initially, train operators will run the trains, but gradually, driverless operations (on the UTO mode) will be possible.

During these trials, the interface of the Metro train will be checked to ensure that there is no physical infringement with civil infrastructure during the movement of the train on the track and also testing of various subsystems of coaches shall be done.

Later on, in stages, the new signaling technology to be implemented on this corridor, the Communication Based Train Control (CBTC) will also undergo rigorous testing. The response of the train at different speeds, braking of the train and the interconnection with the Operations Control Centre (OCC) will also be monitored during the trials. The behavior of the track system and the Over Head Electrification (OHE) will be checked repeatedly.

This particular section from Janakpuri West till Terminal 1 – IGI Airport consists of six stations out of which five are underground and one is elevated. The stations are  –  Janakpuri West (interchange with Blue Line), Dabri Mor, Dashrathpuri, Palam, Sadar Bazar Cantonment (only elevated station of the stretch) and Terminal 1 – IGI Airport. With the commencement of trials on this section, now about 23 kilometres out of the 36 kilometre length of this corridor are already undergoing trial runs.



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