Delhi Metro opens financial bids of signalling upgradation contract for Yellow Line

New Delhi, India (Urban Transport News): The Delhi Metro Rail Corporation Ltd (DMRC) on 25th March 2021 opened financial bids of contract package SOA-001 invited for upgradation of signalling system of 49.31 km Yellow Line (Samaypur Badli - HUDA City Centre) of Delhi Metro Rail Network.

Alstom Transport India, which is the sole bidder in the contract, has quoted Rs 192.90 crore against DMRC's estimate of Rs 89.31 crores. This is almost twice the amount of the estimated value of the contract.

Tender for this package was invited in December 2020 with a completion deadline of 18 months from the date of issuance of the letter of acceptance (LoA) to the contractor. Technical bids were opened in February 2021 where DMRC received only one bid from Alstom Transport India.

The scope of work includes Design, Manufacture, Supply, Installation, Testing and Commissioning of virtual signals and ATS system up-gradation of Line-2 (Yellow Line).

The virtual signalling system is an intermediate entry and exit location displayed on the signalling monitor at the control centre. The system can be used to divide the routes between any two fixed signals. However, since it is not a physical signal, it only controls trains having automatic train protection. The concept of virtual signalling aims to keep the metro trains operating at the normal speed of 35-37 kmph. The virtual signalling system will also ensure that the trains reach the nearest interlocking section at a faster pace. 

DMRC had been started up-gradation work in 2019 with the aim to provide smoother operations and prevent overcrowding at stations by identifying glitches and allow affected trains to run at regular speeds of 33-37 kmph until the next interlocking section.

For more details, please explore the Delhi Metro page of Urban Transport News.