Thane Metro 4, 4A Gets Safety Clearance

The Mumbai Metropolitan Region Development Authority (MMRDA) has obtained safety clearance for the rolling stock of Thane's Metro 4 and 4A, marking a significant milestone towards commencing passenger operations. The clearance covers the trains to be deployed on the initial operational stretch between Gaimukh and Cadbury Junction.

The first phase of the project will see six rakes being deployed for passenger services. Since the main Metro 4 depot is yet to be completed, MMRDA has developed a pit line at Gaimukh to facilitate stabling, inspection, and routine maintenance of the trains. The Gaimukh facility comprises two island platforms and four lines, with two lines earmarked for passenger operations and the remaining two for servicing and handling the rakes.

The safety clearance for the rolling stock comes after the corridor cleared the Research Designs and Standards Organisation (RDSO) certification in June. The RDSO testing examined critical systems, including rolling stock, track, signalling, train speeds, and safety mechanisms. The first phase comprises the 10.5-km Gaimukh-Cadbury Junction section, covering eight stations.

The corridor has been undergoing regulatory scrutiny as MMRDA works towards obtaining all mandatory approvals before opening it to commuters. The latest clearance follows a prolonged certification process for the corridor, with the RDSO certification for the first phase received on June 2, 2026, after nearly 209 days of waiting and coordination with various agencies.

Trial runs were conducted on the initial 4.4-km section covering Gaimukh, Govaniwada, Kasarvadavali, and Vijay Garden. The trains used during the trials had remained stationed on the elevated stretch for several months, drawing criticism after photographs and videos of the dust-covered rakes surfaced on social media.

Metro Line 4 runs between Wadala and Kasarvadavali, while Metro 4A extends the corridor towards Gaimukh. The combined corridor is planned as a major east-west connectivity link between Mumbai and Thane. The full Metro 4 corridor is 32.32 km long, while Metro 4A adds another 2.88 km. Together, they are planned to provide connectivity with several existing and upcoming metro corridors and railway networks.

The launch of Metro 4 and 4A is expected to improve connectivity between Mumbai and Thane, making it easier for commuters to travel between the two cities. The project is a significant step towards improving the infrastructure of the Mumbai Metropolitan Region.

The MMRDA is working towards obtaining all necessary approvals before opening the corridor to commuters. With the safety clearance for the rolling stock obtained, the project is one step closer to completion. The launch of Metro 4 and 4A is expected to have a significant impact on the region, improving connectivity and reducing travel time for commuters.

In conclusion, the safety clearance for the rolling stock of Thane's Metro 4 and 4A is a significant milestone towards commencing passenger operations. The project is expected to improve connectivity between Mumbai and Thane, making it easier for commuters to travel between the two cities. With the launch expected soon, commuters can look forward to a faster and more convenient travel experience.