RDSO Safety Trials Completed for Rolling Stock of Chennai Metro Phase 2  

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Chennai metro
Chennai metro

CHENNAI (Metro Rail News): Chennai Metro Project progressed as ​Chennai Metro Rail Limited has completed the Research Designs and Standards Organisation (RDSO) safety certification trials of the Rolling Stock of Phase 2. The trials were conducted between the  Poonamallee Bypass Metro Station and Porur Junction Metro Station. 

The safety certification trials were conducted by a team of officials from the external independent agency, Research Designs and Standards Organisation (RDSO) of the Ministry of Railways, Government of India. 

The trials commenced on August 16, 2025, to assess the passenger ride comfort at various speeds, reaching the design maximum of 90 km/h. The evaluation included a comprehensive examination of the traction system’s performance as well as extensive testing of braking performance across different operational modes. 

In May 2025, Alstom Transport India received a Letter of Acceptance (LoA) for the rolling stock Contract ARE04A of Chennai Metro Phase 2. CMRL plans to run 96 coaches as part of this rolling stock agreement. To know more about this new: Click Here

The Chennai Metro Phase 2 spans 118.9 km and comprises three new corridors. The Tamil Nadu government approved Phase 2 in 2019 at an estimated cost of Rs. 69,180 crore.

CorridorRoute Elevated Underground Total Length 
Corridor 3Madhavaram – SIPCOT 219.10 km 26.70 km 45.80 km
Corridor 4Light House – Poonamallee Bus Depot16 km 10.10 km 26.10 km 
Corridor 5Madhavaram – Sholinganallur41.20 km 5.80 km 47 km 

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