CHENNAI: The Commissioner of Railway Safety (Southern Region) on Wednesday conducted the final inspection of the Mass Rapid Transit System track between Tirumailai and Velachery. Commissioner K.S. Naidu conducted the inspection in a trolley along with Chief Administrative Officer, Southern Railway, R. Ramanathan and other officials. He got down from the trolley at a number of places and checked the track. On Thursday, the Commissioner will conduct speed trail on the track when a full EMU rake will be operated.