This report in The Hindu today talks about the likely performance of the Chennai Metro. It is far from comprehensive, and only makes some brief points in filler fashion. Perhaps there will be more. Some of the comments from the public are more perceptive.
The real potential of Chennai Metro Rail will be realised when the system is expanded to connect new focal points such as Sriperumbudur to the West, Sholinganallur to the South. There is also no talk of integrated ticketing incorporating MTC buses, Suburban Rail and MRTS at the moment, and these systems suffer from severe neglect.
Above all, the media has failed to realise the importance of a unified way in which the system should work in the city, a process that has to be led by the Chennai Unified Metropolitan Transport Authority (CUMTA). The Jayalalithaa government has not spoken out about the role being played by this statutory body instituted during the previous DMK regime.
Meanwhile, here is a slideshow on the ongoing work on the Namma Metro in Bangalore. Good for Bengaluru!