Biggest time consume at this point for any train is Mosur track change near Arakkonam. Railways should plan in such a way that main line (express/SF line) join with Platform 1 and 2 at Arakkonam so that train dont need to slow its speed before Arakkonam. They need to plan Arakkonam like VAPI station in Mumbai. Suburban track line should connect to 1A and 6