No Northern and Western parts some trains should be terminated at Tambaram.
So the South Chennai / ECR people are easy access to Tambaram.
Southern part trains should be operated from Chennai Egmore or Today proposed New ROYAPURAM TERMINAL ,since most of the southern District people are living in the North ( MADRAS ) Chennai ;Especially in Vannarapettai,Tiruvottiyur,Red Hills ,Ennore areas etc.For North Chennai people Tambaram is not suited for boarding and disembarking.