destinations primarily within Tamil Nadu; it also handles a few inter–state trains. The Chennai suburban railway network, one of the oldest in the country, consists of four broad gauge sectors terminating at two locations in the city, namely Chennai Central and Chennai Beach. The fourth sector is an elevated Mass Rapid Transit System which links Chennai Beach to Velachery and is interlinked with the remaining rail network. Construction is underway for an underground and elevated Chennai Metro rail.
Road
Chennai is connected with Indian cities by four major National Highways (NH) that originates in the city. They are NH 4 to Mumbai (via Bangalore), NH 5 to Kolkata (via Bhubaneswar), NH 45 to Theni (via Tiruchirapalli) and NH 205 to Anantapur, Andhra Pradesh (via Tirupati). Most of the state highways are linked with the city that run up to Pondicherry and other districts in Tamil Nadu and neighbouring states.
As of 2011, The Chennai Mofussil Bus Terminus (CMBT) located in the city, is among the largest bus station in Asia. It is the main intercity bus station of Chennai, administered by 7 government-owned transport corporations that operate inter–city and inter–state bus services. There are many privately owned bus companies which provide similar transport services. The Metropolitan Transport Corporation (MTC) provides an exclusive inter-city bus service, consisting of 3,421 buses on 724 routes, that transport an 5.52 million passengers daily.
The other means of transport in the city are; Vans, (Known as Maxi Cabs) and auto rickshaws, on call Metered taxis and tourist taxis. The overall transport infrastructure in Chennai, provides coverage and connectivity with in city and its suburbs, where as the growth in transport vehicles has increased traffic congestions, air and sound pollution. The government planned multiple actions to control these issues and constructed grade separators and flyovers at major intersections,
