<P> The city and metropolitan area are served by major arterial roads that run either in an east - west or north - south direction . Anna Salai--or Mount Road as it is more popularly called--is the city's most famous road . It traverses most of central and south Chennai and leads on to the Grand Southern Trunk Road . </P> <P> (National Highway 45) to Thiruchirapalli . The road runs in a north - east to south - west direction . Other arterials include Kamaraj Salai (north - south), Poonamalee High Road (east - west), Radhakrishnan Salai (east - west), and Sardar Patel Road (east - west). The East Coast Road starts from Thiruvanmiyur and connects Mahabalipuram, Pondicherry and extends beyond . </P> <P> The first motor bus service in the city was organised by the Madras Tramway Corporation between 1925 and 1928 . Most motor bus service providers in the city were nationalised as per the 1939 Motor Vehicles Act . The Pallavan Transport Corporation was created on 1 January 1972 to serve Madras city . It had a fleet of 1029 buses . In 1994, Pallavan Transport Corporation was bifurcated into Dr. Ambedkar Transport Corporation Limited for northern Madras and Pallavan Transport Corporation Limited for southern Madras . The two were reunited in 2001 to form the Metropolitan Transport Corporation . The bus service, currently, plies about 4,000 buses on 622 routes, moves an estimated 5.038 million passengers each day . </P> <P> The Chennai Mofussil Bus Terminus (CMBT), opened in 2001, is one of the largest bus station in Asia, and serves as the terminus for all intercity buses from Chennai . The CMBT is located on the Inner Ring Road at Koyambedu in the western part of Chennai, replacing the older terminus on the Esplanade in the city centre . State transport and private bus services to all major cities and towns in Tamil Nadu and neighbouring states start from here . </P>

Who started first ever bus service in madras