The transport system of Kolkata, a city in India, is a mix of modern mass rapid transport and old transport modalities like rickshaws. Kolkata is connected to the rest of India by the National Highways, the extensive network of the Indian Railways, National Waterways and by air. The most traffic to Northeast India route via Kolkata. Roads Howrah Bridge (also known as Rabindra Setu) and Vidyasagar Setu (also known as Second Hooghly Bridge) are two bridges connecting Kolkata with Howrah over the Ganges. Bally Bridge (also known as Vivekandanda Setu) is the third bridge over the river at the northern reach of the city near Dakshineswar from Howrah.It is a road cum rail bridge. The fourth and the newest one is Nivedita Setu which is a toll bridge beside Vivekananda Setu. Since Kolkata suffers from traffic congestion like other Indian cities, a network of expressways like Kona Expressway, Kalyani Expressway, Belghoria Expressway, flyovers and widening of southern stretch of Eastern Metropolitan Bypass are being created to ease up road traffic. Maa Flyover is an important flyover in Kolkata. A Large network of roads are spread over in Kolkata which helps to reduce traffic congestion. Elevated roads are present in New Town and Rajarhat area of Kolkata. Kolkata is connected to other parts of India by the National Highways 2, 6, 34, and 117. The Belghoria Expressway connects NH 34 with NH 2 and 6 via the Nivedita Setu while the NH 117 is connected to NH 6 by the Kona Expressway via the Vidyasagar Setu. Railways Kolkata is well-connected to the rest of India by an extensive railway network of the Indian railways. Two divisions of the Indian railways - the Eastern Railway and the South Eastern Railway - are headquartered in the city. A total of five railway stations serve Kolkata. The two major railway stations of the city are at Howrah and Sealdah. The third station is called Kolkata has recently been constructed. This station is in North Kolkata and can be reached by a road opposite to the Radha Gobinda Kar Medical College & Hospital just beyond Shyambazar. International trains such as Maitree Express and Bandhan Express depart from Kolkata Station. The fourth station is Santragachi Junction which operates weekly and bi-weekly express trains to ease pressure on Howrah junction. The fifth station is named Shalimar Railway Station which used to be a goods yard has been