National Highways are constructed and maintained by the central government. They not only connect state capitals, important cities and important junctions, but also play important role in transportation of defense equipment and in providing services to strategic regions. National Highway Authority of India (NHAI) has taken the responsibility of major projects at various stages nationwide.
Following are the major National highway development projects:
1. Golden Quadrilateral Project: This project connects four important metropolitan cities (Delhi, Mumbai, Chennai and Kolkata) with 4/6 lane highways of 5846 km long. This project has helped in reducing time, cost and distance among the cities.
2. North – South and East – West corridors: Under this project, 4016 km long highway is to be constructed connecting Srinagar in the North to Kanyakumari in the South, whereas East-West corridors connect Silchar in Assam to Porbandar in Gujarat through 3640 km long highway.