Water Bound Macadam The concept of water bound macadam road was suggested by John Macadam, who was a Scottish engineer. The road whose wearing course consists of clean crushed aggregates, mechanically interlocked by rolling and bound together wit…
IRC classification of roads IRC(Indian Roads Congress) has classified the roads in the India in the following 5 categories: (a) National Highways ( b) State Highways (c) Major District Roads (d) Other District Roads (e) Village Roads National Highway…