Types of roads | Classification based on Construction materials used | Bituminous Roads |

part 1 Classification based on Speed and accessibility.... link.......   • Types of roads | Classification based...  
In this video we will study about......
Types of roads Classification based on Construction materials used,
Earthen Roads,
Gravel Roads,
Murram Roads,
Kankar Roads,
Water bound Macadam [WBM],
Bituminous Roads,
Cement Concrete Roads,
Types of roads Classification based on Construction materials used,
Based on Materials used: 
In this category, I’m going to explain different types of roads based on the materials used in the construction of the road.
Earthen Roads: 
The roads which are laid with the available soil at the site are called Earthen Roads. These are the cheapest roads among all the roads. Earthen roads are designed for very low volume traffic. 
Available soil is laid in two-three layers and surface of the road is compacted with the rammer to expel the excess voids present in the soil. 
These roads are also called as temporary roads usually laid for moving constructing vehicles while building a structure or for moving army vehicles during war times.  
it is not recommended to go with Earthen roads in monsoon as the soil may runoff during rain.
Gravel roads
are the second cheapest among all the types of roads and they are also better than Earthen roads.
In this type of roads, the mixture of gravel and earth (available soil at the site) is paved on the surface and compacted. Gravel roads are also called as metal roads. These types of roads are easily built and generally laid in villages.