Classification or Types of Roads:
The roads are classified based on many factors as follows.
- Earthen roads
- Gravel roads
- Murrum roads
- Kankar roads
- WBM roads
- Bituminous roads
- Concrete roads
1. Earthen Roads
Earthen roads are laid with soil. They are cheaper than all types of roads. This type of road is provided for fewer traffic areas or countryside areas. A good drainage system should be provided, which reflects excellent performance for a more extended period.
2. Gravel Roads
Gravel roads are also low-quality roads, but they are better when compared with earthen roads. A compacted mixture of gravel and earth is used as pavement material in this case.
3. Murrum Roads
Murrum is a matter obtained from the disintegration of igneous rocks by weathering agencies. This is used to make roads called Murrum roads.
4. Kankar Roads
Kankar is an impure form of limestone. Kankar roads are provided where lime is available in a reasonable quantity. The Kankar roads are low quality and performance.
5. WBM Roads
Water Bound Macadam (WBM) roads contain crushed stone aggregate in its base course. The aggregates are spread on the surface and rolled after sprinkling water. WBM roads provide better performance compared to earthen, gravel, Murrum, and Kankar roads.
6. Bituminous Roads
Bituminous roads are prevalent roads around the world. They are the most used roads in the world. This road types are low in cost and suitable for driving conditions. The thickness of bituminous roads depends upon the sub grade soil conditions.
7. Concrete Roads
Cement concrete is used to construct the pavements in case of concrete roads. These are very popular and costlier than all other types of roads. They are not flexible, so they require less maintenance.
Â
