Difference between flexible pavements and rigid pavements

Following are the difference between flexible pavements and rigid pavements such as :

Rigid pavements and Flexible pavements

Rigid pavements and Flexible pavements

Flexible pavement Rigid pavement
The earthen, gravel, water bound macadam and bituminous roads are known as flexible pavement. Cement concrete roads are known as rigid pavement.
Inflexible pavement the top surface takes the shape of the subsurface soil e.g. W.B.M road The rigid pavement has more stiffness and capacity to bridge over loose soil pockets in the sub-grade e.g. Concrete roads.
Due to flexibility, there are ups and downs on W.B.M. roads and bituminous roads WBM. Water bound macadam. Due to more stiffness and thickness, there are no ups and downs on concrete roads

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