Your Total Savings ₹4500 What are the different layers in flexible and rigid pavements?
Flexible pavements consist of surface, base, sub-base and subgrade course. The rigid pavements consist of surface, base and subgrade course.
Give the classification of urban roads
Urban roads are classified as expressways, arterial roads, sub-arterial roads, collector streets and local streets
Give the classification of hill roads.
According to BRO (Border Road Organisation), hilly roads are classified as national highways, class 9 roads (for 3-ton vehicles), class 5 roads (for 1-ton vehicles) and class 3 roads (for jeeps).
What are the different types of road patterns?
The patterns of roads are rectangular or block, star and block, star and grid, linear patterns, etc.
What are primary, secondary and tertiary roads?
Primary roads consist of expressways and national highways; secondary roads consist of state highways and major district roads, and tertiary roads consist of other district roads and village roads.