5 Questions
What is the definition of highway drainage?
Highway drainage consists of removing or controlling surface water and subsurface water away from the road surface and the subgrade supporting it.
Why is road drainage necessary?
Road drainage is necessary because variation of the moisture content in the soil causes variation in the volume of sub-grade and leads to the failure of the road pavement, excess moisture content in soil sub-grade causes a substantial reduction in its stability, and stability of the soil sub-grade is crucial for road pavement.
What are the reasons for the necessity of road drainage?
The reasons for the necessity of road drainage include variation of the moisture content in the soil causing variation in the volume of sub-grade and leading to the failure of the road pavement, excess moisture content in soil sub-grade causing a substantial reduction in its stability, and stability of the soil sub-grade being crucial for road pavement.
What can happen if the stability of the soil sub-grade is not maintained?
If the stability of the soil sub-grade is not maintained, it can lead to the failure of the road pavement.
What is the impact of excess moisture content in the soil sub-grade?
Excess moisture content in the soil sub-grade causes a substantial reduction in its stability, which is crucial for road pavement.
Test your knowledge of highway engineering with this quiz on Unit 06 - Drainage, Maintenance, and Road Repair. Explore the definition, necessity, and methods of highway drainage, as well as maintenance and repair techniques. Perfect for students and professionals in civil engineering and transportation.
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