12.2.4. Drainage

Try these first

1. 1.

   What is meant by an impermeable pavement?

   Hint

   Think about the characteristics of materials used in pavements.

2. 2.

   Why is drainage important for pavement longevity?

   Hint

   Consider what happens to materials when they get wet.

3. 3.

   What is the main purpose of drainage in pavement design?

   • To allow water retention
   • To prevent water seepage
   • To enhance surface texture

   Hint

   Think about preventing moisture damage.

4. 4.

   True or False: A smooth pavement surface is ideal for water drainage.

   • True
   • False

   Hint

   Consider how water behaves on flat surfaces.

5. 5.

   Given a road design that frequently experiences water pooling, what specific changes would you recommend for better drainage?

   Hint

   Consider both slope and surface characteristics.

6. 6.

   Assess the long-term effects on maintenance costs if a pavement surface is not designed to be impermeable.

   Hint

   Think about the direct impacts of water on materials.