17.2.2. Traffic Loading

Try these first

1. 1.

   Define axle load intensity in the context of pavement design.

   Hint

   Think about what the axle does to the pavement.

2. 2.

   What is meant by the repetition of loads?

   Hint

   Consider how often vehicles drive over a road.

3. 3.

   What is axle load intensity?

   • The weight of the vehicle
   • The weight per axle
   • The total weight of the vehicle divided by the number of axles

   Hint

   Focus on individual axles, not the entire vehicle.

4. 4.

   True or False: Increased repetition of loads can lead to increased pavement deterioration.

   • True
   • False

   Hint

   Think about wear and tear over time.

5. 5.

   Given a hypothetical situation where a newly constructed interstate highway is experiencing excessive cracking due to frequent heavy truck traffic. Discuss design changes that would improve the pavement performance.

   Hint

   Consider both structural and material improvements.

6. 6.

   Calculate the required thickness for a concrete pavement section expected to bear a daily traffic load comprising 200 heavy trucks with each truck weighing approximately 30 tons. Assume a standard pavement design guideline suggests a depth of 150 mm per 100 tons.

   Hint

   Use the given standard to guide your calculations.