4.1. Description of Haul Route

Try these first

1. 1.

   What does a haul route refer to?

   Hint

   Think about the journey of the equipment.

2. 2.

   Define rolling resistance.

   Hint

   Consider what makes moving vehicles harder on a surface.

3. 3.

   What is the effect of rolling resistance on scraper performance?

   • It decreases performance
   • It has no effect
   • It increases performance

   Hint

   Think about how friction affects movement.

4. 4.

   True or False: Haul routes should be segmented based on their gradient.

   • True
   • False

   Hint

   Consider the importance of understanding different route challenges.

5. 5.

   A construction site requires moving 1000 bank cubic meters of earth. Given that the swell factor is 0.8, and the maximum safe weight of the scraper is 34 tons, calculate how many trips the scraper needs to make assuming each trip can carry a maximum payload of 30 tons.

   Hint

   Remember to consider both the conversion of volume and weight when calculating trips.

6. 6.

   If a haul route has a gradient of 5%, calculate the required resistance in kg per ton and translate this resistance into a total operational cost estimate based on given machinery rates.

   Hint

   Apply the principles regarding gradients and convert them into the financial aspect of operational costs.