4. Haul Route and Resistance

Try these first

1. 1.

   Define a haul route.

   Hint

   Think about the path taken by machines.

2. 2.

   What is rolling resistance?

   Hint

   Consider what slows down vehicles on a surface.

3. 3.

   What is the primary purpose of a haul route?

   • To minimize travel time
   • To facilitate material transport
   • To locate equipment

   Hint

   Think about the general activity of transporting materials.

4. 4.

   True or False: Grade resistance increases with increased incline.

   • True
   • False

   Hint

   Recall the relationship between slope and resistance.

5. 5.

   Calculate the total resistance for a complex haul route that includes a combination of +5%, +3%, and -3% grades over specified distances. Provide a detailed breakdown by segments.

   Hint

   Break it down segment by segment.

6. 6.

   Analyze how increasing the swell factor impacts the maximum allowed load for a scraper. Discuss the implications on cycle time and operational efficiency.

   Hint

   Relate back to previous examples in class.