Moving earth is one of the most expensive construction activities in a land development project. For this reason, there are two important questions that you will need to answer about nearly every grading design that you do.
As a designer or engineer, one of your most important tasks is to answer these questions with the smallest values possible. The less soil that is required to be moved for a project, the more money you have saved the client and/or owner. Transporting soil to or from the site is also a very costly construction activity and therefore one that you should also minimize.