This is a curve representing cumulative volume of earthwork at any point on curve, the manner which earth to be removed.

It is necessary to plan movement of excavated soil of work site from cuts to fill so that haul distance be minimum to reduce the cost of earthwork.

The mass haul diagram helps to determine the economy in better way.

Mass diagrams determine the average haul, free haul, and overhaul on a given segment of roadway.

Mass diagrams tell the contractors and inspectors the quantity of material moverd and how far it can be economically moved.