4. ESTIMATING ROAD CONSTRUCTION UNIT COSTS
The total unit cost of per cubic meter of rock spread on the road is Activity $/m 3 solid $/m 3 prism $/km: Develop pit: 0.10: 0.08: 74: Drill and blast: 2.42: 1.83: 1833: Crush: 2.90: 2.20: 2197: Load, transport, and spread: 4.03: 3.05: 3053: 9.45: 7.16: 7157: Equipment balancing plays an important role in obtaining the minimum cost per cubic ...