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Construction equipment is a very important factor for successful construction. Also, the cost for construction equipment is a major part of the cost of construction. Therefore, the estimation of the equipment cost is a critical task in construction planning. A formula for production rates shown in `Standard Unit Labor` has been used to estimate construction equipment capability and cost. Although the performance of the equipment has improved over time, the variables in the formula have not been updated in a timely manner. Therefore, this paper has analyzed the preceding research, and performed several site visits to measure the cycle time of a backhoe and a loader. Construction equipment production rates were calculated with collected cycle times and variables given in `Standard Unit Labor`. In addition,production rates were estimated considering the circumstances of various sites with the simulation program `crystal ball.`

Estimation of Construction Equipment Production Rates based on Simulation;Cycle time of backhoe & loader