Date of Award


Degree Type

Master's Essay - Restricted

Degree Name

Master of Science (MS)


Civil, Construction, and Environmental Engineering

First Advisor

Saeed Karshenas

Second Advisor

William G. Murphy

Third Advisor

Richard P. Guenthner


A graphical procedure is presented as a practical and fast solution for determining the optimal earthmoving system formed by a combination of one front-end loader and a number of trucks. The optimal combination is the one which minimizes the cost of production. Off-highway, diesel powered, and rear dump trucks are considered in this study. The size of trucks ranges between 20 and 120 cubic yards. The loader type considered is front-end wheel loader with a range of bucket sizes from 1 to 6 cubic yards. For calculating system production, queuing theory was used. the equipment costs used in this study were obtained from "Cost Reference Construction Equipment".