The costs (owning and operating) and specifications of several front-end loaders and off-highway, rear-dump, diesel trucks were used to analyze the loader-truck fleet optimization problem for projects with positive total road resistance. It was found that the cost of earthmoving can be reduced if the loader dump clearance at full lift is increased by operating the loader on a higher level than the trucks being loaded thereby allowing larger trucks to be used. The optimal truck capacity for a loader is about 5 to 7 times the capacity of the loader. However, if the dump clearance at full lift of the loader is not a restriction, trucks with capacities larger than 5 to 7 times the loader capacity become economical. This paper presents graphic solutions which provide a simple and fast method for selecting the optimal fleet combinations for projects with postive total road resistance.

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  • Accession Number: 00486409
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Aug 31 1989 12:00AM