A methodology to solve large-scale group fleet replacement problems Somboonwiwat, Tuanjai
ISBN: 0493252045
Summary:
This research addresses the large-scale group fleet replacement
problem with multiple vehicle types of multiple units, under budget
and demand constraints. Past research in group fleet replacement is
limited and has focused on one vehicle type, with multiples units and
constraints. Many studies in fleet replacement have also dealt with
single replacement, with single units, and with no constraints. The
objective of this research is to find the methodology to solve the
general large-scale group fleet replacement problem.
A multi-phase methodology based on the grouping concept is presented
and is integrated with optimization techniques. The vehicles are
grouped according to various technology parameters. A two-level
hierarchical replacement process, focusing on inter-group, and
intra-group analysis, is developed and the resulting models are
solved using integer programming. Finally, a case study using the
Oregon Department of Transportation records is examined.
The replacement model presented can incorporate complex variations in
the large-scale group fleet replacement problem. It is flexible and
can be used in wide variety of replacement problems. Used
appropriately, the results from this methodology can result in
reduced fleet replacement costs and operation costs.
Notes:
Advisers: Sabah U. Randhawa; Thomas M. West.
Thesis (Ph.D.)--Oregon State University, 2001.
Electronic reproduction.Ann Arbor, MI: ProQuest Information and
Learning Company,2003.System requirements: Adobe Acrobat
Reader.Available via World Wide Web.Digital version of: A methodology
to solve large-scale group fleet replacement problems.
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