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Network Models for Fleet Management *
Author(s) -
Vemuganti R. R.,
Oblak M.,
Aggarwal A.
Publication year - 1989
Publication title -
decision sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.238
H-Index - 108
eISSN - 1540-5915
pISSN - 0011-7315
DOI - 10.1111/j.1540-5915.1989.tb01406.x
Subject(s) - fleet management , schedule , retrenchment , operations research , time horizon , computer science , flow network , commodity , operations management , business , economics , mathematical optimization , finance , telecommunications , engineering , mathematics , public administration , political science , operating system
This paper presents network models to determine the optimal replacement policy for a fleet of vehicles over a finite planning horizon. First, a minimum cost‐flow model is developed to determine the optimal replacement schedule for a fleet of fixed size consisting of a single type of vehicle of various ages. The model is then extended to allow for restrictions on capital expenditures that limit the purchase of new vehicles in any time period and to allow for fluctuations in the fleet size due to planned expansion or retrenchment. Finally, a multi‐commodity network model is developed for a fleet consisting of multiple vehicle types and ages.