A Model for Fleet Sizing and Vehicle Allocation

There are important interactions between decisions on sizing a vehicle fleet and decisions on utilizing that fleet. A model is formulated to optimize both sets of decisions simultaneously under dynamic and uncertain conditions. A network approximation to this model is presented and a solution proced...

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Bibliographic Details
Published inTransportation science Vol. 25; no. 1; pp. 19 - 45
Main Authors Beaujon, George J, Turnquist, Mark A
Format Journal Article
LanguageEnglish
Published Linthicum, MD INFORMS 01.02.1991
Transportation Science Section of the Operations Research Society of America
Institute for Operations Research and the Management Sciences
Subjects
Applied sciences
Approximation
Automobiles
Determinism
Dispatching
Exact sciences and technology
Ground, air and sea transportation, marine construction
Transportation demand
Travel time
Trucking
Vehicle fleets
Vehicle operation
Vehicles
Dimensioning
Vehicle
Number
Optimization
Vehicle dispatching problem
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Summary:There are important interactions between decisions on sizing a vehicle fleet and decisions on utilizing that fleet. A model is formulated to optimize both sets of decisions simultaneously under dynamic and uncertain conditions. A network approximation to this model is presented and a solution procedure proposed. The convergence behavior of the solution procedure and the potential consequences of using simpler models to solve the fleet sizing and vehicle allocation problem are illustrated using several hypothetical problems. We conclude that this model is useful in identifying good strategies for the sizing of vehicle fleets and for the allocation of empty vehicles.
ISSN:0041-1655
1526-5447
DOI:10.1287/trsc.25.1.19