Bus Fleet Management Optimization Using the Augmented Weighted Tchebycheff Method

2018 ◽  
pp. 201-213
Author(s):  
William Emiliano ◽  
Lino Costa ◽  
Maria do Sameiro Carvalho ◽  
José Telhada
Keyword(s):  
Fleet Management ◽  
Management Optimization

scholarly journals Joint stochastic short-term production scheduling and fleet management optimization for mining complexes

2020 ◽  
Vol 21 (4) ◽  
pp. 1717-1743
Author(s):  
Christian Both ◽  
Roussos Dimitrakopoulos
Keyword(s):  
Stochastic Optimization ◽  
Production Scheduling ◽  
Planning Horizon ◽  
Open Pit ◽  
Open Pit Mining ◽  
Fleet Management ◽  
Production Schedule ◽  
Short Term ◽  
Term Extraction ◽  
Management Optimization

Abstract This article presents a novel stochastic optimization model that simultaneously optimizes the short-term extraction sequence, shovel relocation, scheduling of a heterogeneous hauling fleet, and downstream allocation of extracted materials in open-pit mining complexes. The proposed stochastic optimization formulation considers geological uncertainty in addition to uncertainty related to equipment performances and truck cycle times. The method is applied at a real-world mining complex, stressing the benefits of optimizing the short-term production schedule and fleet management simultaneously. Compared to a conventional two-step approach, where the production schedule is optimized first before optimizing the allocation of the mining fleet, the costs generated by shovel movements are reduced by 56% and lost production due to shovel relocation is cut by 54%. Furthermore, the required number of trucks shows a more balanced profile, reducing total truck operational costs by 3.1% over an annual planning horizon, as well as the required haulage capacity in the most haulage-intense periods by 25%. A metaheuristic solution method is utilized to solve the large optimization problem in a reasonable timespan.

Logistic Management Optimization in the Ports

2015 ◽  
Vol 6 (11) ◽  
pp. 1908-1914
Author(s):  
Maria Jose González Sánchez ◽  
Buiza G. ◽  
Beltran J. ◽  
Stanley M. T. ◽  
Veloqui M. ◽  
...  
Keyword(s):  
Logistic Management ◽  
Management Optimization

Analytical Models for Fleet Management

2006 ◽  
Author(s):  
Felix Papier ◽  
Ulrich W. Thonemann
Keyword(s):  
Analytical Models ◽  
Fleet Management

Risk Management Optimization for Sovereign Debt Restructuring

2015 ◽  
Vol 6 (2) ◽  
Author(s):  
Andrea Consiglio ◽  
Stavros A. Zenios
Keyword(s):  
Risk Management ◽  
Scenario Analysis ◽  
Sovereign Debt ◽  
Risk Measure ◽  
Policy Tools ◽  
Debt Restructuring ◽  
Tail Risk ◽  
Debt Sustainability ◽  
Scenario Optimization ◽  
Management Optimization

AbstractDebt restructuring is one of the policy tools available for resolving sovereign debt crises and, while unorthodox, it is not uncommon. We propose a scenario analysis for debt sustainability and integrate it with scenario optimization for risk management in restructuring sovereign debt. The scenario dynamics of debt-to-GDP ratio are used to define a tail risk measure, termed

A new hybrid method for multi-objective fuel management optimization using parallel PSO-SA

2014 ◽  
Vol 76 ◽  
pp. 112-121 ◽  
Author(s):  
F. Khoshahval ◽  
A. Zolfaghari ◽  
H. Minuchehr ◽  
M.R. Abbasi
Keyword(s):  
Hybrid Method ◽  
Fuel Management ◽  
Multi Objective ◽  
Management Optimization
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