Optimization of a forest harvesting set based on the Queueing Theory: Case study from Karelia

The modern technological process of timber harvesting is a complex system both technically and organizationally. Nowadays, the study of such systems and improvement of their efficiency is impossible without the use of mathematical modeling methods. The paper presents the methodology for the optimiza...

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Bibliographic Details
Published in:Central European forestry journal 2015-12, Vol.61 (4), p.211-220
Main Authors: Shegelman, Ilya, Budnik, Pavel, Morozov, Evsey
Format: Article
Language:English
Subjects:
Adequacy
Complex systems
Efficiency
Forest harvesting
forwarder
harvester
Harvesters
harvesting set
Logging
Mathematical models
moddeling
Optimization
queueing theory
Queuing theory
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Summary:The modern technological process of timber harvesting is a complex system both technically and organizationally. Nowadays, the study of such systems and improvement of their efficiency is impossible without the use of mathematical modeling methods. The paper presents the methodology for the optimization of logging operations based on the queueing theory. We show the adapted queueing model, which characterizes the process of logging with the use of a harvesting set consisting of harvesters and forwarders. We also present the experimental verification of the designated model that confirmed mode’s adequacy. The analysis of the effectiveness of the investigated harvesting set was conducted and the recommendations for its optimization were drawn. The research was conducted in the Pryazhinsky District in the Republic of Karelia. We showed that significant improvement of operational efficiency of the investigated harvesting set in the study area cannot be done by adjusting separate machine operations (i.e. by reducing the time of operations execution and their steadiness). However, a change in the number of machines allowed significant improvement in the operational efficiency. The most optimal harvesting set design for the experimental area consisted of two harvesters and two forwarders.
ISSN:0323-1046
2454-034X
1338-4295
0323-1046
2454-0358
DOI:10.1515/forj-2015-0029