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Croatian Journal of Forest Engineering : Journal for Theory and Application of Forestry Engineering, Vol. 28 No. 2, 2007.

Original scientific paper

Forwarding productivity in Southern Austria

Mohammad Reza Ghaffarian
Karl Stampfer
John Sessions

Full text: english pdf 150 Kb

page 169-175

downloads: 1.559

cite

Abstract

Forwarders are common machines in the cut to length harvesting system. A general regression model for predicting the time of forwarding was developed using 82 working cycles of two kinds of machines in downhill timber extraction. Using stepwise regression, variables such as forwarding distance, slope, type of forwarder and piece volume were significantly entered to the model. Increasing forwarding distance increases the forwarding time. However, if piece volume and slope of the trail increase, the forwarding time decreases. The average forwarding production was estimated to about 17.9 m3/PSH0 (Productive System Hours) while mean load per trip was 10.04 m3 and average forwarding distance was 97 m.

Keywords

forwarder; productivity; cost; model; regression

Hrčak ID:

18251

URI

https://hrcak.srce.hr/18251

Publication date:

17.12.2007.

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