The basic purpose of this study was to determine a working-day structure and work productivity rate during the process of timber harvesting in mountain conditions. The parameters were determined on the ground of data collected during field studies. The aforesaid working-day structure was defined on the ground of time study observations. The areas included in the survey were typically mountain stands, in which cutting was applied by means of a cutting method IVd. Work teams assigned approximately 50-70% of their work-shift time to technological operations, whose greatest part was taken by delimbing and slashing. A significant portion of the day was taken by preparation of a workstand (approx. 10%), as well as cutting and felling. This was caused primarily by the necessity of snow coat removal. Technological work productivity rates amounted to some 3 to 14 m3 per day per one worker. During the skidding process, a significant percentage of trees remaining along the skidding path was being injured. On the ground of the obtained results and their analyses, an attempt was made to evaluate and suggest possible changes in timber harvesting organization, in order to improve work productivity rates.
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