Ratings of groups of factors for assortment hauling

Management of wood hauling from cutting areas is a significant process in logging. Logging truck movement and hauling parameters are influenced by a variety of natural and industrial conditions. Using the identification method a factor analysis of eight groups out of all 35 parameters was carried out for 162 experiments. In the course of the analysis the authors used three types of information: A - variable factors that change during the experiments (I - time of entry to the measured road section; II - reduced coordinates of all experimental sections; VI - meteorological data at the time of the measurements); B - relatively constant information (V - parameters of the road surface condition); C - constant information for the interval of experiments (III - parameters of the driver; IV - parameters of the sorting truck). By combining the clusters, additional groups were formed: VII - parameters of the climate geomorphology system (II + VI); VIII - parameters of the technical system (IV + V). Group II, i.e. the reduced coordinates of the site center, ranked first in both ratings (variables and indicators). The geomorphology of the forest transport network held the dominant place. Group VII, i.e. parameters of the climatic geomorphology system (II + VI), ranked second in both ratings. Group II, i.e. the reduced coordinates of the site center got the value of the correlation variation coefficient 0.7804 and ranked first. Group III, i.e. driver’s parameters, ranked second. In both ratings, this group ranked seventh, and within the third group, the driver's parameters received a maximum coefficient of correlative variation of 0.7128. Group II, i.e. coordinates of the site center for group VII - parameters of the climatic geomorphology system (II + VI) with a coefficient of correlative variation of 0.5549, ranked third.