Technological and Environmental Parameters of Helicopter Timber Extraction in Slovakia

This paper summarises the results of the research whose aim was to evaluate technical, technological, ergonometric and environmental parameters of timber air extraction. Ground based extraction technologies are localised to land routes where the possibilities of development are partially exhausted. Searching the way to eliminate the consequences of extraction technologies on the environment was carried out by use of three dimensional technologies. The aim of this work was to elaborate a design of technological procedures for timber transportation by helicopters depending on the type of felling, terrain configuration, technical aids, assessment of performance characteristics, design of work safety and assessment of noise level in the forest environment