Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2015
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O. Janne Kjønaas Nicholas Clark Toril Drabløs Eldhuset Ari Hietala Hugh Cross Kjersti Holt Hansen Tonje Økland Holger Lange Jørn-Frode Nordbakken Ingvald RøsbergAbstract
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The Cableway Location Problem (CLP) is a facility location problem usually studied as a part of a hierarchical approach for large cable yarding systems outside of Europe. Small adaptable cable yarding systems are used in Europe. This increases the number of possible landing sites and makes the layout problem hard to solve to optimality. Here, two approaches are presented that solve the novel European CLP (E-CLP). The methods are tested on several generated cases and one real world case. The lateral yarding distance is introduced in the cost calculations to improve the quality of the solutions.
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Nils Egil SøvdeAbstract
Cable yarding systems are commonly used in steep or difficult terrain and require suitable landing sites. This work describes two algorithms that calculate the suitability of roads and areas for landing site use. The algorithms were tested against real world data. The results show that simple algorithms are sufficient to make stable, useful estimates that are comparable with human site placements. These techniques can be used to guide forest road network planning or reuse of existing roads.