The first level of tree stability assessment complements the knowledge of classical dendrological survey (tree assessment) by analysing the tree stability in terms of its shape, dimensions and material properties of the wood, defined by tree species.
Using this approach as an addition to traditional tree survey, you can be sure that trees in your care are safe and can continue to benefit their environment. If the Adbian Dendrology tool identifies a tree as potentially problematic, a more detailed investigation leading to risk mitigation measures will be recommended.
The Adbian Dendrology level is optimally used in combination with a conventional tree survey. Thanks to a high degree of automation, an arborist is able to carry out this check on large populations of trees, optimally consisting of mature individuals with straight and regular stems., The calculation can also be performed retrospectively on the basis of data collected in the field.
The main output is the safety coefficient. This is a numerical expression, which determines whether a tree with specific dimensions is sufficiently compensated for given conditions and can grow safely on the location. Another output is a representation of the tree in 3D environment, where it is possible to study the tree in its growth context. Last but not least, the Adbian Dendrology level also provides a range of reports -from a volume analysis to determination of the amount of wood to be processedin case of felling, to an analysis of the environmental benefits of the tree(so-called eco-benefit analysis).
The three-dimensional model allows one to visualize the size and structure of the tree in its growth context. For more advanced levels, the 3D model includes detailed documentation of the tree stem condition at the time of the field survey, possibly enriched by the results of the analysis of internal structures obtained through device-supported tests.
The safety coefficient is a value expressed as a percentage that defines the ratio of the strength of the supporting structures(especially the trunk) in relation to the stresses generated in them as a result of horizontal loading by strong winds. A safety factor value of less than 100 % indicates that the tree is insufficiently compensated for the conditions and may pose potential risk of failure. Results of the calculation of the safety factor cannot be used on their own with out expert interpretation and the overall contexts evaluated by a qualifiedarborist.
In addition to the safety coefficient and the analytical 3D model, the collected data can be used for other valuable outputs. These include a volumetric analysis indicating the volume of biomass to be processed if the tree is felled, or a summary of the ecobenefits, i.e. the benefits of the tree to the environment. The range of reports is continuously expanding.
