Using terrain laser scanning for determining real estate physical deterioration

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Using terrain laser scanning for determining real estate physical deterioration

Journal Title: Геодезія, картографія і аерофотознімання - Year 2017, Vol 85, Issue 1

Abstract

The purpose of the study. The problem of applying terrain laser scanning method (TLS) is current, when it is used to determine real estate and construction physical deterioration of industrial areas and cultural heritage objects. The quality of laser scanning gives the possibility to develop intensively application of TLS for determining building deformation and engineering structures and physical deterioration of their structural components, inside and outside the object. Today the necessity to apply new modern methods has appeared in order to make an objective valuation and thus, to set its market value. Methodology. The methodology is based on the necessity of applying the terrain laser scanning method for determining real estate physical deterioration. While assessing valuating the real estate the main criteria is its physical deterioration for determining building and structure value which is considered as its validity loss and as a result its value loss for any reason [Kharryson H., 1994; Ekkert K., 1997]. The main factors that effect the accuracy and quality of laser scanning are considered to be the accuracy of the device (calibration); scanning conditions (weather conditions); scanning object properties (reflectivity); scanning geometry; previous processing of scanned material (Schultz R., 2010). The results. The importance of terrain laser scanning for calculation of building and structure physical deterioration has been learnt during application. The result has been the basis for the development of a new methodology of real estate valuation. Today the value of building component physical deterioration is determined by visual observation with the help of the simplest devices (plumb, linear, hammer, etc.). The value of physical depreciation of separate structures, and their technical equipment or their parts is determined by comparing of the existing features of physical deterioration with those which have been found during the observation [Kirichek Yu., 2016]. TLS application gives the possibility to set accurately structural parts of the damaged real estate. Scientific innovation. The research has been done based on the possibility of using digital laser scanning for determining the real estate physical deterioration. The necessity of using terrain scanning method in order to improve the methodology of real estate’s valuation and determination its physical depreciation has been stated in the article. This method gives the possibility to avoid appraiser’s subjectivity while calculating, and in accordance with “legal weak-points” of the got results of real estate market value. It has been defined that regulatory methodological documents of real estate physical deterioration are out of date and do not coincide with the real estate market requirements. That is why they need to be improved. Its practical significance. Using TLS for real estate valuation is of a great economic efficiency. It reduces the cost for determining the geometric object characteristics tenfold compared to traditional geodetic methods. Appraisers are recommended in their work to use pulse and phase laser scanners for determining real estate physical deterioration. Terrain laser scanning gives the possibility to get detailed structure of the real estate.

Authors and Affiliations

Yu. Hubar

Keywords

EP ID EP483679
DOI 10.23939/istcgcap2017.01.104
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