Geomatics and Environmental Engineering
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ISSN 1898-1135
e-ISSN: 2300-7095
Issue Date
2011
Volume
Vol. 5
Number
No. 4
Description
Journal Volume
Geomatics and Environmental Engineering
Vol. 5 (2011)
Projects
Pages
Articles
Spatial analysis of the effect of noise on the prices and value of residential real estates
(2011) Cellmer, Radosław
This paper presents the methodology and the results of spatial analyses investigating the impact of noise on the prices of residential real estate with the involvement of GIS tools. The impact of noise on real estate prices in the analyzed area was evaluated by analyses of variance and regression. A map indicating the strength of noise effects was generated with the use of the Geographically Weighted Regression (GWR) technique. Kriging and cokriging interpolation was used to generate a map of housing price distribution where noise intensity was input as an additional variable.
Free software applied in surveying computations
(2011) Hycner, Ryszard; Ruchel, Jan
This paper is of review kind. On the basis of internet sources, accessibility and possibilities of software to surveying computations with special attention to free software. It has also been presented analysis of possibility of such software, especially from the point of view accessible functions, useful for surveyor's environment. Application of analysed programmes depends on size and specialty of surveying enterprise. It is also essential a region where surveying enterprise is located. Yet, the most important factor influencing on universality of programme is its price. Non commercial programmes almost don't exist and these which are on the market have limited possibilities. Usually they are single product, being often results of students diploma projects. Usually they are not entirely free of charge, since they force using the other, commercial payable software or hardware of a definite firm. One can generally say, that there is lack of significant non commercial programme, serving for surveying computations in Poland, belonging to free and open software. Thus, one can assume, that good, friendly in use and possible versatile but comprises fundamental range of surveying computation programme, would win many users.
Analysis of coordinates time series obtained using the NAWGEO service of the ASG-EUPOS system
(2011) Kudrys, Jacek; Krzyżek, Robert
The NAWGEO service of the ASG-EUPOS system is practically the most often used by geodesists. The accuracies of determining coordinates using the NAWGEO service as declared on ASG-EUPOS internet pages are 3 cm horizontally and 5 cm vertically. In this work, on the basis of conducted measuring tests executed in optimal conditions, the authors verify the capabilities for determining point coordinates with a given accuracy depending on the method of measurement and the type of corrections used. The presented results confirm the capability for obtaining high accuracies of determined coordinates in case of optimal measuring conditions. In the case of unfavorable measuring conditions, the achieved accuracy (repeatability) of determining coordinates is significantly worse.
Accuracy in Fixing Ship’s Positions by CCD Camera Survey of Horizontal Angles
(2011) Naus, Krzysztof Andrzej
The article describes a study to assess the accuracy determining the position coordinates of the ship based on measurements horizontal angle made optical CCD (Charge Coupled Device) camera. In the first part of paper describes the method of calculating the measurement mean errors and the field figure mean errors of position coordinates delineated from two or more horizontal angles. There have been defined three software applications assigned for preparation of navigational sea charts with accuracy areas mapped on (map distributions of accuracy). The second part presents, in the form of maps distributions of accuracy, results of the study's Rolleiflex camera. This study was conducted in based on the theoretical measurements, carried out the geometric structure formed by the constant measurement, optical navigational marks located on the Gulf of Gdańsk. In the final part, based on the results of research conducted discussion on evaluating the suitability of CCD cameras to determine the ship's position coordinates with the International Maritime Organization.
Modelling of urban estates' values
(2011) Parzych, Piotr
The urban estates are particular components of ground property. The urban estates are characterized by the ground components of great complication. Urbanized estates may be of following type: urban grounds, commercial premises, office buildings, welfare buildings, industrial buildings, warehouse buildings and small buildings of some type. Transactions including urban estates are not very common at the real estates' market. However, if a transaction takes place, all components of the estate have an influence on the transaction price. The application of such transaction prices for the valuation of similar estates is very complicated, for estates' components structure is highly differentiated and it is not possible to establish estates' representative reference unit. The algorithm enabling the sold industrial estates unit element's and transaction prices comparative analysis with elements of valuated urban estates will be presented in this paper. This algorithm is based on statistical modelling. Its result is the urban estates' market value estimation.