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Civil aircraft navigation uses specific procedures for the continuous determination of the aircraft position using the path and distance traveled in the considered time interval as calculation elements. Throughout the route, errors must be estimated that are generated by a series of parameters such as: hydrometeorological conditions, air current direction, declination, geoid parameters, the ship's nautical qualities and the response mode of the navigation equipment. The indications of the magnetic compass must be ...

The aim of the article is to present selected experience with updating the digital technical map (DTM) dataset in the Czech Republic after 2 years of its widespread introduction into operation. The subject of the analyses was the methods of initial filling of the basic spatial situation (ZPS) data with new mapping of land roads and defined territories of technical infrastructure administrators. When updating the ZPS, accuracy problems of vectorization from LIDAR mobile mapping data and problems of the results of p...

The aim of the article is to present modern geodetic methods used for surveying sacral buildings. These are terrestrial surveying, photogrammetry and drone images. When surveying the building, the digital sketch method was used, which, in addition to the geometry, also captures the topology of the resulting drawing of the surveyed object. The benefit of this method is the automated drawing of a wireframe model of the building in a CAD application. The platform used is QGIS with Python language support. The advanta...

In the era of advancing digitization, the application of Building Information Modeling (BIM) technology in the construction industry is increasingly evident at advanced level. However, the use of BIM tools during the operational phase of buildings-beyond traditional design and construction-remains a niche area, with integrated digital facility management practices still limited in adoption. In this article, the authors focus on presenting an example of pilot project of implementation of the digital Common Data Env...

This paper presents the monitoring of an eroding phenomenon (gully) near Ciurila, Cluj County, Romania, using UAV (Unmanned Aerial Vehicle) and GNSS (Global Navigation Satellite System) technologies. In this sense, the monitoring results through sustainable and non-invasive technologies are presented, following four cycles of observations, carried out between June 2019 and April 2021. The paper aims to present the advantages and limitations of such a study, as well as the importance of monitoring erosion phenomena...

In this study, we aim to demonstrate the change in the topography of the sea floor as a result of the sedimentation of rivers. The study area is the Divjaka Bay, bounded to the north by the delta of the Shkumbin River and to the south by the delta of the Seman River, on the Adriatic coast of Albania. The method used is the Integrated Satellite Bathymetric Surveying method. The monitoring period extends from 2017 to 2020, based on 4 monitoring campaigns. The longitudinal bathymetric profile extends northsouth, in p...

The field of construction is currently one of the most stable and active fields of activity. It presents complex activities that are done in phase and chronologically until the end of completion execution stage. Realization of the foundation or its characteristic elements it includes a number of preparatory activities such as: land preparation and release of various tasks, shoveling and ground consolidation. The type of consolidation it is chosen according to the depth of the escape and It is about choosing a supp...

The new network of permanent GNSS (Global Navigation Satellite System) stations should be established by the end of this year. At the moment, 18 permanent stations are already established. All stations coordinates must be determined following the conditions dictated by the Republic Geodetic Authority of Serbia, i.e., the Rule Book for establishing the GNSS permanent stations network. The coordinates of stations, the final solution, must be calculated from three consecutive uninterrupted daily sessions as a combine...

In 2004, a digital terrain model (DTM) was created in Serbia. It was obtained by vectorizing isohypses on topographic maps with a scale of 1: 25000. The resolution of the digital model of Serbia is 30 m, and the vertical accuracy, as the authors claim, is 10 m. From December 2021, the global model FABDEM (Forest And Buildings removed Copernicus DEM) is available to the public. It was created based on the data of the Copernicus GLO30 model so that data on forests and buildings were removed from it. Important featur...

The structural analysis of the civil infrastructure is vital in order to track the evolution of degradation in time, to prevent disasters, but also to document and conserve the sites of cultural heritage. This paper review-s the workflow on the acquisition of point clouds to Terrestrial Laser Scanner (TLS) with those collected by photogrammetric 3D models based on images captured by an unmanned aerial vehicle (UAV), analyzing the data sets on two diferent type of bridges located in western Romania. The obtained da...

GNSS technology evolves at a fast pace and, along with it, the number of applications that are based on this technology increases. An important part of the applicability of GNSS technology is in the field of geodesy. In this article we propose to present a GNSS system that is built starting from the U-blox ZED-F9P receiver, integrated on a development board produced by SparkFun that is connected to the Raspberry Pi 4 Model B single-board computer. The Raspberry Pi computer and the development board made by SparkFu...

The data obtained from the monitoring of the dam’s behavior, allow to make the decisions to start the current maintenance works at the best moments of time. They also make it possible to know from early stages possible atypical behavioral phenomena and to take measures accordingly before such phenomena become dangerous for the safety of the construction. One of the ways to monitor constructions is to perform geodetic measurements at different stages and to compare the coordinates obtained in a coordinate reference...

The constructive solutions proposed for the realization of constructions must take into account the existing situation on site and the way of manifesting of as many factors that can influence the functionality of the building as possible. When functional deficiencies occur during the construction operation, they must be located immediately, the causal factors must be identified sooner rather than later and measures must be taken to eliminate their effects. The activity of building monitoring is aimed at monitoring...

Through this work we have created two geodesic support networks of the V order in the peat area of Poiana Stampei commune, supporting the subsequent topographic elevations of both the railway and its auxiliary elements, as well as the adjacent areas, be they forest boundaries, fences, etc. .a .. After materializing and making observations, it is necessary to compensate the networks to obtain the final coordinates of the points that will serve the subsequent topographic surveys and the topographic plans. In order t...

The precise point positioning (PPP) method is a relatively young method of GNSS observations processing but it is already quite widespread in many cases. However, the processing of observations with this method using specialized software requires some experience and competencies. The advent of web services for processing the results of observations using the PPP method significantly simplified this task. This circumstance is especially important for workers in the cadastral sphere, and makes it possible to simplif...

During a mine exploitation, the activity of the mine shafts must be carried out under outstanding safety conditions, given that through them we carry out the transport of personnel and materials necessary for the production process and we extract mineral substances. For these reasons, the operating parameters must be within the limits provided by specific regulations, both in the case of supporting and guiding elements of the shaft, as well as those of the extraction plant. The labor protection regulations provide...

The paper focuses on the experimental determination of the accuracy of automatic angular targeting of total stations. The measurements were carried out with Trimble S6 HP and Trimble S8 HP robotic total stations owned by the Department of Special Geodesy at the Faculty of Civil Engineering, CTU in Prague. Accuracy of targeting was determined with use of both laboratory and outdoor experimental geodetic networks. The laboratory micronetworks were two. One was made up of 10 points with a length of sight from 1.8 m t...

Currently, there are a number of works focusing on the study of the geodynamic situation near the large reservoirs. These studies cover many areas of research from geodynamic models of the Earth's crust and geodynamic activity of water reservoirs (e.g. lakes) to dynamics of the Earth's rotation and oil deposits. This paper presents a new method of analyzing the geodynamic situation near the large reservoirs. As an example, the geophysical conditions near Kuybyshev are determined using the method and data on latitu...

Nowadays, according to the current century, the one of speed and information, the way of calculating the volumes of aggregates is desired to be much faster and more accurate in every aspect. The volume designates the property of a body to have three-dimensionality, that is development along three perpendicular axes on which the length, width and height are measured. All three those dimensions are actually length values that define the place which that object occupies in space. The theme of the project is to calcul...

The objective studied is a collective dwelling with the height regime of S + P + 3E and offices located on Str. Borhanci, Cluj County. From a geometric point of view, topographic surveying works ensure the application of various types of constructions, ways of communication, art works, hydrotechnical works on the ground. In our case, the execution of the tracing works was accomplished by moving from the upper to the lower order, from the geodetic state to the tracing base. An essential factor was the choice of the...

The documents of the general cadastre may result from the centralized and selective take over of the data and all the cadastral records from the specialized cadastre, regarding the immovable assets that are their object of activity. These selectively taken elements use to update the general cadastre after the end of its introduction into an administrative territory. One of the main steps for completing the general cadastre is the realization of the real estate cadastre. This article presents the way in which the d...

This year marks the 21th anniversary of the completion of the tallest building in Romania, the 351.5 m smoke chimney in Baia Mare. The Surveying-Geodesy team of the North University of Baia Mare, at present a structure belonging to the Faculty of Civil Engineering of the Technical University of Cluj Napoca, monitored the verticality of the structure, immediately after completion, and then periodically, with a frequency of 1-2 years. This paper presents an analysis of the evolution of the vertical axis of the struc...

This article outlines the steps to be taken to ensure that the old Land Book Plans can work together with the current Land Plans and the Orthophoto Plans. For this purpose, scanning steps, georeferencing, must be performed. Then compare the old plans with the current ones by overlapping them over orthophoto maps. Following this stage, we can find out if there are differences between the older and the current plans or the current situation in the field. By overlapping, in the same reference system, we can very easi...

Experience has shown that all buildings and constructions are subject to displacements and deformations. There are no absolutely stationary and non-deformable constructions. Deformations are also caused by variable loads acting on the construction. For example, loads caused by wind, solar radiation, vibrations from machines during operation, seismic stress and others. The area in which the tallest building in Romania, i.e. the 351.5 m smoke chimney in Baia-Mare, is located has a very low seismic activity. In these...

Sintioana, the component of the Sinmartin commune, Cluj County, it was necessary to execute operations at legal, economical and technical level. This operation was done successively on cadastral sectors. The present paper deals with the study of the technical operations necessary for the introduction of the real estate cadastre, as well as the achievement of the site and delimitation plans for each building in part, from four cadastral sectors of within the built-up area of Sintioana. In order to take over the tec...

This article deals with the spatial position of tracks surveying using a measuring truck and automatic total station. At the beginning of work it was necessary to gain theoretical knowledge on geodetic activities carried out in the process of reconstruction works on the track surface, and to define the concept of the geometric position of the track. Collecting necessary design documentation is an essential part of the whole measuring process. Adherence to the specified accuracies and deviations in the Slovak Techn...

The G.I.S. It is used to create, store, analyze and process information spatially distributed through a computerized process. GIS technology can be used in various scientific and practical. G.I.S technology is increasingly used in the field of cadastre. To use technology G.I.S. in cadastre we must have both graphical database and the type attribute must be focused on cadastre requirements. Items graphic database is collected by conventional measurements, measurements GPS, photogrammetric measurements, through digi...

An effective development of underground space is impossible without the use of modern systems of underground navigation. And the high-precision inclinometric survey is one of the main problems of such systems, as well as the complicated systems of drilling rigs, which are usually used in the construction of oil and gas wells. As a result of research described in the paper the authors scientifically prove a necessity of new special indices of geomagnetic activity introduction. Also the algorithm of their calculatio...

An engineering survey to determine the existing height of constructions is a frequent requirement that the land surveyors are faced with. A height survey may be needed to verify building elevation while in construction, or according to the legislation, in order to apply for a building permit a detailed topographic plan must be conducted. Such a topographic plan must be prepared by licensed surveyor and include the measurements of nearby properties, adjacent with the land parcel on which the building authorization ...

In this paper, a method of calibration of the levelling rod Carl Zeiss Jena No. 55822 was proposed. Within a method procedures we follow the requirement of the International Standard ISO / IEC 17025: 2005 and all necessary observations were performed in the Metrological Laboratory of Institute of Geodesy and Geoinformatics, Faculty of Civil Engineering, University of Belgrade. In the process of the calibration, we used a laser interferometer Hewlett Packard HP 5528 and specially adapted auxiliary equipment for pla...

The paper talks about the development of the geodetic networks using measurements of direction from the fixed points (with their coordinates known) towards the variable points (determined points). It starts from a situation that is given seven geodetic points whose coordinates are known, and an unknown point must be framed in such a network. After observation directions are carried out in three of the seven known points must be determined the coordinates of the unknown point. In order to reduce the large number of...

This paper sheet on пїЅDecoding GPS data for single point positioning computation by using Python programming languageпїЅ shown the program to compute receiver coordinates with use RINEX navigation and data files. In the program it is used single point positioning method to compute coordinates, and the program is coded in Python programming language. Sheet includes a part of the source code and block schemes, which described operation of the program. The comparison of the results of the approximate coordinates sho...

In this paper we focus on the evaluation of land use changes in the cadastral areas of the cities Martin and VrпїЅtky. Both cities are situated in the Tur?ianska kotlina Basin between the MalпїЅ Fatra Mts. and Ve?kпїЅ Fatra Mts. in the northern part of central Slovakia. Establishment of new industrial enterprises in the second half of the 20th century led to the creation of new infrastructure, urbanization and the subsequent interconnection of both cities. Railway transport and the пїЅOS VrпїЅtky company (Railway ...

When conducting underground works, it is necessary to take into account their possible consequences for underground and surface objects. The purpose of this work was to identify the need to use three basic methods for estimating and predicting the parameters of subsidence of the earth's surface and deep layers. The process of extracting minerals from the earth's interior leads to an increasing need for underground excavations beneath the area of protected objects (surface and underground). In this regard, engineer...

Optimization of the measurements is an important theme nowadays of the geodesy and especially engineering geodesy. The optimization can be categorized into orders, from the zero to the third order. The zero order design is the coordinate system selection, the first order is the configuration optimization, the second order is the optimization of the number of the repetitions, the third order is the improvement of the existing network by adding point and/or observations. In the engineering surveying the second order...

In the process of geoid determination one of the most important problems is to determine the effect of topographic masses. Traditionally, solving that particular problem started with the reduction of gravity on the geoid and subsequent calculations the effects of the reduction on the value of the geoid undulations i.e. calculating the indirect effect of reduction. In this paper a model of the indirect effect of Helmert method of condensation over the territory of Serbia was shown. The model was created on the in 5...

Social housing management is an area of asset management within local government which is strongly dependent on legal and socio-economic system as well as public housing policy. In many countries housing systems are in transition towards privatization, deregulation and decentralization of public tasks. The transformations in institutional and economic context have lead to more market-oriented social housing management. They have not been an isolated process but a part of broader one termed New Public Management (N...

The paper presents a MEMS-INS/GPS data fusion algorithm based on an adaptive neuro fuzzy inference system for the prediction of the navigation solution errors during GPS outages. The study was performed during the second stage of a research project related to the structural design of a data fusion intelligent algorithm based on an adaptive neuro-fuzzy inference system and Kalman filtering, for the prediction of the positioning errors during GPS signal outages. In this stage, the project research team targeted to r...

The results of research studies from deformation investigation of geotectonic recent movements in east Slovakia are presented. Satellite measurements were implemented in the geodetic network in the Kosice Basin. Transformation of the geodetic points coordinates from WGS-84 into the Slovak national positional coordinate and height system was carried out using Helmert seven-element transformation. The aim of the deformation measurements was determining geotectonic recent movements especially in the urban agglomerati...

Related to geodetic systems to take decisions in such a complex environment is not at all an easy task. To handle such a complex interdisciplinary approach several methods have been developed, using knowledge from different disciplines by considering several aspects and criteria. These can be very different one from another, some of them being of qualitative type, indeed hardly quantifiable. In this situation the question is which instruments could be used in order to support such a Multi-Criteria Decision Analysi...

Establishing absolute geographical location in underground spaces such as mining exploitations, caves, deep crevasses, or in deep open pits is a technically difficult problem. Modern techniques used for general outdoor environments cannot be used in subterranean environments. The performant Global Navigation Satellite Systems (GNSS), such as GPS, GLONASS, GALILEO, BEIDOU are not available in underground spaces, due to the impossibility of propagation through soil and rock of radio waves at frequencies and transmit...

At the moment in Romania there are a total of more than 7000 individuals and legal entities authorized by ANCPI (National Agency for Cadastre and Land Registration) for geodetic, photogrammetric, cartographic, cadastre and land registration works [4]. According to ANCPI standards there are regulated minimum technical conditions necessary for authorization including types and performances for geodetic and topographic equipments. At the national level the State Legal Office of Legal Metrology (BRML), which is in cha...

Large rotary drum machines are often used in technological lines for continuous production. These are complex structures which during operation are exposed to stresses and deformations under the influence of temperature and stress. To determine the geometric parameters of such units in this paper we propose to use a total station. The basic idea of the method is remote real-time geodetic measurement of the machine parameters in the reflectorless mode. The task posed is solved by simultaneous measuring of the point...

VRAGEO Project - Integrated Seismic Hazard Information Platform for Vrancea Zone Surveillance Through Advanced Geospatial and In-Situ Methodologies пїЅ have as main objective to enable free and open access to seismic hazard information in Romania due to Vrancea source in support of GMES (Global Monitoring of Environment and Security) through the development of an operational framework, a set of supporting tools and advanced geospatial surveillance methodologies of Vrancea tectonic active region. Information derive...

The nature of the soilпїЅs foundation bears a major influence on the time behavior of a building. Geotechnical studies are chosen based on the appropriate constructive methods for the terrain situation. There are however, cases where, even if the constructive solutions are adopted accordingly with the conclusions of prior studies, due to an inadequate approach in the achieving process of these studies, there are deformations that occur in the structure of the constructions, that affect their exploitation process o...

Global Navigation Satellite System (GNSS) receivers are currently the standard equipment for precision positioning, navigation and timing, but their use in difficult environments, such as open mining pits, deep quarries, roads in canyons, is hindered by multipath propagation conditions or interference from adjacent equipment. In this paper, the improvements in signal tracking brought by use of vector tracking loops in GNSS receivers are analyzed. The effects of multipath conditions on tracking errors are diminishe...

Analytical model of the stress-deformed state of the rock mass in production mining is proposed. In comparison with conventional ones, the model takes into account the depth of coal extraction, thickness seam and the existence of the total zone of mining subsidence displacement. As is shown by calculations, effect of said factors results in complete reconsideration of the stress-strain state pattern of the rock mass and may serve as the basis for the development of mining subsidence displacement theory.

Rockfalls are natural process of cliff and hillside erosion, can be simulated by the computer programs. They consist of large rock fragments from a cliff, or boulders from a slope that bounce, roll, and slide down a hillside and come to rest in a “runout” zone at or near its base. Rockfalls are a major hazard in rock cuts for highways and railways, and in mountainous terrain. Rockfalls are generally initiated by some climatic or biological event that causes a change in the forces acting on a rock. These events...

Based on experimental data analysis and obtained by the author novel solutions on distribution of stress fields and deformations in rock mass enclosing mine workings it is shown that in the course of deformation rock mass undergoes successively discrete series of states that correspond to a definite ratio of physical-mechanical properties of rock mass and rock pressure level. It is determine that when an outline of mine working is deformed by 12-18\%, the latter bifurcates (looses its stability) that corresponds t...

The paper presents definitions of nature risks and disasters. The mapping of the risk processes is discussed in the direction of educational purposes. International organizations publish information brochures about how to teach children correct behavior and preparation for natural disasters. Questions as “What do you do in case of an emergency” are discussed. Standards and technologies related to emergency management are considered. Some examples of maps and methods of mapping for young and older students are ...