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Vilnius, Lithuania

Vilniaus Gedimino technikos universitetas , also known as VGTU, is a public university in Vilnius, Lithuania. Founded on 1 September 1956, the university was first a Vilnius-based evening division of the Kaunas Polytechnic Institute. It currently has 10 faculties, 14 research institutes, 33 research laboratories, and 2 research and 4 training centers. According to the QS World University Rankings, VGTU is in the top 4 percent of world universities. QS has given VGTU five stars in teaching, facilities, and innovation. Measuring student mobility in the ERASMUS exchange program, VGTU is the most popular university in Lithuania for foreign students. Wikipedia.


Ratkeviciute K.,Vilnius Gediminas Technical University
Baltic Journal of Road and Bridge Engineering | Year: 2010

This article gives the summary of the author's PhD Thesis supervised by Prof Dr Donatas Čygas and defended on 16 December 2009 at the Vilnius Gediminas Technical University. The thesis is written in Lithuanian and is available from the author upon request. Chapter 1 gives the main data on the road network of national significance of Lithuania, the change in the level of vehicle ownership, the basic accident indices and the essential factors influencing road safety. Chapter 2 gives a review of research methods used, review and evaluation of methodologies for the substantiation of road safety measures in Lithuania, Finland, Belarus, Poland and Sweden. Chapter 3 gives the evaluation of the effect of road safety measures implemented on the roads of Lithuania in 1999-2002. Chapter 4 describes the improved model for the substantiation of road safety measures under Lithuanian conditions. Chapter 5 presents the use of mathematical models for the forecasting of road accidents on the main roads of the Republic of Lithuania.


Ginevicius R.,Vilnius Gediminas Technical University
International Journal of Information Technology and Decision Making | Year: 2011

The accuracy of the results obtained by using multicriteria evaluation methods largely depends on the determination of the criteria weights. The accuracy of expert evaluation decreases with the increase of the number of criteria. The application of the analytic hierarchy process, based on pairwise comparison of the criteria, or similar methods, may help to solve this problem. However, if the number of the pairs of criteria is large, the same problems, associated with the accuracy of evaluation, arise. In the present paper, a new method of determining the criteria weights, FARE (Factor Relationship), based on the relationships between all the criteria describing the phenomenon considered, is offered. It means that, at the first stage, a minimal amount of the initial data about the relationships between a part of the set of criteria, as well as their strength and direction, is elicited from experts. Then, based on the conditions of functioning and the specific features of the complete set of criteria, the relations between other criteria of the set and their direction are determined analytically in compliance with those established at the first stage. When the total impact of each particular criterion on other criteria of the set or its total dependence on other criteria of a particular set is known, the criteria weights can be determined. © 2011 World Scientific Publishing Company.


Zavadskas E.K.,Vilnius Gediminas Technical University
Automation in Construction | Year: 2010

An overview of the results of the 25th anniversary International Symposium on Automation and Robotics in Construction (ISARC-2008), held for first time in Lithuania, is presented in this article. Also, for the first time, the Symposium was organized in joint with the International Council for Research and Innovation in Building and Construction (CIB). This article is a survey of the plenary session presentations. Further it surveys the articles in the now-published Special Issue based on the proceedings papers from ISARC-2008 as well as the ones published in different scientific journals. © 2009 Elsevier B.V. All rights reserved.


Rutkauskas A.V.,Vilnius Gediminas Technical University
Sustainability | Year: 2012

The present article is an attempt to perceive the universal sustainability observable in an individual country or region, where the religious, political, social-demographic, economic, environmental, creative, technological and investment subsystems are revealed not only through the vitality of spiritual and material existence media, but rather through the signs of the development of these subsystems as self-assembled units through the erosion of their interaction. The problem of optimal allocation of investment resources among the separate sustainability's subsystems was addressed by means of expert methods and techniques of portfolio methodology which will enable the achievement of the enshrined universal sustainability standards. A country-specific index composition of sustainability subsystems' indices was chosen as the universal sustainability index for the specific country. The index in its dynamics is perceived as a random process. While projecting its state and evaluating its power, i.e., the impact of the subsystem efficiency in a particular moment, this power is measured by the level of the index and the reliability or guarantee of an appropriate level. To solve the problem of investment resources allocation, the idea of Markowitz Random Field was invoked in order to reach the maximum power of sustainability index while applying the technical solution-the so-called "GoldSim" system. Engineering is a methodology that aspires to reveal the core attributes of complex systems and instruments in order to manage the possibility to influence these properties for the systems. Experimental expert evaluation and case study is performed on Lithuanian data. © 2012 by the authors.


Sivilevicius H.,Vilnius Gediminas Technical University
Transport | Year: 2011

Economy and nonproductive sectors of each country could not function without a transport system (TS). Having analysed research works on the interaction of separate TS elements, it was identified that there is no common model for all types of interaction. TS consists of material (physical) objects: traffic participants and freight to be carried, a transportation process and operations' control. TS classification scheme devised according to systematically selected criteria, showing that several criteria are often applied at the same time in official documents, is presented. Original TS physical elements' interaction model with 6 interaction levels is presented as well. The model is suitable for all modes of transport. Six levels of interaction are distinguished: autointeraction of transport elements, the first level; TS elements' interaction, the second level; TS elements' interaction with external environment, the third level; interaction of transport modes, the fourth level; TS interaction with the country's economy and nonproductive sectors, the fifth level; and TS impact on the country's GAV (Gross Added Value), the sixth level. Properties and factors influencing on the results and parameters of interaction have been systematized. Levels and properties of interaction have been analyzed as well. To evaluate the importance of interaction levels to the parameters of the transportation process, the method of Analytic Hierarchy Process (AHP) has been recommended. Copyright © 2011 Vilnius Gediminas Technical University (VGTU) Press Technika.

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