https://rsglobal.pl/index.php/ejits/issue/feed European Journal of Intelligent Transportation Systems 2021-03-30T00:00:00+02:00 RS Global, Editorial office (journals department) editorial_office@rsglobal.pl Open Journal Systems <p style="line-height: 1.6;"><strong>Original and Review articles</strong><br>p-ISSN: 2657-4217<br>e-ISSN: 2657-4225<br>DOI: 10.31435/rsglobal_ejits<br>OCLC Number: 1150485226<br>Publisher - RS Global Sp. z O.O., Poland<br>Subject areas: Intelligent Transportation Systems</p> https://rsglobal.pl/index.php/ejits/article/view/1813 MANAGEMENT DECISION SUPPORT SYSTEM FREIGHT TRANSPORTATION ON TRANSPORT NETWORKS 2021-02-02T07:15:38+01:00 Prokudin Georgii info@rsglobal.pl Chupaylenko Оleksii info@rsglobal.pl Prokudin Оleksii info@rsglobal.pl Khobotnia Tetiana info@rsglobal.pl <p>The existing methods of reducing open transport problems to a balanced form, namely: the method of fictitious supplier / consumer, the difference method and the method of coefficients. The transport problem is a special case of the general problem of linear programming, so it is also possible to apply the most well-known method of solving problems of this class - the simplex method, pre-grafting the transport problem to the form of linear programming problem and taking into account its specificity. Experimental studies on the optimization of unbalanced freight traffic, which were obtained using the developed decision support system, allow us to conclude that the simplex method has shown high efficiency in finding optimal freight plans for both balanced and unbalanced transport problems. Analysis of the results of the use of all methods on many practical examples allows us to conclude that none of them has an absolute advantage over others. This fact is explained by the fact that each of the methods in some cases of its application showed a better result compared to the results of others.</p> 2021-01-30T00:00:00+01:00 Copyright (c) 2021 Prokudin Georgii, Chupaylenko Оleksii, Prokudin Оleksii, Khobotnia Tetiana https://rsglobal.pl/index.php/ejits/article/view/1817 ECONOMIC AND MATHEMATICAL MODEL OF CARGO TRANSPORTATION IN INTERNATIONAL PIGGYBACK CONNECTION 2021-02-17T14:30:54+01:00 Polishchuk V.P. editorial_office@rsglobal.pl Liubov Guzhevska editorial_office@rsglobal.pl Olena Denys denysolena@gmail.com <p>It is established that with the help of mathematical modeling it is possible to estimate functional links between different parameters that influence the delivery time in international communication. The model of the choice of the type of connection according to the time criterion, which has practical value, can be used to make a decision when choosing a variant of the combination (automotive or piggyback). The ease of use of the developed models has advantages over all previously proposed because it allows you to calculate the economic feasibility of using the type of combination not only as an area of effective use, but also for each individual case to determine the efficiency of choosing the type of connection. The use of models gives the opportunity to economically justify the choice of the type of connection and will allow the motor transport company to reduce transportation costs by 10-15%.</p> 2021-01-30T00:00:00+01:00 Copyright (c) 2021 Polishchuk V.P., Liubov Guzhevska, Olena Denys https://rsglobal.pl/index.php/ejits/article/view/1822 IMPROVEMENT OF METHODS AND MEANS OF EVALUATING OF SKID RESISTANCE ROAD SURFACES IN UKRAINE 2021-02-18T12:27:10+01:00 Leonid Rybitskyi rybitskiy@gmail.com Dmitry Pavlyuk ntupavlukd@gmail.com <p>Evaluation of skid resistance of the road surface is a very important issue of roads maintenance because this indicator is one of the main transports and operational indicators of the road surface, on which road safety depends. It is known from many sources that one of the causes of road accidents (accidents) is the low value of the skid resistance of the road surface.<br>After analyzing the existing methods and tools for evaluating the skid resistance and the lack of those that could correspond to the accuracy of the results of current regulations, the National Transport University decided to improve the methods and tools for evaluating the skid resistance road surface in Ukraine.<br>The purpose of the development was to improve the methodology for evaluating the properties skid resistance of road surfaces by increasing the requirements for testing, improving the accuracy of instruments, informativeness and productivity of measuring the parameters of skid resistance qualities of road surfaces. The result of many years of work was an improved methodology, on the basis of which the regulatory documents of Ukraine were approved and the equipment was created, which allows to obtain the relevant value of the coupling qualities of road surfaces with confidence.<br>According to the results of experimental studies, the correlation coefficient between the readings of various modifications of the developed Universal road measuring equipment "UDVO" is from 0.955 to 0.981, and the deviation of the equipment readings from the values of skid resistance qualities determined by standard methods do not exceed 5%.</p> 2021-01-31T00:00:00+01:00 Copyright (c) 2021 Leonid Rybitskyi, Dmitry Pavlyuk