Browsing by Author "Luzhanska, Nataliia"

Now showing 1 - 6 of 6
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    Construction of a Simulation Model of Goods Delivery in International Road Transportation Taking into Account the Functioning Efficiency of Logistics Supply Chain
    (PC TECHNOLOGY CENTER, 2023) Lebid, Ievgenii; Luzhanska, Nataliia; Lebid, Iryna; Mazurenko, Alexander; Halona, Inesa; Horban, Anatolii; Mykhailenko, Iryna; Medvediev, Ievgen; Sotnikova, Tetiana
    ENG: The object of this study is the process of goods delivery in international road transport using various types of logistics chains. The problem being solved is due to the need to develop recommendations for exporters of goods to reformat or design new supply chains during wartime. The expediency of organizing foreign trade operations by the cargo owners' own forces or with the involvement of enterprises providing logistics consulting services is considered. A simulation model of goods delivery in international road traffic was built and implemented in the GPSS World simulation automation package. The model involves the optimization of organizational and technological processes related to the activity of both a separate link and the entire supply chain. The study takes into account the components of the time characteristics of the performance of preparatory work when establishing cooperation with institutions and organizations, as well as the direct service of the exporter. The application of the developed model in practical activities will provide an opportunity for exporters to obtain information about the duration and reliability of the stages of a foreign trade operation and the feasibility of involving consulting enterprises in cooperation. At the same time, the simulation results reflect the performance indicators of the proposed supply chains when delivering goods by road transport along various routes. The proposed simulation model will make it possible to reduce the time spent searching for links in the formation of a supply chain by 8–12 %, and the duration of a foreign trade operation by 10–14 %. Thus, the reliability of cooperation with intermediary organizations will increase by 8–11 %.
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    Construction of a Simulation Model of the Work of a Transport and Forwarding Enterprise in Organizing Multimodal Cargo Transportation
    (TECHNOLOGY CENTER PC, Kharkiv, 2024) Lebid, Ievgenii; Luzhanska, Nataliia; Lebid, Iryna; Mazurenko, Alexander; Roi, Maksym; Mykhailenko, Iryna; Yelnikova, Lidiia O.; Tihov, Oleksii
    ENG: The object of this study is the process of rendering transport and forwarding services when organizing multimodal cargo transportation in international traffic. The task to tackle was predetermined by the need to devise recommendations for choosing the optimal cargo transportation route, taking into account the individual requirements of the customer and performance indicators of the forwarders at the transport and forwarding company. A simulation model of the work of a transport and forwarding company in the organization of multimodal transportation of goods was built and implemented in the GPSS World simulation automation software. The model involves the optimization of the duration of service provision and makes it possible to determine the required number of transportation department specialists to enable effective cooperation with customers. When constructing the model, the duration of business processes in the organization of multimodal transportation was taken into account. In addition, the model accounts for the probability of errors and service delays, as well as the average delay time when errors occur, which will make it possible to take into account the additional work time of the forwarder to eliminate them. The application of the built model in practice will allow specialists at transport and forwarding companies to organize multimodal transportation according to several alternative routes that meet the individual needs of the customer. It will also make it possible to determine the optimal number of forwarders needed to work at the multimodal transportation department. In this case, the duration of rendering transport and forwarding services will be reduced by 12–16 %, the waiting time in queues for service will decrease by 9–13 %, and the efficiency of the work of specialists at the multimodal transportation department will increase by 9–14 %.
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    Development of a Simulation Model of the Activities of a Transport and Forwarding Enterprise in the Organization of International Road Cargo Transportation
    (РС Тесhnology Сеntеr, Kharkiv, Ukraine, 2023) Lebid, Ievgenii; Luzhanska, Nataliia; Lebid, Iryna; Mazurenko, Alexander; Roi, Maksym; Medvediev, Ievgen; Sotnikova, Tetiana; Hrevtsov, Serhii
    ENG: The object of this study is the process of planning the work of a transport and forwarding company when serving different categories of customers who need organizational support for the delivery of goods by road transport in international traffic. The solved problem is due to the need to devise recommendations for organizing the work of forwarders when interacting with customers of transport and forwarding services that export or import different categories of cargo. A simulation model of the transport and forwarding company’s work in customer service was developed and implemented in the GPSS World simulation automation package. The model provides for the optimization of organizational and management processes in cooperation with customers of transport and forwarding services. When developing the model, the duration of the types of work in which freight forwarders are involved in the export and import of goods by road transport was taken into account. The model also predicts the probability of errors in the forwarder’s work and the duration of their elimination. The application of the developed model in practice will enable the owners of transport and forwarding companies to plan the full-time number of forwarders and the duration of service provision under different conditions of interaction with customers. The simulation results reflect the performance indicators of the enterprise in serving different categories of customers. This will make it possible to optimize the work of the enterprise by planning personnel support. At the same time, the duration of transport and forwarding services will be reduced by 10–15 %, the capacity of the enterprise will increase by 6–11 %, and the reliability of service provision will increase by 8–14 %.
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    Identification of the Railway Reconstruction Parameters at Imposition of High Speed Traffic on the Existing Lines
    (Dnipro National University of Railway Transport named after Academician V. Lazaryan, 2019) Lebid, Iryna; Kravchenya, Irina; Dubrovskaya, Tatyana; Luzhanska, Nataliia; Berezovyi, Mykola I.; Demchenko, Yevhen B.
    ENG: Abstract. The problems of railroad design technical reconstruction aimed at ensuring train protection in introduction of high-speed traffic on the rail lines have been addressed. The description of railroad technical system with certain specific features has been proposed. The pair of mutually dual problems regarding the optimal reconstruction of railway curves for raising train speeds at minimal capital investments has been addressed. The problem of determining the optimal speeds of trains of each category under optimum outer rail cant, increase of the unbalanced acceleration value, compliance with the condition of uniform load on rail tracks, comfortable carriage of passengers, in which reduced costs on increased speeds in curved tracks will be minimal has been formulated. To achieve the goals of the study, mathematical optimization techniques and algorithms of analysis of the rail lines of different nature are used. This, by finding and value engineering optimization, allows to minimize high-value and lengthy procedures of physical simulation. As a problem-solving technique, Lagrange multiplier method and its applicability have been proposed. Numeral solution to the problem of selection of certain stretches for increasing rolling stock speeds on operating lines without reconstruction or with minimum expenses on reconstruction of contour of track has been reviewed.
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    The Influence of Customs and Logistics Service Efficiency on Cargo Delivery Time
    (National Aviation University, Kyiv, 2019) Luzhanska, Nataliia; Lebid, Iryna; Kotsiuk, Oleksandr; Kravchenya, Irina; Demchenko, Yevhen B.
    ENG: The formation of a logistics chain with the use of a freight customs complex for customs and logistics service provision requires detailed research and investigation into technical, technological and organizational constraints that may affect overall cargo delivery time. Actors in the transport market, while interacting with customs authorities, have to take into account customs legislation requirements and road transport complex operational characteristics, since non-compliance with them will cause a number of delays due to the need for corrective actions and will also entail a number of penalties. In order to increase the accuracy of delivery time planning, it is considered the procedure for customs and logistics service provision involved in cargo export and import as well as for stowing cargo in a customs warehouse or a temporary storage warehouse. It is also addressed the issue of comprehensive service provision to entities engaged in foreign economic activities using a freight customs complex. The most widespread violations requiring additional correction time are identified. It is considered the technological constraints connected with the handling capacity of the research object. The influence of the organization and planning of a freight customs complex`s operation on its efficiency is determined. It is proposed to consider the lack of available resources provided by customs infrastructure facilities and the excessive idle time of vehicles as a factor in delivery time planning The paper findings can be implemented in the operation of freight customs complexes in cooperation with private sector enterprises and state organizations when performing foreign trade operations.
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    Selecting a Transport and Forwarding Company for Meeting a Customer’s Needs when Organizing International Road Cargo Transportation
    (PC TECHNOLOGY CENTER, 2024) Lebid, Ievgenii; Luzhanska, Nataliia; Lebid, Iryna; Mazurenko, Alexander; Halona, Inesa; Kovtsur, Kateryna; Yarmak, Tetiana; Sotnikova, Tetiana; Medvediev, Ievgen
    ENG: The object of this study is the process of planning the work of a manufacturing enterprise that needs transport and forwarding services when exporting goods to counterparties in different countries of the world.The problem being solved is predetermined by the need to devise recommendations for choosing a transport and forwarding company when serving an individual customer, based on its individual needs and conditions of cooperation. A simulation model for the selection of a transport and forwarding company was constructed and implemented to meet the customer’s needs when exporting goods, applying the GPSS World simulation automation package.The model provides for the optimization of the choice of a transport and forwarding company for servicing counterparties based on the assessment of their activity indicators over previous periods of cooperation. When building the model, the types of commercial conditions of the exporter’s cooperation with the transport and forwarding company, indicators of the quality assessment of the basic level of service and the duration of service at all stages of the foreign trade operation were taken into account. The application of the constructed model in practice will enable exporters and importers to choose a transport and forwarding company depending on the individual needs of customers in the delivery of goods. The simulation results reflect the performance indicators of the provision of transport and forwarding services by various specialized enterprises. This will make it possible to involve in the transport and forwarding service of a separate counterparty an organization that will meet all the requirements of goods buyer in accordance with the terms of the international economic contract. At the same time, the duration of choosing and agreeing the terms of cooperation could be reduced by 12–15 % while the efficiency of transport and forwarding services would increase by 13–16 %.