Ilona Jacyna-Gołda

• Professor PhD Eng.
• Warsaw University of Technology

The evolution of aircraft power systems has been driven by increasing electrical demands and advancements in aviation technology. Background: This study provides a comprehensive review and experimental validation of on-board electrical network development, analyzing power management strategies in both conventional and modern aircraft, including the...

This article addresses the topic of cyber-attacks in air transport, which is crucial for ensuring the safety and reliability of airports and air transport operations. The aim of the article was to present a new method for predicting cyber-attacks in air transport based on neural networks. The task of the neural network was to determine the multiple...

The paper discusses the issue of road traffic safety as a basic element of transport logistics. The aim of this paper is to identify and analyze road safety risk factors, in particular road accidents. It should be noted that in practice there is not only one cause of road accidents. There is usually a group of successive factors that create some ki...

Nowadays, sustainable development is becoming a model for significant improvements in the modern world. Taking into consideration possible future challenges, transport must have sustainable features. Today, such a type of transportation as intermodal transport (transport that uses more than one mode of transportation) is gaining relevance. It is on...

The aim of the article is to develop a model for assessing the safety of children’s travel. Safety is the most important indicator describing the mobility system of children, even more important than the costs of operating it. Due to the dynamic development of intelligent solutions, it is possible to undertake additional activities supporting the i...

Product-Service System (PSS) has been perceived since the 90s as a concept supporting enterprises of various industries in creating a competitive advantage and generating new value for customers by expanding the offer with additional services related to the product. Product-Service System (PSS) draws attention to the life cycle of products and serv...

The article presents a method of selecting a fleet of vehicles with a homogeneous structure for tasks based on the statistical characteristics of their operational parameters. The selection of a vehicle fleet for tasks is one of the stages of vehicle fleet management in transport companies. The selection of a vehicle fleet for tasks has been define...

The implementation of Product-Service Systems (PSS) calls for the modification of existing business models. The goal of the paper is to work out an analysis and a classification of PSS design methods used in the development of new business models. Using a systematic review method, we identified 60 PSS design methods. Following the examination of th...

The article presents the problem of determining the routes of vehicles in the transport of dangerous materials in the context of minimizing the probability of a road accident with a serious degree of damage to the car, i.e. serious accidents. The author's model taking into account the minimization of the probability of accidents in the transportati...

Value Stream Mapping (VSM) is a popular and easy tool for visualizing production processes in enterprise. It allows one to eliminate or reduce waste, i.e., activities that do not create added value for the customer. The versatility of this tool allows it to be used in industry. There are theoretical, methodological, and practical aspects encountere...

The correct operation of the continuous welded track requires diagnosing its condition and preparation of track metrics requiring measurements of displacements of rail under operation. This is required as there are additional thermal stresses in the rails with values depending on the temperature changes of the rails. Therefore, the climatic conditi...

Noise pollution from transport is the spread of sounds produced by transport and accompanying activities, which affect human and animal life. Cargo and human transport activities, as well as the functioning of linear and nodal infrastructure contribute to the production of unwanted noise that may reduce the quality of life and affect human health....

The paper proposes a new single criterion mathematical model for the designing of multimodal transport processes by taking into account the cargo’s susceptibility and the concept of its inclusion into the EPLOS system, which is done as part of the EUREKA initiative. This system will integrate the data from logistics sources and transport and logist...

Nowadays, apart from travel time and cost, more and more attention is paid to ensuring that ecological footprint of the means of transport used for a journey is as small as possible. Therefore, it is reasonable to look for methods and solutions that will allow planning communication connections according to the principles of sustainable development...

The facility location problem is a popular issue in the literature. The current development of world economies and globalization of the market requires continuous improvement of methods and research in this field. The location of the object determines the time of transport, affects the operational costs of the supply chain, and determines the possi...

The article presents an approach to assessing the reliability of logistics processes implemented in supply chains in terms of time losses resulting from the selection of a variant of material flows in the supply chain. In order to define this indicator, a mathematical model of the supply chain has been developed, i.e. the parameters of the research...

The work presents the issue of selecting means of transport that perform specific logistic tasks in supply chains. The paper explains the concept of allocation in supply chains, effectiveness and discusses the indicators for assessing the effectiveness of the realized allocation. Technical, economic and quality indicators were distinguished among t...

Perfect order rate (POR) is one of the superior measures of the logistics processes quality. POR is at the top of the hierarchy of key performance indicators (KPI) in supply chain and is considered as difficult to define and measure. Perfect order rate is composed of sub-measures touching technical, economic, quality and safety aspects of logistics...

Deliveries of goods in urban agglomeration distribution systems are conditioned by many factors resulting from the specificity and character of these agglomerations. Urban agglomerations, as a specific spatial and structural system or a multi-layered spatial structure, with a specific location, spatial organization and functioning, require a system...

The article refers to the problem of planning international transport. The aim of this paper is to develop the algorithm which will be used to planning international transport. Planning international transport problems are the complex decision problems which refer to the vehicle routing problems and the problems of designating the minimal path in t...

The article presents issues related to database design for problems of planning transport of cargoes by intermodal transport using road and air transport. The main aim of this paper is to develop the structure of the database used in the problems of planning transport of cargoes by intermodal transport. The issue of intermodal transport is a comple...

The article defines the database structure used in the issue of the assignment of air transport operators to commissioned transport tasks. The purpose of the work is to develop a database structure that fulfills the function of recording information, presenting results and processing calculated data. Presenting the database in a modular manner is a...

Effective fleet management is related to the care for their rational use and proper diagnostics. Early detection of potential irregularities enables to prevent failures and carry out transport processes in an undisturbed way. One of the most important components, from the safety point of view, is the braking system. Laboratory tests can be used to...

This paper presents multi-criteria warehouses location problem in the logistics network. In order to solve this problem the location model was developed. The limitations and optimization criteria of the model were determined. Optimization criteria refer to transportation costs, costs associated with warehouses, e.g.: local taxes, expenditure on sta...

Paper presents analysis of the order picking system efficiency under congestion situations. Analysed picking system is manual and organized as picker-to-part system with very narrow aisles. About 150 different variants of the system was taken into consideration. Each of them is characterized by different storage policies (random, class-based and vo...

The article describes the problem of the location of municipal plants in the logistics network carrying out the collection of municipal waste from the inhabitants of a given region. The problem of plant locations has been shown in the aspect of a multi-criteria decision problem. The problem of plant locations may be reviewed from two basic viewpoin...

The warehouse is a node element of logistics network affecting cost and reliability of material flows and determining logistics services quality. Mechanisms of warehouse process control and the ability to shape warehouse service potential have an impact on its readiness to provide services at a required quality level. This potential includes materi...

This paper presents warehouse location-routing problem in the logistics network. In order to solve this problem the location model was developed. The limitations and the optimization criterion of the model were determined. The optimization criterion refers to the distance between the facilities of the network. The final location of warehouse facili...

This paper presents the problem of the assessment of the supply chains in the context of their effectiveness. In this paper the concepts of a supply chain and effectiveness were characterized. The supply chain is a structure of entities which are connected with each other by the use of material and financial flows and functional, structural, techno...

The warehouse facilities location is a complex multi-objective decision problem. In order to determine this location one can use a different mathematical models that describe the location according to the accepted constraints and criterion functions. This paper presents the warehouses location in the logistic network. The logistic network consists...

In the article was presented the issue of performance of equipment and means of internal transport and its impact on the implementation of warehouse processes. In this aspect was presented the role of warehouse in the supply chain and its importance in the effective flow of material goods. Been identified design requirements for warehouse facilitie...

Determining of the delivery schedule in urban areas requires consideration of points of view of various players, such as suppliers, customers, but also (indirectly) inhabitants of city. Taking into account these interests in the optimization model is necessary to ensure the sustainable transportation of cargo in cities. Moreover, the solution of th...

The paper discusses main decision problems analysed in the subject matter of servicing actors operating in the supply chains, i.e. the vehicle routing problem, vehicles-to-task assignment problem and the problem of entities’ localization in the supply chain. The input data used to describe supply chains is given as well as the basic constraints and...

The problem of sustainable transport system development is currently very important and frequently analysed. It concerns promotion of such transport, which is efficient, cost effective and meets the expectations of the society. At the same time, such transport should minimize its negative impact on public health, environment, and economy or urban p...

The paper presents selected aspects of developing sustainable transport system and provides the essential elements of scenario analysis procedure. The scenario analyse permits a background for setting approaches for the development of transport system. A major step towards reliable scenario analyses is establishing a system of criteria and indicato...

The quality of supply chain operation depends on quality of its particular elements, including warehouses. The paper presents an attempt to describe the quality of warehouse operation in terms of dependability. Authors discussed issues related to assessing warehouse operation, quality problems and solutions to increase the quality of work. The tech...

The paper presents issues related to design and organization of the warehouse process. Draws attention to problems of modelling logistics facilities and processes occurring in them. Paper also points out the essence of correct operation of warehouses and associated with this risks for supply chain. Warehouse processes have been properly defined and...

The main purpose of the paper is to present criteria of efficiency of assignment of vehicles to tasks at municipal companies, which collect garbage from city inhabitants. Three types of criteria are introduced in the paper: garbage collection time, length of route allocation, and utilization of resources. A two-stage method of optimization of taskr...

This paper describes the problem of determining the location of warehouses in the logistics network supplying different type of entities with raw materials. Was presented a mathematical model, i.e. were defined decision variables, were specified constraints and objective function that minimizes the total cost of transporting raw materials from supp...

In this paper, presented selected aspects of the impact that the distribution of products in a warehouse has on the picking of orders. This problem is particular important for medium and large warehouses characterized by considerable rotation of goods. The aim of this study was to assess the impact of the method of classification of products that w...

Transport jest jednym z najbardziej destrukcyjnych działów gospodarki dla środowiska, z wyjątkiem niektórych rodzajów przemysłu ciężkiego i rolnictwa. Należy dążyć do ograniczenia jego negatywnego wpływu na środowisko. Jednym z działań może być ograniczenie wielkości emisji szkodliwych związków spalin. Do oceny słuszności zaproponowanych zmian możn...

The paper presents some aspects of shaping the sustainable development of the transport system. Describes the essence of scenario analysis together with the procedure to take such analyzes. For example, distribution of the traffic flow on transport network for several scenarios of development, it was possible to use the simulation model EMITRANSYS....

This paper presents some approach for the formulation of the decision-making model in supporting the assessment of supply chain efficiency. Were presented factors affecting the efficiency of the functioning of individual links of supply chain. Was pointed out the technical, economic, organizational and reliability aspects affecting the efficiency a...

The paper is a result of a research work concerning the development of an environmentally friendly transport system - Project EMITRANSYS. The publication contains the issues of shaping the transport system, where important factor due to the aspect of sustainable development is including the external costs in transport activity. This paper presents...

Points of distribution, sales or service are important elements of the supply chain. These are the final elements which are responsible for proper functioning of the whole cargo distribution process. Proper location of these points in the transport network is essential to ensure the effectiveness and reliability of the supply chain. The location of...

The paper presents selected aspects of the application of information technology to support the implementation of logistics processes. The general discussion about optimization logistics processes precedes basics of designing procedure for logistics systems of different scale which are the foundation for three examples of applications tailored for...

Transport, especially road transport, is responsible for the large air pollution. It results, among others, from the composition of the fuel used to propel the vehicle, type and the basic characteristics of the vehicle, the spatial distribution of infrastructure, vehicle speed, the existence of congestion etc. To the harmful compounds produced by c...

This paper is prepared as a part of the scientific project “Proecological transport system designing” (EMITRANSYS). It presents the selected aspects and roles of railway transport in realization of the tasks set out by the national transport system. Particular attention is paid to the ecological aspects of railway transport, especially to the emiss...

Vehicles have an impact on environmental pollution through emissions. Thus, they generate different carbon footprints, or emit different amounts of carbon dioxide into the atmosphere. This article attempts to determine the effects of carbon dioxide on the distribution of the traffic stream in the selected part of the transport network. For the anal...

The considerations presented in this paper aims to identify the critical links in the network of national roads in Poland. These connections are ranked due to the generic structure of the vehicle, road class or region in which they are located. The article consists of fourth sections containing an introduction to the issues, the general characteris...

Article presents the problem of external costs with particular attention paid to role of transport in their generating. The classification of external effects as well as their effects influencing costs is presented. The basic methods of external costs estimation are presented and discussed. The formal description of different aspects of external co...

Paper presents a holistic approach to modelling large-scale transport systems in terms of transport co-modality and environmental friendliness. The definition of holistic approach to designing is presented and developed into a base for modelling of proecological transport systems. The substantial elements of the model of proecological transport sys...

The dispersion of pollutants is a very important issue related to the ecology of transport. The spread of chemical compounds emitted by vehicles significantly affects the quality of the atmosphere, which in turn affects the economy and society. The article presents the need of studying the dispersion of pollutants in the country and an overview of...

In the assumptions regarding to the transport policy both at the level of country and Europe there is the concept of sustainable development of transport. Warsaw University of Technology in cooperation with Poznan University of Technology performs research work concerning the shaping of environmentally friendly transport system – Project EMITRANSYS...

The article presents problem of designing sustainable transport system. Authors define sust ainable transport in aspect of transportation systems development, discus threats resulting from transport operation including ecological is- sues, and present evaluation criteria to asses transport sy s- tem. The bases of project EMITRANSYS were presented....

With the invention of specialized, portable research equipment, construction of which enabled road tests of vehicles, it has become possible to verify benefits ensuing from application of eco-driving rules outside the laboratory – the test stand measurements. Test of the vehicles’ operation in terms of ecology are essential especially in case of to...

The paper presents selected aspects of the evaluation of the effectiveness and risks of the logistics chain that supports the enterprise. It was assumed that the logistics chain includes all activities associated with the flow of materials from the sourcing of raw materials for sale to the ultimate purchaser of the product and the disposal of used...

The paper is a result of research work carried out under the project EMITRANSYS for shaping ecological transport system. The paper presents selected aspects of emission and concentration of harmful compounds of exhaust gases generated by road transport. It also presents the share of harmful compounds emitted by road transport in comparison with the...

Transport impacts destructive on the environment. I ts negative impact can be expressed with the help of external costs. Some modes of transport affect in a greater extent (high er value of external costs), others less. The aim s hould be to reduce the size of the external costs of transport activities. One of the activities may be transfer of traf...

In the assumptions regarding the transport, policy both at the level of country and Europe there is the concept of sustainable development of transport. It assumes a balance between social and economic factors and the development of spatial and environmental protection. The transport system, which takes into account the concept of sustainable devel...

This paper discusses selected environmental and technological issues of routing freight vehicles in urban areas. The conditions of organizing distribution minimizing not only realization time but also the emission of harmful components of exhaust gases are described. Time-dependant traffic conditions characteristic for densely populated urban areas...

This paper introduces the method of designing logistic network for manufacturing companies. The specificities of manufacturing company and logistics network structure were done with regard to literature review. The problem is to determine optimal number of logistics facilities and assigning production companies to them. It must be done in a way ens...

The paper presents selected aspects of a design of a proecological transport system. The necessity of designing proecological transport systems results from forecasts of transport demand and adaptation of the infrastructure to the standards and requirements of the EU. The European Commission pays special attention to the need for sustainable and en...

The article presents an application of queuing theory (mass service) to describe transportation process. It presents the essential concepts of the queuing theory. The process of moving a load unit through the logistics centre was presented. To illustrate the issues an example of five-level, two-input queuing networks was examined.

This paper introduces the method of designing logistic network for manufacturing companies. The specificities of manufacturing company and logistics network structure were done with regard to literature review. The problem is to determine optimal number of logistics facilities and assigning production companies to them. It must be done in a way ens...

This paper is a result of research work carried out under the project for development of model of logistic system of Poland in aspect transport co-modality. Article presents a general approach to optimizing structure of logistics network. The problem is to determine optimal number of logistics facilities and assigning clients to them. It must be do...