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Container throughput forecasting using dynamic factor analysis and ARIMAX model
Marko Intihar, Tomaž Kramberger, Dejan Dragan, 2017, izvirni znanstveni članek

Opis: The paper examines the impact of integration of macroeconomic indicators on the accuracy of container throughput time series forecasting model. For this purpose, a Dynamic factor analysis and AutoRegressive Integrated Moving-Average model with eXogenous inputs (ARIMAX) are used. Both methodologies are integrated into a novel four-stage heuristic procedure. Firstly, dynamic factors are extracted from external macroeconomic indicators influencing the observed throughput. Secondly, the family of ARIMAX models of different orders is generated based on the derived factors. In the third stage, the diagnostic and goodness-of-fit testing is applied, which includes statistical criteria such as fit performance, information criteria, and parsimony. Finally, the best model is heuristically selected and tested on the real data of the Port of Koper. The results show that by applying macroeconomic indicators into the forecasting model, more accurate future throughput forecasts can be achieved. The model is also used to produce future forecasts for the next four years indicating a more oscillatory behaviour in (2018-2020). Hence, care must be taken concerning any bigger investment decisions initiated from the management side. It is believed that the proposed model might be a useful reinforcement of the existing forecasting module in the observed port.
Ključne besede: container throughput forecasting, ARIMAX model, dynamic factor analysis, exogenous macroeconomic indicators, time series analysis
Objavljeno: 12.12.2017; Ogledov: 51; Prenosov: 6
.pdf Celotno besedilo (1,33 MB)

Vertical marketing systems, supply chains and the new indicators of retailing's significance
Zdenko Segetlija, Josip Mesarić, Davor Dujak, 2014, izvirni znanstveni članek

Opis: In modern vertical marketing systems (i.e., in grocery sector), the greatest power is demonstrated by retail chains, and producers depend thereupon. This paper analyzes vertical marketing systems and the role of retailing therein. Specially analyzed is the power of retail chains’ demand with regard to the entire supply chains they head, as well as the present-day new competition in retailing and modern business concepts related to the vertical marketing systems. Additionally, analyzed are also select indicators to examine the significance of retailing in an individual national economy. The purpose of this paper is to emphasize the new indicators of significance of retailing in economy with regard to the realized GDP, as a component of value chains. These indicators complement the usual retailing significance analyses from the point of view of its share in the number of employees and the number of companies. From the conducted analysis, one may conclude that the vertical marketing systems become increasingly important, and retailing assumes a new role in economy in that sense. Thus, new indicators of retailing significance might also be necessary.
Ključne besede: vertical marketing systems, retailing, retail chains, retail supply chain, significance of retailing
Objavljeno: 17.11.2017; Ogledov: 109; Prenosov: 1
.pdf Celotno besedilo (185,22 KB)

The impact of transport infrastructure projects on sustainable development within a major logistics gateway in North West England
Dimitrios Paraskevadakis, Alan Bury, Jin Wang, Jun Ren, Stephen Bonsall, Ian Jenkinson, 2016, izvirni znanstveni članek

Opis: In the North West of England the issue of a perceived infrastructure gap is of increasing concern. Investment needs to be made to improve the transport infrastructure of the region if it is to be expected to promote the development of its own regional logistics gateway. Funding tools have been set up to address the challenges arising from the imbalance in infrastructure development that exists between regions in the north of the United Kingdom and those in the south. For regions with well developed economies the outlook is promising as the availability of modern transport infrastructure looks set to improve. However, some sources believe that the development of new transport infrastructure will have a negative impact upon sustainable development. It is expected that this will occur in a range of both direct and indirect ways. As a result, it is critical that planning for the creation of new intermodal transport infrastructure, or the upgrading of that which already exists, takes into account the impact that these developments will have on the sustainable development of the host region. A scenario based development methodology is proposed in this paper. It was developed to provide a way to identify potential scenarios that may arise within a given region as a result of transport infrastructure projects. To create significant scenarios the methodology is dependent on the availability of a sufficient quantity of quality data. For this paper that data was collected through a focus group composed of stakeholders from the region in question. This was further supported by the performance of an impact survey using the same group of stakeholders.
Ključne besede: multi-modal logistics, gateways north west england, focus group, impact survey, scenarios
Objavljeno: 17.11.2017; Ogledov: 118; Prenosov: 2
.pdf Celotno besedilo (435,70 KB)

The costs of container transport flow between Far East and Serbia using different liner shipping services
Vladislav Rajkovič, Nenad Đ. Zrnić, Đorđe Stakić, Borut Mahnič, 2015, izvirni znanstveni članek

Opis: Liner shipping is the most efficient mode of transport for goods. International liner shipping is a sophisticated network of regularly scheduled services that transports goods from anywhere in the world to anywhere in the world at low cost and with greater energy efficiency than any other form of international transportation. Liner shipping connects countries, markets, businesses and people, allowing them to buy and sell goods on a scale not previously possible. Today, the liner shipping industry transports goods representing approximately one-third of the total value of global trade. Ocean shipping contributes significantly to international stability and security. Considering the large and constant struggle in the market in terms of competitive pricing of products, a very important and indispensable role represents the container transport with a clear task to define the final price of the product. This paper analyzes the costs of container transport flow between Far East and Serbia, using different liner shipping services, observing the six world’s largest container operators (Maersk Line, Mediterranean Shipping Company, CMA CGM, Evergreen Line, China Ocean Shipping Company and Hapag-Lloyd) and inland (truck-rail-river) transport corridors. These corridors include distance between selected Mediterranean ports (Koper, Rijeka, Bar, Thessaloniki, Constanta) and Serbia. As a result, in this paper is considered a mathematical model that provides a comparative analysis of transportation costs on the different routes. It is observed already existing transport routes and it is also given hypothetical review to the development of new transport routes. The main goal of this research is to provide an optimal route with lowest transportation cost during container transport. Selection of the best route in the intermodal network is a very difficult and complex task. The costs in all modes of transport and the quality of their services are not constant parameters and changes depending on a number of conditions and characteristics. The analysis of this model within combined maritime and land-based networks would prove helpful for the study of logistics chains, the hinterland-foreland continuum, intermodal transport systems, and market competitiveness.
Ključne besede: costs, container transport, liner shipping, mathematical model
Objavljeno: 17.11.2017; Ogledov: 139; Prenosov: 3
.pdf Celotno besedilo (568,57 KB)

Systematic approach to sustainability of novel internet-based system for food logistics
Katariina Koistinen, Ville Uusitalo, Anna Huostila, 2017, izvirni znanstveni članek

Opis: The aim of this paper is to evaluate the sustainability of a novel internet-based system for food logistics and to create a framework for more detailed future sustainability assessments. Digitalization enables food shopping via the internet and food delivery from producers to consumers using only a single terminal. The sustainability of different food logistic options was evaluated through a literature review and life cycle assessment. Given the frame of reference, there is a gap in the knowledge on the sustainability of food logistics. In addition, the current literature does not recognize a novel internet-based system for food logistics, as the literature has focused on evaluating the internet-based food logistics of traditional actors. The life cycle assessment results show that new food logistic options could reduce GHG emissions, but various factors affect the magnitude of the reductions. We also present a systematic approach to which factors should be included in future research. This paper creates a base for more detailed future food logistic sustainability assessments.
Ključne besede: sustainability, food, logistics, LCA, internet grocery
Objavljeno: 17.11.2017; Ogledov: 122; Prenosov: 1
.pdf Celotno besedilo (347,78 KB)

Smart city solutions in regard to urbanization processes
Halina Brdulak, Anna Brdulak, 2015, izvirni znanstveni članek

Opis: The aim of this paper is to show the spectrum of problems associated with the growing importance of cities in the context of rapidly occurring processes of urbanization. Therefore the following issues are included: the concept of smart cities, which are a combination of the intelligent use of information systems allowing for active management of the various areas of urban activity with the potential of institutions, companies and the active involvement and creative people; transport problems and the use of new technologies. Particular attention will be given to both, the issue of transport congestion as the strongest factor affecting the quality of life of residents and to the role of social capital in the creation of sustainable development. To exemplify the result of the cooperation between southern Polish communities there will be presented a case of the introducing process of the Silesian Card of Public Services with a wide range of its functionality.
Ključne besede: city logistics, sustainable development, smart cities, city development, urbanization
Objavljeno: 17.11.2017; Ogledov: 119; Prenosov: 3
.pdf Celotno besedilo (994,43 KB)

Seaport efficiency and productivity based on Data Envelopment Analysis and Malmquist Productivity Index
Joanna Baran, Aleksandra Górecka, 2015, izvirni znanstveni članek

Opis: Seaport efficiency and productivity are the critical factors for handling of goods in the international supply chains and plays an important role in trade exchange with other countries. It is important to evaluate efficiency and productivity of seaports to reflect their status and reveal their position in competitive environment. The main purpose of this article is to use Data Envelopment Analysis and Malmquist Productivity Index to measure the technical efficiency and total factor productivity of container ports. DEA analysis enables one to assess how efficiently a seaports uses the available inputs to generate a set of outputs relative to other units in the data set. This article presents the use CCR and BCC DEA model, to determine overall technical efficiency, pure technical efficiency and scale efficiency of container ports. The analysis gives a possibility to create a efficiency ranking of seaports. The study also applies the Malmquist Productivity Index (MPI), which was used to analyze changes in seaports productivity. The study indicated that technological progress had a greater impact on the change in productivity of container ports than changes in technical efficiency.
Ključne besede: Malmquist Productivity Index, seaports, efficiency, productivity
Objavljeno: 17.11.2017; Ogledov: 127; Prenosov: 4
.pdf Celotno besedilo (627,59 KB)

Opportunities for the applications of FMEA Model in logistics processes in Bulgarian enterprises
Maria Vodenicharova, 2017, izvirni znanstveni članek

Opis: The article explores the use of FMEA method in the logistics processes in manufacturing plants in Bulgaria. The surveyed enterprises have a system ISO 9001 and apply different methods of analysis and assessment of logistics processes. The purpose of this study is to present a model for improving the reliability of logistics processes through the FMEA (Failure Mode and Effect Analysis) method. An inquiry among 14 organizations in the implementation of FMEA was conducted. The results show that FMEA is not used for assessment in logistics processes and provides useful insights for decision-making to improve the reliability of supply. A framework based on the survey is presented for determining the reliability of logistics processes in manufacturing plants. The study demonstrates the applicability of the method in logistics processes and the role FMEA can play in assessing logistics processes.
Ključne besede: failure mode effects and analysis (FMEA), logistics process, quality
Objavljeno: 17.11.2017; Ogledov: 91; Prenosov: 3
.pdf Celotno besedilo (247,27 KB)

Investigation of an electrostatic discharge protective biodegradable packaging foam in the logistic chain
Ákos Mojzes, Barnabás Tóth, Péter Csavajda, 2014, izvirni znanstveni članek

Opis: Since the beginning of the 20th century, logistics has undergone a huge technological development, which has, however, resulted in many negative effects as well. The industry, particularly in the packaging industry has been a massive waste producer, although recently it has forced the use of new materials and it started to focus on environmentally friendly technologies. During the transportation of finished and semi-finished Electrostatic Discharge (ESD) sensitive products, the product packaging system has a vital role. These kind of packaging materials must be suitable to both logistic (protection against mechanical and environmental stresses) and special ESD protection requirements. During the transportation of printed-circuit electronic products, ESD defense is then of primary significance. However there is a huge disadvantage for the use of various shield bags. Namely, this kind of associated packaging is particularly pollutant, it causes a lot of inconvenience in the form of waste. In order to rule out these materials from the packaging system, new innovative solutions have to be found. The investigated TPS (thermoplastic starch biodegradable foam) is subjected to a validation, a long process to certify that this material unites properties of two types of packaging materials at the same time. On the one hand, this packaging foam has to meet the requirements product defense. On the other hand, the material must be anti-static under the logistic stress effects. In case it is found suitable, it can be an alternative of the conventional materials. In this article, we investigate the ESD characteristic of TPS foam. As this material sensitive for environmental parameters during transportation, we make the relevant Surface Resistance (Rs) tests on different temperature and humidity conditions. Based on result, the decision of the application can be done, as an ESD packaging material.
Ključne besede: eco-friendly, biodegradable, TPS foam, ESD protection
Objavljeno: 17.11.2017; Ogledov: 56; Prenosov: 1
.pdf Celotno besedilo (299,86 KB)

Impact of commercial motorcycle operation on urban mobility in Ogun State, Nigeria
Oluwaseyi Joseph Afolabi, Kolawole Taofeek Gbadamosi, 2017, izvirni znanstveni članek

Opis: The significant of public transport of cities in many developing countries lies in the fundamental fact that mobility and accessibility are essential for economic growth and of necessity to provide efficient and effective movement for goods and services. The collapse of public intra-city transport system paved way for the rise of motorcycles as means of public transportation in Nigeria. This paper discusses the impact of commercial motorcycle operation as a means of urban transportation. Of the 200 questionnaires administered, 191 questionnaires were received for analysis using the Statistical Package for Social Sciences (SPSS). Secondary data was also sourced to serve as complement to the primary data, thus allowing for a robust research. Descriptive statistical tools such as percentages were adopted to present the socio - economic characteristics in the area. Findings showed that the majority of the users are adult between the aged 31 and 40 years. Most of them (53.8%) are married and are fairly educated. Furthermore, it was recommended that the Nigerian government should provide employment opportunities for our teeming youth as this will go a long way in the reduction of number of youth who as a result of unemployment took to motorcycle riding business.
Ključne besede: transportation, traffic, motorcycle, Ogun State
Objavljeno: 17.11.2017; Ogledov: 77; Prenosov: 2
.pdf Celotno besedilo (196,17 KB)

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