1. "The Competitiveness of Small Baltic Container Terminals. The PROMETHEE II Multi-criteria Analysis"
Aleksandra Bartosiewicz, Paulina Szterlik

The article examines the competitiveness of small Baltic container terminals. In order to conduct the research, thirty terminals, whose annual maximum throughput capacity does not exceed 150,000 TEU, have been examined taking into consideration a number of criteria which are: length of the quay (C1), number of RTG (C2) and STS (C3) cranes, number of shortsea shipping connections (C4), maximum (technical) depth at the quay (C5), distance from motorways and expressways/national roads (C6), distance from the national railway station (C7). Selected k=7 criteria were used to perform PROMETHEE II (Preference Ranking Organization Method for Enrichment Evaluations II) multi-criteria ranking that enabled specifying those Baltic Sea container nodes which are in the area of strategic benefits for the analysed market sector.

 

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2. "Load Capacity of the XX. Century"
Monika Napieraj

This article is a compilation of all standards governing the payloads for road bridges in our country starting before the II World War, and ending on the Eurocode. The article also includes a comparative analysis of the effort of the structures subjected to loads compliant with these standards. On their basis, the load-bearing of the bridge was estimated.

 

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3. "The Welfare System as a Part of the Economic Measures for the State of Crisis"
Ladislav Šimák, Miloslav Seidl, Jozef Ristvej, Michal Titko, Lin Guo

The assessment of the current state of the citizens’ social welfare in crisis situations. A comprehensive evaluation of the risks threatening the process of providing the overall support for the citizens in crisis situations. The position and tasks of the centres of the social welfare for the citizens in crisis situations at the level of the local state administration. In this paper we deal with the welfare system as a part of the economic measures for the state of crisis in the Slovak Republic.

 

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4. "Emergency Evacuation Route Choice Based on Improved Ant Colony Algorithm"
Bo Wang, Lin Guo Jibiao Zhou, Danjuan Hu, Marcin Pawęska, Ladislav Šimák, Jozef Ristvej, Michaela Jánošíková

In order to explore the optimal route choice for emergency evacuation in the campus, we propose a novel route choice method based on brittle characteristics of campus system and improved ant colony algorithm. Both optimal and worst-case emergency evacuation routes are simulated in the campus of Ningbo University of Technology. From the simulation, the length of optimal and worse-case evacuation routes between the starting point and eight exits can be obtained by adjusting the importance value of trip distance and the degree of conformity, under the condition of static relative importance of pheromone concentration to graph G. The optimal route of emergency evacuation in the campus can be obtained when the importance of trip distance is above 5 and the degree of conformity is above 0.3; while the worse-case route is obtained with the importance of trip distance above 5 and the degree of conformity below 0.5.

 

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5. "Analysis of the Aviation Safety Management System by Fractal and Statistical Tools"
Dmytro Bugayko, Оleg Leshchynskyi, Nataliya Sokolova, Volodymyr Isaienko, Zenon Zamiar

World civil aviation is an open-source system that is affected by a large number of related and non-related factors. Aviation safety is one of the prioritized directions in the industry. Its managerial decision-making process is primarily based on a versatile analysis of security data in which the choice of the appropriate mathematical apparatus is fundamental. This article suggests applying fractal-statistical analysis to evaluate the aviation safety management system in terms of determining the random distribution of quantitative dynamics of aircraft crashes with lethal consequences in the period from 1946 to 2017. This allows us to verify the adequacy of probabilistic approaches appliance in analysing the dynamics of aviation disasters. The results of research carried out on the basis of the Hurst exponent have allowed us to conclude that the dynamics of aviation disasters is characterized by the effect of "spatial memory". In other words, these are "hidden laws", for which further investigation can become an effective tool for the development of proactive methods in managing aviation safety.

 

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6. "Measuring Attitudes Towards VR Technology Simulation Training of Train Drivers"
Małgorzata Krystyna Ćwil, Witold Bartnik

This paper presents the results of measurements of attitudes towards a demonstrative virtual-reality railway simulator for eco-driving techniques training. This device has been prepared for InnoTrans 2016 railway trade fair, and during this exhibition 144 railway professionals from 35 countries took part in the simulation and filled a questionnaire about their experience and whether they found this type of simulator a viable choice for railway driver training. The results have been very positive with barely any negative answers. This shows that a VR-based railway simulator could potentially be used as a low-cost solution supporting energy efficient train driving.

 

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7. "The Development of Bike-Sharing Systems in Poland. The Study of Wavelo System in Kraków"
Agnieszka Świgost-Kapocsi

The interest in bike transport in Polish cities and towns has been growing systematically in the recent years. A great number of local authorities take various actions to support the development of cycling systems. They make an effort to develop a cycling infrastructure – bike lanes, Bike&Ride type of parking, bike stands and advanced stop lines. An increased interest in bike-sharing systems is visible as well. Apart from that, the authorities implement policies and take other actions which make cycling in a city more convenient.
The aim of the article is to characterize the experience of Polish cities in the area of bike transport support, with a special attention to bike-sharing systems. The article presents a comparison of 38 city bike systems. In addition, the Wavelo system in Kraków was studied in detail. Wavelo city bike system is very popular among citizens of Kraków. Despite relatively high prices and the lack of free minutes, the number of system users is growing. A large number of docking stations and their locations make bikes more accessible to citizens. Moreover, Kraków's authorities take action to develop a proper bike infrastructure which increases the interest in cycling as a transportation system. Selected methods of constructing special inserts in the transition zones between the embankment of the railway track and the engineering object (bridge, viaduct, or culvert) were discussed. The purpose of mounting the designed inserts is to eliminate the so-called threshold effect, i.e. continuously creating a mild change in the stiffness of the ground under the track. In addition to the solutions presented in practice, attention was also paid to projects developed by the authors of this article. The results of experimental research constituting the basis for the development of some solutions are also given.

 

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8. "Parameter of Cooperation of Composite Components in Views about Vertical Wall from Reinforced Soil"
Zenon Zamiar, Andrzej Surowiecki, Piotr Saska

The publication considers reinforced soil in relation to the construction of retaining walls in communication construction. The basic elements determining the cooperation of reinforcement inserts with the ground centre are discussed, depending on the features characterizing the components of the composite. The method and selected results of tests performed on a massif model with a vertical wall made of non-cohesive ground have been presented. A calculation example is given concerning the internal dimensioning of the reinforcement of the considered massif model, assuming the work of inserts without slipping in the ground centre. The concept of reinforcement co-operation indicator with the ground centre was introduced and a dependence to calculate its value was developed. The values of co-operation indicators: general and partial, concerning individual measurement levels of the model have been presented appropriately.

 

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9. "Ways of Eliminating the Road Effect in Transition Zones from the Railway Track to Bridge Structures"
Zenon Zamiar, Andrzej Surowiecki, Piotr Saska

Selected methods of constructing special inserts in the transition zones between the embankment of the railway track and the engineering object (bridge, viaduct, or culvert) were discussed. The purpose of mounting the designed inserts is to eliminate the so-called threshold effect, i.e. continuously creating a mild change in the stiffness of the ground under the track. In addition to the solutions presented in practice, attention was also paid to projects developed by the authors of this article. The results of experimental research constituting the basis for the development of some solutions are also given.

 

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10. "Education of Logisticians in Poland: Problems and Prospects in Students’ Opinion"
Irena Pawłyszyn, Nina Rizun, Halina Ryzhova

Logistics is one of the key sectors of the Polish economy. Its value reflects not only its own capacity, but also the role it plays in ensuring the proper functioning of the entire economy. The rapid development of the industry and the highest demands on logistics solutions bring to the fore the problem of preparing a new generation of specialists in logistics. That is why the question of compliance to learning expectations of both students and the labour logistics market is so important, as well as the problems of efficiency and adequacy of training provided to students with the knowledge and skills to achieve the desired job, and the opportunities of Polish Universities’ graduates to work abroad. The objective of the paper was to identify the expectations of students who study Logistics at the Faculty of Engineering Management, Poznan University of Technology.

 

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