This article is devoted to the coordination of single stages of the multimodal delivery process, taking into account the fact that the process is discrete in its content. The tact, which has the content of a time window for performing the operation is used for discrete processes. Due to the fact that multimodal transportation of goods is carried out on a large network, time is one of the most important criteria for their perfection. Two timing criteria are applied in the article, which take into account the fact that the multimodal process must be synchronized and that the transportation of a large group of goods can be carried out in separate parts. An estimation criterion was also applied, which takes into account constant, variable, contingent costs, which are carried out depending on the structure of the process. The goal of the study is to create such multimodal cargo delivery routes that are characterized by the highest level of selection criteria. In contrast to known studies, the dependence of the optimization criteria of the multimodal process on the total volume of cargo delivery was shown. The method of analyzing the transport scheme of multimodal transportation and the corresponding algorithm and computer program were developed. The methodology involves a complete review of all possible route options using three types of continent transport, namely road, rail, and river. The method of structural optimization is applied to the example of a transcontinental transport corridor.
In the process of long-distance and large-volume transportation of hazardous materials (HAZMAT), multimodal transportation plays a crucial role with its unique advantages. In order to effectively reduce the transportation risk and improve the reliability of transportation, it is particularly important to choose a suitable transportation plan for multimodal transport of HAZMAT. In this paper, we study the transportation of HAZMAT in multimodal transport networks. Considering the fluctuation in demand for HAZMAT during the actual transportation process, it is difficult for decision makers to obtain the accurate demand for HAZMAT orders in advance, leading to uncertainty in the final transportation plan. Therefore, in this paper, the uncertain demand of HAZMAT is set as a triangular fuzzy random number, and a multi-objective mixed integer linear programming model is established with the objective of minimizing the total risk exposure population and the total cost in the transportation process of HAZMAT. In order to facilitate the solution of the model, we combined the fuzzy random expected value method with the fuzzy random chance constraint method based on credibility measures to reconstruct the uncertain model clearly and equivalently, and designed a non-dominated sorting genetic algorithm (NSGA-Ⅱ) to obtain the Pareto boundary of the multi-objective optimization problem. Finally, we conducted a numerical example experiment to verify the rationality of the model proposed in this paper. The experimental results indicate that uncertain demand can affect the path decision-making of multimodal transportation of HAZMAT. In addition, the confidence level of fuzzy random opportunity constraints will have an impact on the risk and economic objectives of optimizing the multimodal transportation path of HAZMAT. When the confidence level is higher than 0.7, it will lead to a significant increase in transportation risks and costs. Through sensitivity analysis, it can provide useful decision-making references for relevant departments to formulate HAZMAT transportation plans.
This article stresses the need to develop multimodal passenger transport. Particular attention is paid to the construction of HUBs based on railway stations. HUB is the transport interchange node, passenger complex, which redistributes passenger flows between transport modes and directions. They allow to optimize transportation processes, as well as to create an infrastructure for convenient and fast passenger transfer between different transport modes. The preconditions for creating organizational conditions to ensure the sustainable development of the passenger railway transport sector are outlined. In the near future, combined passenger transport with the participation of several modes of transport will attract tourists from around the world. The authors’ concept of the term “passenger comfort zone” is proposed, which takes into account all the needs of modern tourists. The mechanism of multimodal transportations of passengers by railway transport in interaction with other participants of the servicing process is presented. A model of institutional support for the development of multimodal passenger railway transport is proposed to create conditions for integrated transport services for passengers by the passenger railway transport complex. The expediency of forming a system of railway passenger HUBs in Ukraine is vital to attracting investments to improve transport and tourism infrastructure, as well as to roll stock and a range of services for the benefit of all stakeholders in the transport sector (e.g., the state, investors, and passengers).
Relevance of the study: As the experience of advanced countries shows, the development of the economy in our country, in particular, in the transportation services market, is associated with the development of interaction between all types of transport. Thus, in modern conditions, for the growth of the role of railway transport, multimodal transportation, which is important for the interaction of Ukraine with the countries of Europe and the East, is becoming important and will also help minimize costs and preserve the environment. Therefore, the issues of evaluating the introduction of multimodal transportation with logistic principles are discussed in the article. It is shown how to determine the marginal substitution rate in the conveyance type while using various modes of transport, based on the utility function and transportation costs. Purpose of the study: The purpose of the article is to develop measures to improve the functioning of parts in multimodal freight delivery routes by minimizing transportation costs, taking into account quality indicators. For this purpose, the following tasks have been set and are being solved: to develop a model for evaluating the efficiency of using different modes of transport with optimal costs; to choose a method for estimating the optimal delivery route and freight volumes; to evaluate the efficiency of transportation technology based on a qualimetric indicator. Approaches: An approach to a comprehensive evaluation of the effect from the activities of transport enterprises in multimodal transportation based on cost optimization, with the qualimetric indicator, and aimed at maximizing the satisfaction of shippers' requirements is offered when determining the route of such transportation parameters as the cost and the quality of freight delivery. Results: The results of the theoretical generalization and analysis of approaches to the formalization of the functioning process in multimodal transportation systems for the delivery of goods by rail and road modes of transport are presented in the article. The significance of the results. The materials in the article are of practical value for employees of transport and logistics companies and enterprises, scientists, and pedagogical workers to improve their professional level.
The multimodal transportation of transit cargo is suitable for implementation through Bulgaria in the East-Northwest direction through the sea and river ports of the country as an alternative to the Romanian and Greek routes. Among the multimodal routes with a land leg through Bulgaria used and known so far, those via two seaports (Burgas and Varna) and three river ports (Ruse, Svishtov and Vidin) are most suitable. An expert evaluation methodology for selection of the most appropriate route is developed, including the Delphi method. A survey was conducted among 11 highly ranked and internationally recognized Bulgarian experts, known for their exceptional experience in the field of freight forwarding and international cargo transportation through Bulgaria. The results of the study show that the most suitable route for transit transportation is through the ports of Varna and Ruse with intermediate road haulage.
The paper regards a specific class of optimization criteria that possess features of probability. Therefore,constructing objective functionof optimization problem,the importance is attached to probability indices that show the probability of some criterial event or events to occur. Factor analysis has been taken for the main method of constructing objective function. Algorithm for constructing objective function of optimization is donefor criterion of minimization risk level in multimodaltransportations that demanded demonstration data. The application of factor analysis in classical problem solution was shown to givethe problem a more distinct analytical interpretation in solving it.
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Artykuł dotyczy szczególnej klasy kryteriów optymalizacyjnych, które posiadają cechy prawdopodobieństwa. W związku z tym, przy konstruowaniu funkcji celu problemu optymalizacyjnego pierwszorzędne znaczenie mają wskaźniki prawdopodobieństwa wystąpienia określonego zdarzenia lub zbioru zdarzeń. Jako główną metodę konstruowania takiej funkcji celu wybrano analizę czynnikową. Algorytm konstrukcji funkcji celu optymalizacji wykonano dla kryterium minimalizacji poziomu ryzyka w przewozach multimodalnych –w tym celu wykorzystano dane demonstracyjne. Wykazano, że zastosowanie analizy czynnikowej w klasycznym sformułowaniu problemu badawczego pozwala nadać mu bardziej wyrazistą interpretację analityczną w jego rozwiązywaniu.
In the urban transportation network, most passengers choose public transportation to travel. However, bad weather, accidents, traffic jams and other factors lead to uncertainty in transportation network. Besides, transport vehicles running on the same segments of routes and belonging to different modes or routes make the transportation network more complicated. In order to improve the efficiency of passenger’s travel, this paper aim to introducing an approach for optimizing passenger travel routes. This approach takes the travel cost and the number of transfers as constraints to finding the shortest total travel duration of passenger in urban transportation network. The running duration and dwell duration of the vehicles in the network are uncertain, and the vehicles are running according to the timetables. As transportation modes, bus, rail transit and walk are considered. In terms of methodological contribution, this paper combines Genetic Algorithm (GA) and Monte Carlo simulation to deal with optimization problem under stochastic conditions. This paper uses Monte Carlo simulation to simulate the running duration and dwell time of vehicles in different scenarios to deal with the uncertainty of the network. The shortest path of passenger’s travel is solved by GA. Two kinds of population management strategies including single population management strategy and multiple population management strategy are designed to guide the solution population evolving process. The two kinds of population management strategies of GA are tested in numerical example. The satisfactory convergence performance and efficiency of the model and algorithm is verified by the numerical example. The numerical example also demonstrated that the multiple population management strategy of GA can get better results in a shorter CPU time. At the same time, the influences of some significant variables on solution are performed. This paper is able to provide a scientific quantitative support to the path scheme selection under the influence of common-lines and timetables of different modes of transportation in stochastic urban multimodal transportation network.
Celem artykułu jest wskazanie i określenie ról głównych in- teresariuszy mających wpływ na rozwój multimodalnego transportu towarowego. Podstawę wnioskowania stanowią wyniki Projektu ChemMultimodal zrealizowanego w latach 2016–2019 w regionie Europy Środkowej. W Projekcie wyko- rzystano ilościowe i jakościowe metody badawcze: badanie ankietowe, pogłębione wywiady indywidualne oraz studia przypadków. Wyniki badań na przykładzie branży chemicz- nej doprowadziły do konstatacji o konieczności holistyczne- go podejścia w dążeniu do wzrostu znaczenia transportu multimodalnego w przewozach ładunków. Wymaga ono in- tegracji strategii, celów i działań kluczowych interesariuszy. Do interesariuszy tych należą: instytucje określające strate- gie i regulacje w zakresie polityki transportowej oraz planu- jące i finansujące inwestycje na poziomie Unii Europejskiej, krajowym i regionalnym, ogniwa łańcuchów dostaw, przed- siębiorstwa produkcyjne i handlowe oraz uczestnicy rynku usług TSL, a także klastry i izby przemysłowe.
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The aim of the article is to identify and define the roles of the main stakeholders that influence the development of multimodal freight transport. The conclusions are based on the results of the ChemMultimodal Project implemented in 2016–2019 in the Central Europe region. The Project team used quantitative and qualitative research methods: survey, in-depth individual interviews and case studies. The research findings on the example of the chemical industry led to the conclusion of the need for a holistic approach in the pursuit of increasing the significance of multimodality in cargo transportation. It requires integration of strategies, objectives and activities of key stakeholders. These stakeholders include: institutions that define strategies and regulations in the field of transport policy, plan and finance investments at the EU, national and regional level, links of supply chains, manufacturing and trade companies, logistics service providers as well as clusters and chambers of industries.
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Background: To fight against climate change, the EU is committed to the world's most ambitious climate and energy targets, i.e. CO2 reduction at least 20% by the year 2020 and 80-95% by 2050, in reference to 1990. This paper aims to look at the problem of freight transport emissions' measurement and management in order to reduce CO2. The focus is on the chemical industry itself. The authors try to answer following research questions: (i) Do chemical and logistics companies in Poland measure and manage freight transport emissions? (ii) Where do they see the biggest challenges to emissions' management and how do they address them? (iii) Is a toolbox facilitating modal shift able to increase the usage of multimodal transport by chemical and logistics companies? Methods: The research problem is investigated using a two-stage effort. Stage one is structured, in-depth interviews conducted among chemical and logistics companies operating in Poland. The results of this stage have provided the base for the toolbox developed to facilitate the modal shift in chemical transports. Stage two presents the results of the toolbox's beta-version tests conducted among chemical companies in Poland in 2017. Results: Within the findings, the authors diagnose the obstacles which prevent companies from multimodal transport, and present toolbox consisting of: consulting services, multimodal planning guidelines, IT visualization, and CO2 calculator. The toolbox facilitates transport partners' cooperation on shifting chemical freight from road to multimodal. Conclusions: With technological developments, which strongly influence shippers and transport providers and offer improvement opportunities in efficient transport management, the topic of freight transport emissions' measurement and management in order to reduce CO2 should be investigated in more detail.
PL
Wstęp: Chcąc walczyć ze zmianami klimatycznymi, UE zobowiązała się do realizacji ambitnych celów klimatycznych i energetycznych, tj. redukcji CO2 o co najmniej 20% do 2020 roku i 80-95% do 2050 roku, w odniesieniu do 1990 roku. Celem tego artykułu jest spojrzenie na problem pomiaru i zarządzania emisjami w transporcie towarów w celu ograniczenia emisji CO2. Artykuł koncentruje się na przemyśle chemicznym. Autorzy starają się odpowiedzieć na następujące pytania badawcze: (i) Czy firmy chemiczne i logistyczne w Polsce mierzą i zarządzają emisjami transportu towarowego? (ii) Gdzie widzą największe wyzwania związane z zarządzaniem emisjami i jak je adresują? (iii) Czy zestaw narzędzi ułatwiających zamianę gałęzi transportu, przyczyni się do zwiększenia wykorzystania transportu multimodalnego przez firmy chemiczne i logistyczne? Metody: Problem badawczy jest analizowany dwustopniowo. Pierwszy etap to ustrukturyzowane, pogłębione wywiady przeprowadzone wśród firm chemicznych i logistycznych działających w Polsce. Wyniki tego etapu posłużyły do przygotowania narzędzia ułatwiającego zamianę gałęzi transportu chemicznego. Drugi etap prezentuje wyniki testów beta wersji narzędzia wspierającego zamianę transportu drogowego chemii na transport multimodalny, które to testy przeprowadzono wśród firm chemicznych w Polsce w 2017 roku. Wyniki: Autorzy dokonali diagnozy przeszkód uniemożliwiających firmom transport multimodalny oraz przygotowali i przedstawili narzędzie obejmujące: usługi konsultingowe, wytyczne do zmiany gałęzi, wizualizację IT rozwiązania multimodalnego oraz kalkulator CO2. Celem narzędzia jest ułatwienie współpracy partnerów w zakresie zamiany transportu drogowego towarów chemicznych na transport multimodalny. Wnioski: Ze względu na zmiany technologiczne, które mają znaczny wpływ na załadowców i dostawców usług transportowych oraz oferują możliwości usprawnienia zarządzania transportem, należy bardziej szczegółowo zbadać kwestię pomiaru i zarządzania emisjami transportu towarowego w celu ograniczenia emisji CO2.
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Tematyka dostępności coraz częściej staje się tematem dyskusji i prac na różnych szczeblach administracji rządowej i samorządowej. Wpływ na popularność tematu mają przede wszystkim ogłoszenie rządowego projektu Dostępność Plus wraz z Porozumieniem na rzecz dostępności oraz przewidywane zmiany w prawie na szczeblu unijnym – projektowane wdrożenie Europejskiego Aktu Dostępności oraz planowana nowelizacja Rozporządzenia 1371/2007, będącego odpowiednikiem rozporządzenia 181/2011 w sprawie praw pasażerów w transporcie autobusowym i autokarowym. Prezentacja tych zagadnień jest przedmiotem niniejszego artykułu.
EN
Availability of transport is becoming the topic of discussion and thesis on the various levels. Impact on the popularity of the topic are result of announcement of governmental projects „Dostępność Plus” and „Porozumienie na rzecz dostępności”, and also expected changes in EU law – project of European Accessibility Act and novelization of Regulation (EU) No 1371/2007, equivalent of Regulation (EU) No 181/2011, passenger rights in bus and coach transport. The issues has been presented in this article.
The main goal of this paper is to provide an original model of selecting multimodal technologies for the transport of perishable goods. The model in particular refers to the transportability of cargoes. The features of cargoes that have the most impact on transportability were specified. Formal representations of the key elements of the model were presented and characterized, including: perishable cargoes, form of transported goods (solid, liquid, etc.), means of handling (including loading devices and transport means), transport routes, categories of human labor, multimodal technologies and transportation tasks. A formal representation of decision variables, as well as constrains and a criterion function were provided. The model bases on two main solution assessment criteria: cost criterion and cargo safety criterion. A cargo safety criterion in the model is composed of 18 partial criterion functions. Each of these functions directly affects one safety aspect of the transported cargo. The exemplary partial criteria of cargo safety included in the model are: acceptable transport time, minimum or maximum temperature in the cargo’s direct surroundings, resistance to mechanical damage. In order to present a practical application of the presented mathematical model the paper shows also an example of selecting one of the multimodal technologies for the transport of perishable goods from the set of pre-defined types of multimodal transport technologies. The developed method uses different elements of the mathematical model provided in the paper, depending on the considered problem (including characteristics of cargo and their transport forms). For a significant group of perishable cargoes, it is not required to consider all defined criteria associated with cargo safety. The developed model allows for the accurate selection of transport technology for perishable cargoes for most transportation tasks. It should help to increase the efficiency of selection of multimodal transport technology for perishable products. The selected technology will then be characterized by the lowest transport cost and will ensure the safety of transported cargoes, as well as will meet other requirements determined by the transport task. As part of further work, it is possible to develop proposed method by considering additional characteristics of perishable cargoes.
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Background: In the last decade, the total volume of freight transport has grown, partly due to the transportation of consumer goods. Multimodal transportation has been named in various publications as a solution. As a landlocked country in the middle of Europe, Austria has to bear more negative consequences of freight transport than other European countries. This study analyses the present situation of Austria's freight transport systems and compares it with the other 27 EU countries. This paper also looks for new methods in logistics, to get the problem of increasing demand for transport under control. On this basis, this paper tries to make recommendations for strategic future transportation development in the country. Methods: This study is based on the analysis of both scientific literature, and on official publications of the logistics sector in Austria. Publications of European and Austrian statistical material have been used to compare the transport situation in the other European Union member states and Austria. Results: Austria's usage of railways is already above average in the EU. On the other hand, waterway transport is below average. Intelligent exploitation of the River Danube could induce an important shift from road transport to cheaper and more environmental friendly river transport. New ways of managing traffic flow and increasing road safety are under development in logistics, although their implementation depends on the costs incurred. Conclusion: By shifting a proportion of road transportation onto Austria's main waterway, the River Danube, pressure on the environment and traffic flow could be improved to a certain extent. The digitalization of logistics and the introduction of computer-driven road transportation systems, such as platooning and autonomous driving, and multimodal transportation may be useful ways to relieve the situation on the main roads, and to prevent an increase in traffic jams, exhaust emissions and the risk of accidents. Further research and practical tests will be necessary to reach market readiness and cost efficiency.
PL
Wstęp: W ostatnich latach obserwuje się znaczący wzrost przewozu dóbr, głównie konsumpcyjnych. Jak rozwiązanie tego zagadnienia w wielu publikacjach wskazuje się transport multimodalny. Austria, będąca krajem śródlądowym, szczególnie dotkliwie odczuwa negatywne skutki transportu lądowego w porównaniu do pozostałych krajów europejskich. Praca obejmuje analizę aktualnej sytuacji austriackiego transportu dóbr materialnych w porównaniu do 28 krajów UE. Poddano również analizie nowe rozwiązania transportowe, służące lepszej kontroli sytuacji transportowej. Na bazie tej analizy wysunięto rekomendacje dla rozwoju strategicznego transportu w tym kraju. Metody: Podstawą analizy był przegląd porównawczy literatury fachowej dotyczącej sektora logistycznego w Austrii. Materiały statystyczne autorstwa austriackiego i europejskiego posłużyły dla analizy porównawczej sytuacji transportowej w Austrii i Unii Europejskiego. Wyniki: Użytkowanie dróg kolejowych w Austrii jest wyższe od średniej UE28. Z drugiej strony użytkowanie dróg wodnych jest poniżej tej średniej. Odpowiednie użytkowanie do celów transportowych rzeki Dunaj mogłoby istotnie odciążyć transport lądowy jako tańszy oraz bardziej zrównoważony. Nowe rozwiązania transportowe umożliwiając poprawę bezpieczeństwa na drogach, aczkolwiek realizacja proponowanego rozwiązania zależy od kosztów, jakie będą one generować. Wnioski: Poprzez przesunięcie części transport drogowego na główną drogę wodną Austrii, rzekę Dunaj, zmniejszą się w pewnym zakresie problemy zatłoczenia na drogach i jego wpływu na środowisko. Digitalizacja logistyki, wprowadzenie systemów transportowych opartych na rozwiązaniach komputerowych typu platooning, samochody autonomiczne czy transport multimodalny, mogą się pozytywnie przyczyniać do polepszenia sytuacji na drogach, obniżenia poziomu zatłoczenia oraz emisji spalin, jak również zwiększenie bezpieczeństwa na drogach. Należałoby kontynuować te badania w celu doprecyzowania gotowości na nie rynku oraz efektywności kosztowej proponowanego rozwiązania.
W ostatnich latach, w krajach średnio- i wysokorozwiniętych, wzrasta znaczenie transportu multimodalnego. Obok komunikacji publicznej, rower stanowi jego istotne ogniowo. Pociąga to za sobą rozwój infrastruktury przeznaczonej dla rowerzystów, a także ich udział w przestrzeni miejskiej. Celem niniejszego artykułu jest przedstawienie i przeanalizowanie nowych projektów oraz koncepcji rowerowych systemów transportowych. Analiza przeprowadzona została pod kątem korzyści dla rowerzystów, a także związanych z tymi inwestycjami korzyści i zagrożeń dla transportu publicznego i pieszego. Przeprowadzone studia mają za zadanie wskazać kierunki przekształceń rowerowej infrastruktury korzystne dla większości uczestników ruchu w mieście, co powinno być pomocne przy świadomym projektowaniu.
EN
In the recent years, increasing popularity of multimodal transport is observed in high and medium developed countries. Besides public transport, bicycles are the key element in that form of communication mobility through urban areas. Their growing importance brings development infrastructure for cyclists and their more visible participation in public space activities. The main aim of this paper is presentation and analysis of new projects and concepts of bicycle transport systems. This analysis includes reveal the benefits for cyclists and points advantages and disadvantages for pedestrians and public transport. Proposed studies will show directions of future transformation of bicycle infrastructure favorable for the most of city's users.
Podczas gdy samo zagadnienie dotyczące integracji transportu rowerowego i szynowego jest dosyć dobrze opracowane, wciąż brak usystematyzowanej wiedzy na temat wpływu obecności roweru na kształtowanie przestrzeni publicznych, w tym tych w okolicy dworców kolejowych. Wybrane przykłady pokazują, że mariaż roweru z pociągiem lub metrem w ujęciu urbanistyczno architektonicznym może stać się czynnikiem popularyzującym transport łączony. Możliwe jest łączenie utylitarnej funkcji trans portowej z atrakcyjną przestrzenią placu, a infrastruktura rowerowa często znacząco się do tego przyczynia.
EN
The main aim of this paper is to analyse forms of chosen bicycle parks in the context of railway station plazas. When many scientific texts deal with integration rail and bicycle transport, there is still lack in knowledge about creating urban spaces by bicycles. It turns out that it is possible to linking utilitarian transport function with attractive plaza space, and bicycle infrastructure have important role in this transformation. Investigated examples show that bicycle dedicated facilities can enrich and improve stations forecourts. They make station plazas not only functional and nice place to go, but also a kind of entertaining playground for travellers (e.g. Groningen, Lillestrøm). Moreover, exposed, large bicycle parks (up to 3 000 spaces) can act like an attractive and interactive part of fore courts (Copenhagen, Amsterdam). Cyclist dedicated facilities can also create plaza frontages by filling in difficult plots or give character to the entire place (Asker, Alphen aan den Rijn). Bicycle parks occupy less precious urban space than car ones and are easier and more affordable. As a result, it can contribute to the raise of quality of sometimes grim station surroundings and above all, promote multimodal transport by their extravagant architectural form.
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