Summary. The programing documents of the European Union determine the direction of transport systems development, including large cities and agglomerations. The context of these actions which aim to transform into ecologically clean and sustainable transport system is a significant reduction of greenhouse gas emissions. Assuming that public transport will significantly reduce the use of combustion-powered buses, studies on urban logistic enabling the use of electric buses for public transport are needed. The article presents the variants and scenarios for electric buses implementation in urban public transport, as well as the decision algorithm to support electric bus implementation based on technological, organisational, economic and ecological variables.
TRANSPORT PUBLICZNY W AGLOMERACJACH Z WYKORZYSTANIEM AUTOBUSU ELEKTRYCZNEGO -TENDENCJE ROZWOJUStreszczenie. Dokumenty programowe Unii Europejskiej wytyczają kierunki rozwoju systemu transportowego także w dużych miastach i aglomeracjach. Kontekstem tych działań, mających na celu przemianę systemu transportowego w transport ekologiczny i zrównoważony, jest znaczące ograniczanie emisji gazów cieplarnianych. Zakładając, że w transporcie publicznym nastąpi znaczne ograniczenie wykorzystania autobusów z napędem spalinowym, niezbędne są badania nad logistyką miejską, umożliwiające wykorzystanie autobusów elektrycznych do transportu publicznego. W artykule przedstawiono warianty i scenariusze wdrażania autobusów elektrycznych w publicznym transporcie zbiorowym oraz zaprezentowano algorytm wsparcia decyzji na podstawie zmiennych technicznych, organizacyjnych, ekonomicznych i ekologicznych.
Conversion of the bus fleet with conventional propulsion (Diesel or hybrid engines) to electric drive is a process that many cities in Poland face. Decision-makers, who influence these activities have to define an exchange strategy at the first step, defining min. time spent on exchange, the course of this process and financial resources needed at a specific time. Before making such a decision, they can be supported by various tools that will include the results of the currently realized PLATON project. The aim of this project is to define the process of planning the conversion of the existing fleet of conventional buses in public transport to 100% share of electric buses, and the implementation of this process as an IT tool, widely available in the Internet. The article describes the factors that may affect the exchange process in five areas: political, economic, ecological, social and technical-organizational ones. These factors are the components of the model that maps the fleet conversion process.
The article presents the dilemmas of choosing the right methodical instruments, that should support the process of converting the fleet of city buses from the conventional one to the electric powered. This process should be scientifically supported in all these dimensions, which serve various stakeholders involved in this problem. The authors presented the general structure of the fleet conversion problem, the necessary submodels and proposed a description method in the form of a process convention and in a system-functional approach, as well as they proposed IT support for the modelling itself and the process of conversion.
The article presents threats related to broadly understood cybersecurity, encountered in modern public transport, especially in cases of increasingly introduced Intelligent Transport Systems (ITS). Experience to date has shown strong links between the technical sphere and IT system of public transport, ensuring its protection against unwanted externa l interference from people (or organizations) trying to disrupt its functioning. The following - inter alia - are of a key importance: the system of existing bus network as well as organization of bus work on routes (schedule) and its IT links, monitoring and system protection against external interference. The main goal of cybersecurity in public transport is to increase the level of cybersecurity in city agglomeration by increasing the availability of hardware and IT tools, included in intelligent transport systems, protecting safety and reliability of operation of public transport.
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