Wyniki wyszukiwania - BazTech

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Resistance and safety of the railway transport system in the context of disruptions occurring during rail freight transportation

Szaciłło Lucyna, Krześniak Mirosław, Zgorzelski Rafał, Lasota Michał, Franke Piotr

Transport Problems

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2024

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T. 19, z. 2

191--204

EN

This article presents an approach to planning rail freight transport taking into account the disruptions that occur during their implementation. The issues raised are related to the multi-aspect perception of factors influencing the organization of transport, in which immunity and safety play significant roles. The authors present an analysis of disruptions relating to the causes and effects of adverse events for selected traffic and operational parameters, including delays of freight trains in Poland from 2019-2022. The analysis of adverse events (accidents and serious accidents) in the rail transport system made it possible to present the rates of accidents when crossing tracks in prohibited places, at crossings on the public and separate networks, related to signals passed at danger events, and related to track works and the technical condition of rolling stock. In the case of the effects of adverse events, a rate was determined for freight train delays. The authors also developed a method for determining the value of disruptions in rail freight transport. A case study containing disruption quantification for a given freight train route is presented. The article emphasizes that a significant challenge in the rail transport sector is the proper organization of the operational activities of railway carriers concerning disruptions occurring during transport.

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Multifaceted decision support analysis of risk assessment in the process of transporting feed by rail transport using the FMEA method

Krześniak Mirosław, Szaciłło Lucyna

Prace Naukowe Politechniki Warszawskiej. Transport

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2023

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z. 137

115--131

EN

The article presents selected aspects regarding transporting goods intended for animal feeding. The transport of this type of cargo must meet trade safety requirements and be monitored at every stage of the transport chain. The safety of transport of this type of goods is given priority because possible contamination of feed could affect the quality of food products and threaten human health. The authors referred to the reasons for creating an international procedure regarding, among others, the transport of this group of goods, limiting the risks mentioned above. The proposed procedure is a response to various incidents of feed contamination. It was introduced as an internal system and then developed internationally. The article points to the multi-threaded nature of topics related to the risk management process during the transport of feed intended for animal feeding by rail. This article presents an approach to this issue that considers a multi-aspect analysis of decision support. Risk assessment in transporting feed by rail is an essential factor influencing safety in trade. The article presents the FMEA method, which enables decision support analysis considering non-compliance risk. The recommended method that enables the examination of transport processes for this group of goods is the analysis of the types and effects of possible errors. The task solved using the FMEA method is fed by historical data, the transport task, and the FMEA methodology. Three elements are analyzed - the significance of non-compliance, the risk of non-compliance, and the possibility of detecting non-compliance. They enable quantification and determination of a risk priority number. If the acceptable risk level is exceeded, changes are made to the transport task. The article broadly refers to aspects of risk analysis, which allows you to manage the transport process.

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Business environment of rail transport in the context of the value chain

Krześniak Mirosław, Jacyna Marianna, Pryciński Piotr, Murawski Jakub, Bańka Michał

Zeszyty Naukowe. Transport / Politechnika Śląska

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2022

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z. 116

179--195

EN

The value chain can be defined as a set of all processes and procedures necessary to deliver a product or service to the end-user through various stages of development. A concept of the value chain is essential in the context of transport, as the transport process is usually one of the last elements of the value chain and determines the final value of a product or service offered. In recent years, the domestic and international rail transport market has undergone significant changes, including ongoing globalisation processes, growing importance of international trade, increase in intermodal transport significance, numerous investment outlays in transport infrastructure, means of transport, and the area of rail transport interoperability. All the above-described aspects have an impact on the value chain in transport. This paper presents an analysis of the value chain in transport processes in an aspect of rail transport. Elements of the railway transport organisation process, which affect the entire value chain, were briefly characterised in this article. Moreover, based on statistical data and a literature review, factors that fundamentally impact the efficient organisation of rail transport processes were identified.

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Technical, legal, and business conditionings of the functioning of rail operators in the freight transport market

Krześniak Mirosław, Jacyna Marianna, Wasiak Mariusz, Lasota Michał, Wawryszczuk Róża

Prace Naukowe Politechniki Warszawskiej. Transport

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2022

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z. 135

101--114

EN

In the article, the authors presented the technical, technological, legal, and business conditions of the functioning of rail freight transport in the international transport market. The authors analyzed the literature, considering this area's most important national and international normative documents. An essential element of the considerations is the presented schematic concepts of models for various forms of rail freight transport. The main ways of organizing freight transport at the eastern border were also indicated. The reasons for barriers that negatively affect the competitiveness of rail transport with other modes of transportation, especially in international transport, were shown. The rail transport market has undergone many changes recently, including investments in railway infrastructure, the growing importance of intermodal transport, and support for a more sustainable transport system. The article indicates the reasons for the occurrence of barriers that negatively affect the possibilities of further development of railways and the competitiveness of rail transport with other modes of transportation, especially in international transport.

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The use of the risk matrix method for assessing the risk of implementing rail freight services

Szaciłło Lucyna, Krześniak Mirosław, Jasiński Dobromir, Valis David

Archives of Transport

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2022

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Vol. 64, iss. 4

89--106

EN

The article presents a proposal for the use of a risk matrix for assessing the safety of the implementation of rail freight transport. The starting point for considerations related to risk assessment is the conditions arising from the business need and the obligation of entities operating in the railway market to ensure the safety of the implementation of freight tasks. The authors presented selected literature within the framework of the issues discussed. The layers of risk assessment, which include the analytical layer, the decision layer and the elimination layer, indicate the possibility of considering the problem of risk assessment from different perspectives. The identification of direct causes and consequences of undesirable events during the implementation of rail freight transport was also made. The article describes one of the methods of risk management which is the risk matrix. The authors stressed that the construction of a risk matrix should be preceded by an analysis of the factors that affect the safety of rail transportation. This is possible by determining their probability of occurrence and setting values for the consequences of adverse events. The article divides the assignment of levels of adverse events to a five-level risk matrix (slight, low, medium, high, very high). Also presented is a case study considering the risk assessment of rail freight transport in Poland using the risk matrix method for railway accidents in the area of railway lines. Thanks to the development of the risk matrix, a risk management strategy can be used. The last part of the article is a summary, which highlights the possibility of applying the presented approach to risk assessment among entities operating in the rail transport market.