scholarly journals Characteristics of event recorders in Automatic Train Control systems

2018 ◽  
Vol 46 (2) ◽  
pp. 61-70 ◽  
Author(s):  
Marianna Jacyna ◽  
Emilian Szczepański ◽  
Mariusz Izdebski ◽  
Sławomir Jasiński ◽  
Mariusz Maciejewski

The development of railway transport in the current times is very noticeable, it is connected with the growing needs of movement as well as the development of information engineering. The increase in the demand for transport requires the implementation of solutions that increase the efficiency of the transport system. Both long-distance, agglomeration and metro railways can use different systems due to their specificity. Nevertheless, there is a noticeable trend in the development of systems supporting or even replacing the driver by the automation of selected activities. Such systems allow to reduce trains headway and thus increase the capacity of the line. CBTC class systems (Communications-based train control) belong to automatic train systems and are based on wireless transmission. The main purpose of using such systems is to increase the frequency of running trains while maintaining the level of safety. Computers that are on the system equipment record, process and analyse very large amounts of data. An essential element of such systems are recording units. The parameter recorders can be divided into technical and legal ones. However, for CBTC class systems, there is no obligation or requirement to use legal recorders as it is in the case of ETCS. However, it is necessary to use event recorders, and these are subject to the requirements set out in the PN-EN 62625-1: 2014 standard. The recorders are a very important component of safety systems, which is why they were analysed in this article. Both the driver, the vehicle and the infrastructure should be subject of continuous monitoring. The occurrence of an adverse event (not necessarily leading to an incident or accident) should be analysed and used to improve safety procedures. Currently, automatic systems are still developing and we are not able to accurately assess what the causes and effects of certain events may be, which is why data collection and analysis is particularly important. The article presents the general specification of the CBTC system. The parameters and properties of driving recorders should be presented. This article is co-financed by the European Union POIR.01.01.01-00-0276/17

Mekatronika ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 52-62
Author(s):  
Kwai Yang Sak ◽  
Ahmad Najmuddin Ibrahim

Long Range (LoRa) is a wireless radio frequency technology under the Low Power Wide Area Network (LPWAN). LoRa is able to communicate long range and low energy consumption. The communication range has become an essential element in the wireless radio frequency technology in the Internet of Things (IoT). The presence of LoRa is able IoT application performs in long communication distances with high noise sensitivity ability. People can operate, monitor, and do a variety of tasks from a remote distance. Therefore, this research aims to evaluate the performance of the LoRa connection between radio transceivers in remote locations. The different environment and structural elements affect the LoRa performance. This thesis will be supported by the experiment that LoRa communication in different environments and tests. This experiment tests in line of sight (LOS) and non-line of sight (NLOS). Two sets of LoRa parameters, including Spreading Factor (SF), Bandwidth, and coding rate, are tested in different environments. The experiment tests the LoRa performance in various aspects: received signal strength indicator (RSSI) and packet received ratio (PPR) at different coverage ranges. In addition, the LoRa performance is evaluated in university, residential areas and vegetation areas under similar temperature, weather, and time. The LoRa coverage distance in the vegetation area and university area is reached 900 meters in the LOS test. Still, the vegetation area's signal is more stable and able to receive weaker RSSI signals. The LoRa coverage distance in the NLOS test is shorter compared to the LOS test. NLOS test has only one-third of the LOS LoRa communication distance. It is due to the signal penetration on structural elements such as buildings and woods cause the signal power loss and only transmitting a shorter distance. The LoRa parameter with SF9, 31.25kHz bandwidth and 4/8 coding rate has a better coverage range and stable connection.


Author(s):  
Karol Lange

The article focuses on discussing the norms of Polish transport law and European Union regulations on the correctly defined of the moment and form of concluding a contract of passengers transport in railway systems. The article also describes the problem of discourse between the content of these legal norms and the jurisprudence practice and doctrine opinion. Moreover, was performed to present a comparative analysis of the relation of the Court of justice of the European Union judgment to the norms of Polish and European law and the case law. Commented on the practices of carriers in regulating the said matter. Internal law acts applicable to the means of transport of Polish railway companies were also analyzed. Keywords: Transport law; Contract of passenger transport; European Union law; Railway transport


2013 ◽  
Vol 4 (3) ◽  
pp. 23-48 ◽  
Author(s):  
Jerzy Ząbkowicz

Services of general interest form an essential element of the European model of society as a way to increase quality of life and to overcome social exclusion and isolation. They are also at the core of the public debate touching the central question of the role public authorities and the institutions of the European Union play in a market economy. The competencies and responsibilities conferred by the Treaty, the EU regulations and directives lay emphasis on the essential role and the wide discretion of national, regional and local authorities in defining, organizing, financing and monitoring services of general interest. The same time the EU Law provide the European Commission with a wide range of means of action to ensure the compliance of the process of organizing and financing such services according to a comprehensive regulatory regime at Community level to make them compatible with the internal market and to prevent a distortion of the competition rules. The paper indicates divergences of the points of view of public authorities and the Commission on their role, shared responsibility and powers in that process.


2013 ◽  
Vol 2 (1) ◽  
Author(s):  
Andreas Hadjigeorgiou ◽  
Elpidoforos S. Soteriades ◽  
Anastasios Philalithis ◽  
Anna Psaroulaki ◽  
Yiannis Tselentis ◽  
...  

This paper is a comparative survey of the National Food Safety Systems (NFSS) of the European Union (EU) Member-States (MS) and the Central EU level. The main organizational structures of the NFSS, their legal frameworks, their responsibilities, their experiences, and challenges relating to food safety are discussed. Growing concerns about food safety have led the EU itself, its MS and non-EU countries, which are EU trade-partners, to review and modify their food safety systems. Our study suggests that the EU and 22 out of 27 Member States (MS) have reorganized their NFSS by establishing a single food safety authority or a similar organization on the national or central level. In addition, the study analyzes different approaches towards the establishment of such agencies. Areas where marked differences in approaches were seen included the division of responsibilities for risk assessment (RA), risk management (RM), and risk communication (RC). We found that in 12 Member States, all three areas of activity (RA, RM, and RC) are kept together, whereas in 10 Member States, risk management is functionally or institutionally separate from risk assessment and risk communication. No single ideal model for others to follow for the organization of a food safety authority was observed; however, revised NFSS, either in EU member states or at the EU central level, may be more effective from the previous arrangements, because they provide central supervision, give priority to food control programs, and maintain comprehensive risk analysis as part of their activities.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
James Clare ◽  
Kyriakos I. Kourousis

Purpose The ability to learn from previous events in support of preventing future similar events is a valuable attribute of aviation safety systems. A primary constituent of this mechanism is the reporting of incidents and its importance in support of developing learning material. Many regulatory requirements clearly define a structure for the use of learning material through organisational and procedural continuation training programmes. This paper aims to review aviation regulation and practice, highlighting the importance of learning as a key tenet of safety performance. Design/methodology/approach Applicable International Civil Aviation Organisation requirements and the European Union (EU) regulation in aircraft maintenance and continuing airworthiness management have been critically reviewed through content analysis. Findings This review has identified gaps in the European implementing rules that could be addressed in the future to support a more effective approach to the delivery of lessons in the aircraft maintenance and continuing airworthiness management sector. These include light-touch of learning and guidance requirements, lack of methodologies for the augmentation of safety culture assessment, absence of competence requirements for human factors trainers and lack of guidance on standardised root-cause analyses. Practical implications This paper offers aviation safety practitioners working within the European Aviation Safety Agency regulatory regime an insight into important matters affecting the ability to learn from incidents. Originality/value This paper evaluates critically and independently the regulation and practice that can affect the ability of EU regulated aircraft maintenance and continuing airworthiness management organisations to learn from incidents. The outputs from this research present a fresh and independent view of organisational practices that, if left unchecked, are capable of impeding the incident learning process.


2021 ◽  
Vol 8 (4) ◽  
pp. 396-428
Author(s):  
Sarah Jane Fox

Abstract Cooperation is key to policing and keeping mankind safe and secure; this includes protecting citizens from various crimes, including terrorist attacks. However, it is not an easy feat to always achieve – as is explained within this paper. The related research considers the complexities and challenges of sharing and coordinating across divides – or, in other words, cooperating across borders (be they open or closed). Specifically, it discusses the advancements made between one bloc of countries – the European Union; and, how the evolutionary process has aided to expand cooperative community practices via various means between the police and other lea’s. As part of this, transport and movement are viewed as an essential element to be discussed and factored in. Finally, the paper considers the, arguably, devolutionary position of the UK and the implications – post 2020, in terms of marking a ‘potentially’ regressive position, one that stands to compromise safety and security.


Author(s):  
Klaus-Dieter Lehmann

The present economic situation is a poor starting point for the national libraries of Eastern Europe in their efforts to cope with the future. Political censorship is replaced with economic censorship: insufficient budgets, inadequate space for books and readers, gaps in distribution systems, and increasing transport and postal rates. But libraries are an essential element in the intellectual infrastracture and cultural dialogue; and national libraries in Eastern Europe see cooperation with similar libraries in the West as a major way of achieving development. Several countries have agreed to exchange specialists, training and education programmes already exist, and lack of acquisition funds has been somewhat mitigated by book donation programmes; but more needs to be done. The European Union is an appropriate mechanism for developing an East-West programme to improve the infrastructure through the implementation of technological policy. East-West dialogue can best be structured through the Council of Europe, which has recently expanded its membership to include Eastern and Central Europe.


2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Tuo Shen ◽  
Haifeng Song

The communication system that is presently applied in the European Train Control System can only support data exchange between vehicles and ground, but the direct vehicle-to-vehicle communication is not available. The details of interlocking information and other vehicles’ movements are invisible to drivers who are the last defense to prevent unsafe scenarios. As connected vehicles have been envisioned to enhance transportation efficiency and improve safety, the direct vehicle-to-vehicle communication network is involved in this paper to increase the safety of railway transport. In this paper, a new train movement authority (MA+) is proposed. Apart from a wireless communication unit, this system does not require any other infrastructure. With the assistance of vehicle-centric communication technology, MA+ can detect the condition of switches and trains within a certain scope. In this paper, the system structure of MA+ is proposed. Additionally, different implementation scenarios are also discussed. The detection range is estimated and validated based on mathematical calculation and experimental equations. An application demo of MA+ is presented on the Driver Machine Interface of the onboard equipment. The results indicate that MA+ can be a flexible and scalable system for furthering the improvement of railway safety.


2018 ◽  
Vol 236 ◽  
pp. 02007 ◽  
Author(s):  
Jozef Gnap ◽  
Tomáš Settey ◽  
Dominika Beňová

The paper deals with the study of the impact of regular air passenger transport on international long-distance regular bus transport in the Slovak Republic. The comparative period is 2017 (2018) with 2008. The issue is also related to the issue of the use of Slovakian airports for regular air transport after the Slovak Republic entered the European Union in 2004. According to the results of the 2008 survey, both modes of transport have significantly affected the economic crisis. The development of low-cost airlines also affected the decrease in the number of issued transport licenses in 2018 compared to 2008 in international regular bus transport.


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