scholarly journals Rail Transport Infrastructure on the Example of Level Crossing System

2018 ◽  
Vol 7 (4.3) ◽  
pp. 228 ◽  
Author(s):  
Perzyński Tomasz ◽  
Wojciechowski Jerzy ◽  
Łukasik Zbigniew
Keyword(s):  
Markov Processes ◽  
Statistical Data ◽  
Rail Transport ◽  
Transport Infrastructure ◽  
Motor Vehicles ◽  
Level Crossing ◽  
Automation Systems ◽  
Automatic Level

The paper presents an analysis of the system of automatic level crossing. The proposed system belongs to a group of linear devices that ensure safe movement of motor vehicles at intersections of railway and car roads. In the paper, the computational tasks were carried out. On the basis of statistical data, the THR rate, which is characteristic for rail transport, was estimated. An example of modeling railway automation systems based on Markov processes is also presented. 

Safety of operation when motor vehicles stop at railway crossings in front of approaching train

2020 ◽  
pp. 39-42
Author(s):  
Anton Nikolaevich Popov ◽  
◽  
Sergey Yuryevich Grishaev ◽  
Keyword(s):  
Motor Vehicle ◽  
Motor Vehicles ◽  
Level Crossing ◽  
Full Stop ◽  
Automatic Level

The paper shows investigations of relationship between the length of approach sections of level crossing safety installation and braking distances of trains. It is established that the existing methods of calculating approach sections of automatic level crossing safety installation don’t guarantee, if necessary, a full stop of a train by braking before a crossing after it’s closure. The authors have formulated a condition when a train can be stopped before a closed crossing occupied by a motor vehicle. They have also carried out a verification of the existing automatic level crossing safety installation systems and established that such systems don’t comply the formulated condition, so the full stop of a train is not guaranteed. So, the authors have proposed measures on developing an algorithm of automatic level crossing safety installation operation for the control of automatic stop of a train before a crossing occupied by a motor vehicle. It is shown that the development of engineering is on a level sufficient for realization of this suggestions.

Time of crossing closure at different methods of formation of notification sections

2020 ◽  
pp. 29-33
Author(s):  
Anton Nikolaevich Popov ◽  
◽  
Sergey Yuryevich Grishaev ◽  
Keyword(s):  
Road Transport ◽  
Level Crossing ◽  
Fixed Length ◽  
Train Speed ◽  
Automatic Level

The paper presents the results of creation and investigation of dependencies of notification sections and notification times from train speed at different methods of automatic level crossing safety installation control. The authors consider automatic level crossing safety installation systems with notification sections of fixed length and with the control based on approaching train characteristics. As a result, method of automatic level crossing safety installation control based on train characteristics simultaneously increases safety and decreases time of crossing closure for road transport.

scholarly journals MATHEMATICAL MODELLING AS AN ELEMENT OF PLANNING RAIL TRANSPORT STRATEGIES

Transport ◽  
2021 ◽  
Vol 36 (4) ◽  
pp. 354-363
Author(s):  
Anna Borucka ◽  
Dariusz Mazurkiewicz ◽  
Eliza Łagowska
Keyword(s):  
Time Series ◽  
Development Strategy ◽  
Time Series Data ◽  
Arima Model ◽  
Exponential Smoothing ◽  
Rail Transport ◽  
Transport Infrastructure ◽  
Rolling Stock ◽  
Series Data ◽  
Passenger Transport

Effective planning and optimization of rail transport operations depends on effective and reliable forecasting of demand. The results of transport performance forecasts usually differ from measured values because the mathematical models used are inadequate. In response to this applicative need, we report the results of a study whose goal was to develop, on the basis of historical data, an effective mathematical model of rail passenger transport performance that would allow to make reliable forecasts of future demand for this service. Several models dedicated to this type of empirical data were proposed and selection criteria were established. The models used in the study are: the seasonal naive model, the Exponential Smoothing (ETS) model, the exponential smoothing state space model with Box–Cox transformation, ARMA errors, trigonometric trend and seasonal components (TBATS) model, and the AutoRegressive Integrated Moving Average (ARIMA) model. The proposed time series identification and forecasting methods are dedicated to the processing of time series data with trend and seasonality. Then, the best model was identified and its accuracy and effectiveness were assessed. It was noticed that investigated time series is characterized by strong seasonality and an upward trend. This information is important for planning a development strategy for rail passenger transport, because it shows that additional investments and engagement in the development of both transport infrastructure and superstructure are required to meet the existing demand. Finally, a forecast of transport performance in sequential periods of time was presented. Such forecast may significantly improve the system of scheduling train journeys and determining the level of demand for rolling stock depending on the season and the annual rise in passenger numbers, increasing the effectiveness of management of rail transport.

scholarly journals ORGANIZATIONAL AND ECONOMIC ASPECTS OF IMPROVING SUBURBAN RAILWAY TRANSPORTATION

2019 ◽  
pp. 67-74
Author(s):  
A. V. Kurbatova ◽  
D. A. Plotnikova
Keyword(s):  
Statistical Data ◽  
Economic Condition ◽  
Rail Transport ◽  
Railway Transport ◽  
Railway Transportation ◽  
Financial Condition ◽  
Methodical Approach ◽  
The Russian Federation ◽  
Suburban Railway ◽  
Methods Of Calculations

The features of management of domestic railway transport at different stages of its development have been disclosed. The main principles and conditions of structural reform in the industry have been formulated. The main models of management of the railway complex, principles and features of the organization of suburban railway communication in different countries have been characterized. Statistical data on suburban rail transport on the infrastructure of JSC «Russian Railways», confirming their importance and significance for the Russian Federation, have been adduced. The economic results of the activity of domestic suburban passenger companies have been considered. The shortcomings of the existing methodology for assessing the financial condition of suburban passenger companies have been indicated. The proposals to improve the current methods of calculations taking into account the conditions of prospective development of companies have been given. The scheme of scientific and methodical approach to the analysis of economic condition of the suburban passenger companies, including set of procedures of calculated and analytical character, has been offered.

scholarly journals Development of the logical part of the intellectual multi-parameter relay protection

2019 ◽  
Vol 139 ◽  
pp. 01060 ◽  
Author(s):  
Anton Loskutov ◽  
Pavel Pelevin ◽  
Mile Mitrovoc
Keyword(s):  
Markov Processes ◽  
Software Package ◽  
Statistical Data ◽  
Reactive Power ◽  
Relay Protection ◽  
One Dimensional ◽  
Active And Reactive Power ◽  
Logical Part ◽  
Fault Detectors

The issues of increasing the sensitivity and reliability of multi-parameter relay protection by sharing more than one information feature (current module, voltage module and phase, active and reactive power) are considered. In this case, the response parameters of individual one-dimensional measuring fault detectors based on the accumulation of statistical data during simulation in the Matlab / Similink software package are determined. A method for combining the signals of one-dimensional measuring fault detectors to increase the sensitivity of protection is proposed. The reliability of the organization of the logical part of multi-parameter relay protection was estimated using the theory of Markov processes, the principles of “2 out of 3” and “1 out of 2”.

scholarly journals Decision Support to Sustainable Parking Management—Investment Planning through Parking Fines to Improve Pedestrian Flows

2020 ◽  
Vol 12 (22) ◽  
pp. 9485
Author(s):  
Majda Ivić ◽  
Jelena Kilić ◽  
Katarina Rogulj ◽  
Nikša Jajac
Keyword(s):  
Decision Support ◽  
Multicriteria Analysis ◽  
Transport Infrastructure ◽  
Motor Vehicles ◽  
Preference Ranking ◽  
Investment Planning ◽  
Urban Centers ◽  
Analytic Hierarchy ◽  
Parking Management ◽  
Pedestrian Traffic

With the urbanization and expansion of cities, which have taken place over recent decades, new demands and problems are emerging, among which is the problem of inadequate transport infrastructure. The number of motor vehicles is growing, while transport infrastructure is not following that growth fast enough. One of the problems that arises is the insufficient number of garages and parking lots, causing an increase in illegal parking on sidewalks, which impedes and endangers pedestrian traffic. This paper proposes a new decision support concept (DSC) for the management of illegally parked cars in urban centers, which offers a method that can contribute to solving this problem and improving the flow of pedestrians on city roads. Due to its complexity, the problem addressed in this research is recognized as a multicriteria one and therefore the proposed model is based on the use of multicriteria analysis methods—more precisely, the Preference Ranking Organization Method for Enrichment Evaluation—PROMETHEE, and the analytic hierarchy process—AHP. The proposed DSC is validated in the city of Split (Croatia), more precisely in the neighborhood of Sućidar, which shows that this methodology is applicable and effective for finding not a temporary but a permanent solution to the problem described.

scholarly journals Analysis and Scientific Methodological Recommendations for Reducing the Delay on Railway Crossings

2021 ◽  
pp. 77-79
Author(s):  
Ezozbek Turalievich Tokhirov
Keyword(s):  
Travel Time ◽  
Waiting Time ◽  
Research Interest ◽  
Motor Vehicles ◽  
Research Focus ◽  
Level Crossing ◽  
Current Research Interest ◽  
Effective Result

In this research focus on reduces waiting time and safe travel time at a level crossing. Current research interest is the application to improve implementation, reducing the waiting time for motor vehicles at a railroad crossing. At last, got at the level crossing 5% effective result for one improving period.

scholarly journals Kapasitas Infrastruktur dan Fasilitas pada Kereta Api Angkutan Barang dan Logistik

2020 ◽  
Vol 4 (1) ◽  
pp. 32-38
Author(s):  
Abi Prasidi ◽  
Muhamad. Rifni
Keyword(s):  
Qualitative Data ◽  
Freight Transportation ◽  
Phenomenological Approach ◽  
Freight Transport ◽  
Rail Transport ◽  
Transport Infrastructure ◽  
Limited Capacity ◽  
Rail Freight ◽  
Component Development ◽  
Process Method

Very limited capacity of the highway in some economies tract, such as the Trans Java traffic, has an impact on increasing the travel time especially in the use of rail transport, so that a certain pathway requires capacity building and the development of new lines gradually. The purpose of this research was to determine the capacity of rail transport infrastructure that is optimal for the distribution of goods, especially as the company managed by PT. Railway Logistics or KALOG. Another problem is how the government's role and the flow of freight transport demand. In the discussion, through a variety of existing data, the authors use research with phenomenological approach on the basis of qualitative analysis methods interpretative paradigm. Results are expected to be useful for improving knowledge about the needs of rail freight transport on goods distribution on the Java Island. The results of this research will be published in scientific journals. The purpose of this research are two folds. This research combination between qualitative data and quantitative data . The first is to calculate the technology contribution coefficient (TCC) and the second is to determine the priority of technology component development. This research has been done in PT. KALOG, a rail freight transportation company. To calculate the TCC, the author has used the technometric model and the analytical bierarchy process method. By improving these two components, operational problems will be minimized so that operating performance and sales volume will increase. It can then be expected that PT. KALOG will improve its rule in business competition.

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