Rolling stock rescheduling in passenger railway transportation using dead-heading trips and adjusted passenger demand

2017 ◽  
Vol 101 ◽  
pp. 140-161 ◽  
Author(s):  
Joris Wagenaar ◽  
Leo Kroon ◽  
Ioannis Fragkos
Keyword(s):  
Rolling Stock ◽  
Railway Transportation ◽  
Passenger Demand

scholarly journals Graceful extensibility in asset management: extending the capacity to adapt in managing cyber-physical railway systems

2021 ◽  
Author(s):  
Jan-jaap Moerman ◽  
Jan Maarten Schraagen ◽  
Jan Braaksma ◽  
Leo van Dongen
Keyword(s):  
Asset Management ◽  
Adaptive Systems ◽  
New Technologies ◽  
Autonomous Driving ◽  
Cyber Physical Systems ◽  
Transportation Systems ◽  
Rolling Stock ◽  
Railway Transportation ◽  
Physical Systems ◽  
Railway Systems

AbstractGraceful extensibility has been recently introduced and can be defined as the ability of a system to extend its capacity to adapt when surprise events challenge its boundaries. It provides basic rules that govern adaptive systems. Railway transportation systems can be considered cyber-physical systems that comprise interacting digital, analog, physical, and human components engineered for safe and reliable railway transport. This enables autonomous driving, new functionalities to achieve higher capacity, greater safety, and real-time health monitoring. New rolling stock introductions require continuous adaptations to meet the challenges of these complex railway systems as an introduction takes several years to complete and deals with changing stakeholder demands, new technologies, and technical constraints which cannot be fully predicted in advance. To sustain adaptability when introducing new rolling stock, the theory of graceful extensibility might be valuable but needs further empirical testing to be useful in the field. This study contributes by assessing the proto-theorems of graceful extensibility in a case study in the railway industry by means of adopting pattern-matching analysis. The results of this study indicate that the majority of theoretical patterns postulated by the theory are corroborated by the data. Guidelines are proposed for further operationalization of the theory in the field. Furthermore, case results indicate the need to adopt management approaches that accept indeterminism as a complement to the prevailing deterministic perspective, to sustain adaptability and deal effectively with surprise events. As such, this study may serve other critical asset introductions dealing with cyber-physical systems in their push for sustained adaptability.

scholarly journals Improving the Quality Management System in the Locomotive Repair Shops of the Trans-Baikal Railway

2021 ◽  
Vol 12 (3) ◽  
Author(s):  
Elena Larchenko ◽  
Alexander Eremenko ◽  
Olga Bystrova
Keyword(s):  
Quality Management ◽  
Management System ◽  
Swot Analysis ◽  
Quality Management System ◽  
Rolling Stock ◽  
Market Quality ◽  
Railway Transportation ◽  
Cause And Effect Diagram ◽  
Locomotive Repair

In the context of high competition in railway transportation market, quality management is becoming an important prerequisite for attracting customers and meeting their needs, gaining and retaining market share and increasing work efficiency. The current quality management system at the locomotive repair shops has a number of drawbacks that result in long-term idle time of the rolling stock for maintenance or repair and significant expenses. The article deals with the problems of defining the concepts “quality management” and “quality improvement” for locomotive repair shops. The authors analyze the current QMS in the locomotive repair shops of the Trans-Baikal Railway, make a SWOT-analysis, and develop a number of measures and management decisions for improving the quality. An objectives tree for QMS and Ishikawa's Cause-and-Effect-Diagram of inconsistencies are used to determine problems in the locomotive repair shops and propose ways of eliminating inconsistencies in each element of QMS.

RESEARCH OF RAILWAY TRANSPORTATION OF FREIGHT BY GROUP AND SINGLE CARS

2020 ◽  
pp. 150-162
Author(s):  
V. Gaba ◽  
O. Strelko ◽  
T. Hrushevska ◽  
I. Gusar
Keyword(s):  
Mathematical Model ◽  
Delivery Systems ◽  
Rolling Stock ◽  
Railway Transport ◽  
Railway Transportation ◽  
Final Value ◽  
Cargo Delivery ◽  
Cargo Transportation ◽  
The Cost ◽  
Cost Of Transportation

The influence of the existing conditions of operational work at transportation of cargoes by group and single cars is investigated. An analysis of modern approaches to improving the efficiency of the car fleet and the competitiveness of railway transport in the transport market of Ukraine. The most perspective approaches and directions of improvement of cargo delivery systems are allocated. A study of the efficiency of the organization of transportation by the criterion of total car-hours of downtime under accumulation. A mathematical model of chemical cargo transportation by carriage, group shipments and transportation of container trains with accumulation to technical norms of trains in the directions of transportation has been developed. The efficiency of two models of chemical cargo shipment organization is compared and a more efficient transportation option is identified. It is established that for more efficient use of rolling stock and reduction of car turnover there is transportation of goods in cars as a part of a container train. The influence of the components of the car turnover on its final value is analyzed. A study of the cost of transportation of benzene in tanks and tank containers in some areas. According to research, the cost of transporting benzene in tank containers on railway ownership platforms is twice less than in private tanks and tanks of Ukrzaliznytsia fleet. These recommendations will improve the process of transportation and increase the volume of goods by rail.

DEVELOPING ALTERNATIVE CONCEPT FOR RAILWAY OPERATION AND MAINTENANCE CONTRACT

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Herawati Zetha Rahman ◽  
Perdana Miraj ◽  
Jade Sjafrecia Petroceany
Keyword(s):  
Net Present Value ◽  
Private Investment ◽  
Rolling Stock ◽  
Light Rail ◽  
Railway Transportation ◽  
Operation And Maintenance ◽  
The Government ◽  
Simple Contact ◽  
Government Body ◽  
Railway Operation

Most of Indonesia’s railway investment is supported from the government budget where the operation and maintenance conducted by PT KAI – a sole state owned enterprise in railway industry. Currently, the government attempt to attract private sectors in railway infrastructure by contracting out operation and maintenance. However, limited experience in formulating suitable contract makes the progress relatively slow. The objective of this research is to examine alternative contract in operation and maintenance for Indonesia’s railway transportation by taking Greater Jakarta Light Rail Transit (LRT) as the case study. It will consider financial components that consist of net present value, internal rate of return and payback period to produce targeted output. This research generates two simulations; (1) a simple contract where the government covers investment cost; procurement of rolling stock; and construction of stabling yard and depot. Meanwhile, the winner from tendering process have to conduct operation and maintenance for both the infrastructure and rolling stock; (2) a lease contract where a winner from tendering process require to pay lease fee through selected government body to run the operation and maintenance. The result shows simple contact where the operator only responsible for operating and maintaining the infrastructure and rolling stock is more favorable to attract private investment.

An international comparison of urban rail boarding and alighting rates

2007 ◽  
Vol 221 (4) ◽  
pp. 521-526 ◽  
Author(s):  
N G Harris ◽  
R J Anderson
Keyword(s):  
International Comparison ◽  
Operating Conditions ◽  
Rolling Stock ◽  
Flow Rates ◽  
Demand Planning ◽  
Passenger Flow ◽  
Passenger Demand ◽  
Urban Rail ◽  
The World ◽  
Parameter Values

Although there is considerable engineering and demand planning analysis in the development of urban railways around the world, less attention is paid to the understanding of key operating conditions such as station stop times. The current paper takes forward research by London Underground, and shows that it is applicable to situations around the world without substantial changes in parameter values or the resulting passenger flow rates. Where passenger flow is substantially different, this can generally be explained by particular differences in the physical characteristics of the site, rolling stock, or passenger demand.

scholarly journals Improvement of international rail transportation of benzene between Ukraine and the European Union countries

2019 ◽  
Vol 294 ◽  
pp. 04010
Author(s):  
Vasyl Gaba ◽  
Tetiana Hrushevska ◽  
Oleg Strelko ◽  
Anna Kyrychenko ◽  
Marina Rudyuk ◽  
...  
Keyword(s):  
European Union ◽  
Rolling Stock ◽  
The European Union ◽  
Railway Transportation ◽  
Technical Standards ◽  
Eu Countries ◽  
European Union Countries ◽  
Cargo Transportation ◽  
The Cost ◽  
The Eu

It is considered the possibility of improvement of the international railway transportation of benzene and other related cargoes between Ukraine and the European Union countries for the carriage of these cargoes in tank containers. The volume of chemical cargo transportation to the EU countries to the rolling stock types for 2018 has been analyzed. The research of the effectiveness of organization of international transportation according to the criterion of the total hours of downtime by wagons under accumulation. The mathematical model of chemical cargoes transportation by wagons, wagon groups and container trains with the accumulation to the technical standards on the cargo diversions was elaborated. The models take into account the unevenness of the wagon arrivals to the accumulation points and observance of the number of wagons to the established norm. A comparison of the effectiveness of the two models of the organization of the chemical cargo delivery and it was defined a more effective version of transportation. It has been established that for more efficient using of the rolling stock and for the rolling stock circulation decreasing is the cargo transportation by trains which consist of cisterns or/and tank container carriages. The influence of the components of the rolling stock circulation and its value are analyzed. The research of the cost of benzene transportation in cisterns and tank containers for the individual diversions was studied. According to the research results the cost of benzene transportation by platforms of the railways ownership is less than twice in comparison to private cisterns and tank-containers of the Ukrainian Railways fleet. These recommendations will improve the process of transportation and increase of volumes of international cargo by railroads between Ukraine and the EU countries.

scholarly journals On traffic safety incidents caused by intrusion of derailed freight cars into the operational space of an adjacent track

Dependability ◽  
2018 ◽  
Vol 18 (3) ◽  
pp. 39-45 ◽  
Author(s):  
A. M. Zamyshliaev ◽  
A. N. Ignatov ◽  
A. I. Kibzun ◽  
E. O. Novozhilov
Keyword(s):  
Traffic Safety ◽  
Choice Model ◽  
Likelihood Method ◽  
Rolling Stock ◽  
Railway Transportation ◽  
Probit Regression ◽  
Freight Train ◽  
Operational Space ◽  
Freight Car ◽  
Train Loading

Aim.Derailments of rolling stock units (cars, locomotive units) of freight trains cause damage to roadbed and rolling stock, as well as possible loss of transported cargo. Of special interest are cases when derailed rolling stock units intrude into the operational space ofan adjacent track. This, for instance, happened in the case of the Moscow – Chișinșu train at the Bekasovo I – Nara line on May 20, 2014, when as a result of the derailment of freight cars with subsequent intrusion into the operational space of an adjacent track 6 people were killed as the result of collision with an opposing train. In some cases intruding units may collide with an opposing freight train, which may cause the death of that train’s crew and derailment of its cars, which in case of transportation of hazardous loads (e.g. oil and gasoline) may have catastrophic consequences. Intrusion into the operational space ofan adjacent track also interrupts the traffic in both directions. In this context, evaluating the probability of derailed cars intruding into the operational space of an adjacent track is extremely important in order to maintain the tolerable level of risk in railway transportation, while the aim of this paper is to construct functional dependences between the probability of derailed cars intruding into the operational space of an adjacent track and various factors.Methods. Probability theory and mathematical statistics methods were used: maximum likelihood method, logistic regression, probit regression, Cauchy regression.Results.For each of the groups of incidents: derailments due to faulty cars/locomotive units, derailments due to faulty track, using the classic binary choice model an estimation was constructed of the probability of at least one derailed freight car intruding into the operational space of an adjacent track. This estimation turned out to be dependent upon the train loading and number of derailed units. As the number of derailed units is a priori (before the derailment) unknown, it was suggested to construct the probability of intrusion by at least one derailed freight car into the operational space of an adjacent track using a parametric model of dependence between the average number of derailed units and various traffic factors. The resulting dependences were compared. A numerical example was examined.Conclusions.There is a significant direct correlation between the random values that characterize intrusion by at least one unit into the operational space of an adjacent track and the number of derailed freight train units. A direct dependence between the train loading and intrusion by derailed units into an adjacent track was established. In case of derailment due to faulty track, for loaded trains the probability of at least one derailed unit intruding into the operational space of an adjacent track is extremely high. 

scholarly journals Economic security in railway transport as an effective component of stable development of railway transport

2021 ◽  
Vol 1 (1) ◽  
pp. 307-315
Author(s):  
Larysa Martseniuk ◽  
Oleksandra Kokitko ◽  
Diana Savchenko
Keyword(s):  
Large Scale ◽  
Road Transport ◽  
Economic Security ◽  
Transport Infrastructure ◽  
Rolling Stock ◽  
Railway Transport ◽  
Railway Transportation ◽  
Economic Activities ◽  
Private Funding ◽  
Passenger Transportation

The competitiveness of an enterprise in comparison with other entities working with it in the same plane has a significant impact on the results of its activities, including profit. If we talk about railway transport, in the field of providing passenger transportation within the country, then road transport has become a close and fairly significant competitor of railway transport, because the availability of cars to an ordinary citizen, an extensive network of bus routes, competitive cost and speed of delivery of a passenger from point A to point B by road vehicles have significantly weakened the place of rail transport in the passenger transportation market. The following factors negatively influence the volume of passenger transportation by rail in Ukraine: ineffective reforms, their obsolescence and protraction, ineffective industry management system, outdated financial model and tariff setting system. Ensuring a stable, profitable operation of a transport organization by identifying and meeting the needs of passengers to the maximum is the main goal of marketing in the field of passenger transportation. The current tough market conditions for the implementation of financial and economic activities in the field of railway transportation require a change in the policy of using the labor potential of Ukrzaliznytsia in order to increase its financial potential. In the article, the authors, in order to increase the competitiveness of railway transport, note not only on a thorough and large-scale renovation and reconstruction of railway transport infrastructure and rolling stock (with the help of public and private funding), but also the need to determine the needs of the passenger, his hopes and expectations from railway travel (for this it is proposed to create an appropriate marketing service in the structure of the railways, conduct regular surveys of passengers, etc.). The authors consider an increase in the motivation for high-quality performance of official duties by railroad employees as one of the important areas of increasing the competitiveness of rail passenger transportation, because it is they who come into direct contact with passengers and significantly affect the general impression of the passenger from the trip.

scholarly journals Risk Prioritization for Failure Modes in Mining Railcars

2021 ◽  
Vol 13 (11) ◽  
pp. 6195
Author(s):  
Mohammad Javad Rahimdel ◽  
Behzad Ghodrati
Keyword(s):  
Large Scale ◽  
Failure Modes ◽  
Transportation Systems ◽  
Control Measures ◽  
Rolling Stock ◽  
Railway Transportation ◽  
Effect Analysis ◽  
Risk Prioritization ◽  
Fuzzy Environment ◽  
Hierarchy Process

Railway transportation systems are generally used to transport minerals from large-scale mines. Any failure in the railcar components may cause delays or even catastrophic derailment accidents. Failure mode and effect analysis (FMEA) is an effective tool for the risk assessment of mechanical systems. This method is an appropriate approach to identify the critical failure modes and provide proper control measures to reduce the level of risk. This research aims to propose an approach to identify and prioritize the failure modes based on their importance degree. To achieve this, the analytical hierarchy process (AHP) is used along with the FMEA. To compensate for the scarcities of the conventional FMEA in using the linguistic variables, the proposed approach is developed under the fuzzy environment. The proposed approach was applied in a case study, a rolling stock operated in an iron ore mine located in Sweden. The results of this study are helpful to identify not only the most important failure modes but also the most serious and critical ones.

scholarly journals Railway Vehicle Energy Efficiency as a Key Factor in Creating Sustainable Transportation Systems

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 5211
Author(s):  
Małgorzata Ćwil ◽  
Witold Bartnik ◽  
Sebastian Jarzębowski
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Life Cycle Cost ◽  
Real Life ◽  
Transportation Systems ◽  
Sustainable Transportation ◽  
Rolling Stock ◽  
Railway Vehicle ◽  
Railway Transportation ◽  
Significant Difference

Railway transit forms the backbone of sustainable transportation systems, which are necessary to limit the effects of global warming. In this paper, the authors seek to determine whether there is a statistically significant difference in energy consumption between distinct railway vehicle types. Firstly, the energy consumption measurement methods in the railway transportation sector are described and compared to each other in respect to precision and cost. Secondly, the use of energy consumption as a criterion in rolling stock tenders with the associated norm is analysed, particularly with regard to the life-cycle cost of railway vehicles. In the next part real life data on energy consumption of six distinct passenger electrical railway vehicle types is presented and analysed in order to compare the efficiency of different types of rolling stock. The differences in energy efficiency between rolling stock types may be used to improve the procurement process ensuring train operating companies obtain less energy-consuming vehicles.

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