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Reliability analysis of subway vehicles based on the data of operational failures
2017
EURASIP Journal on Wireless Communications and Networking
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A large quantity of failure data for subway vehicles was collected from long-term field investigations and technical exchanged. ...
These failure data has a guiding significance for preserving subway system. ...
Acknowledgements We thank the reviewers for their detailed reviews and constructive comments which have helped to improve the quality of this article. ...
doi:10.1186/s13638-017-0996-y
fatcat:xz2ofixph5eibgupgdxhdses2y
SOMS: A Subway Operation and Maintenance System Based on Planned Maintenance Model with Train State
2013
Journal of Intelligent Learning Systems and Applications
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This paper aims to propose a modeling framework for subway operation and maintenance system (SOMS), which analyzes the train condition data based on both train sensor network data and basis train maintenance ...
The case of Guangzhou metro is conducted to illustrate the applicability of SOMS, and the results reveal a number of interesting insights into subway maintenance system, i.e., the worksheet can reduce ...
The planned maintenance mode is the proposed mode based on the analysis of historical experience. ...
doi:10.4236/jilsa.2013.54021
fatcat:g3icvnyynndwzejarapqjwdycy
Subway Station Capacity Maintained by Optimizing a Maintenance Schedule of Key Equipment
2019
Applied Sciences
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After that the lower bound of equipment reliability is determined by sensitivity analysis based on the equipment reliability-expected station capacity curve. ...
The service capacity of each station has a direct impact on the capacity of a subway line and also the whole subway network. ...
Conflicts of Interest: The authors declare no conflict of interest. Appl. Sci. 2019, 9, 1386 ...
doi:10.3390/app9071386
fatcat:ustpbz5virgphiei62h3epk4r4
Fatigue damage and reliability assessment of subway train bogie frames under operating conditions
2020
Advances in Mechanical Engineering
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The predicted failure mileage for the welding joint with 99% reliability was only 340,000 km, which agreed well with the real operation situation. ...
Fatigue cracks developed on subway train bogie frames before reaching the designed lifetime, which poses great challenges to operational safety. ...
Reliability assessment results Based on the fatigue life L j calculated from daily stress data of the measuring point 3-HD5, the cumulative failure probability function of the critical areas of welded ...
doi:10.1177/1687814020903590
fatcat:h3rqqiyrhnhxxc6wkzydag5wsm
Validating DFS concept in lifecycle subway projects in China based on incident case analysis and network analysis
2018
Journal of Civil Engineering and Management
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To validate the influence of DFS concept on lifecycle safety performance, this research conducted an incident case analysis (ICA) based on 442 cases collected from lifecycle subway projects, and a subway ...
While existing research mainly concentrates on construction and operation phases, the role of design phase in construction safety management is always ignored. ...
Funding
Disclosure statement All the authors have no conflict of interest. ...
doi:10.3846/jcem.2018.300
fatcat:p3rnfnbfkrhbhdfbijzrmi4gga
Key Technologies of the Independent and Innovative Communications-Based Train Control Systems in China
2016
Urban Rail Transit
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failure data replay, analysis and disposal, system upgrade, and maintenance. ...
The models and algorithms are proposed to control the safe operation of trains. ...
Acknowledgments This work is supported by the Beijing municipal science and technology plan project (Project Number: D15110000581 5001) and the Beijing urban rail operation control system engineering technology ...
doi:10.1007/s40864-016-0035-z
fatcat:3s6anbgizrfppl4ajtkyzquwge
Subway Productivity, Profitability, and Performance
2010
Transportation Research Record
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Asian systems operate more reliably than New York's hundred-year-old subway because of modern design parameters, advanced technology, different legal frameworks and management processes. ...
Detailed comparative analyses of New York City subways and four Southeast Asian transit systems revealed that Hong Kong's subways are profitable because of high asset productivity resulting from a strategic ...
FIGURE 3 3 Comparative analysis of operations reliability measures and system characteristics. ...
doi:10.3141/2143-07
fatcat:bcunu5m6ejddpofqofrrshr3v4
ASSESSMENT OF THE INFLUENCE OF SELECTED FACTORS ON THE PUNCTUALITY OF AN URBAN TRANSPORT FLEET
2020
Transport Problems
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The analysis made it possible to go beyond the framework of the overall assessment and to identify the factors that have a significant effect on the punctuality index and to indicate the degree of this ...
of the fleet operation system, or for preventive measures. ...
Based on the monthly data, the following exogenous variables were selected for further analysis: occurrence of vehicle breakdowns, number of accidents, number of collisions, and traffic stoppages owing ...
doi:10.21307/tp-2020-069
fatcat:4dcmnushhjafre7fdj2qwflj4e
RAMS Analysis of Train Air Braking System Based on GO-Bayes Method and Big Data Platform
2018
Complexity
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In this paper, a new method of safety analysis is described for the failure mode of the air braking system, GO-Bayes. ...
This method combines the structural modeling of the GO method with the probabilistic reasoning of Bayes methods, introduces the probability into the analysis process of GO, performs reliability analysis ...
Conflicts of Interest The authors declare that there are no conflicts of interest regarding the publication of this article. ...
doi:10.1155/2018/5851491
fatcat:qnyyfjglojhxbj4jdvchlm2auy
Research and design of data communication subsystem of urban rail transit CBTC system
2021
International Journal of Systems Assurance Engineering and Management
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Therefore, the reasonable, reliable and safe design of the DCS subsystem is of great significance. ...
The development status of CBTC system and data communication subsystem is analyzed, and the importance of data communication subsystem and the necessity of the entire CBTC system are analyzed. ...
To view a copy of this licence, visit http://creativecommons. org/licenses/by/4.0/. ...
doi:10.1007/s13198-021-01055-5
fatcat:toogu2eyrvarzc2bpx6lxseioe
Influence of Vibration Isolator Failure on Vehicle Operation Performance and Floating Slab Track Structure Vibration Reduction Effectiveness
2019
Shock and Vibration
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Based on the model, the failure conditions of steel spring are simulated, considering the failure position and number of steel springs. ...
The results show that the failures of steel-spring vibration isolators have a significant impact on operating safety and stability of vehicle, and the failure at end is more dangerous than that at midspan ...
Calculated Results and Analysis
Impact of Steel-Spring Failure on Operating Safety. ...
doi:10.1155/2019/8385310
fatcat:bkom7w62zfft3p7cykk4sq22ke
A study on fatiguelife and strength of a GFRP composite bogie frame for urban subway trains
2011
Procedia Engineering
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The objective of this study is to evaluate the fatigue life and strength of a GFRP bogie frame for urban subway train. ...
Also, the GFRP composite bogie frame had a good fatigue performance in comparison with conventional metal bogie frame based on SM490A, considering its weight. ...
Acknowledgements The authors would like to thank the Ministry of Knowledge Economy (MKE) and Korea Railroad Research Institute (KRRI) for their financial support and assistance ...
doi:10.1016/j.proeng.2011.04.396
fatcat:272detqg3benbenlehb7ypazqa
Evaluation of Transfer Efficiency between Subway and Bus Based on the Interval Number Ranking Method by Employing Probability Reliability: Taking Ningbo for Example
2021
Discrete Dynamics in Nature and Society
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In recent years, the construction and operation of urban subways have been gradually increasing in developing countries. ...
Accordingly, the probability reliability model of the order relation of interval numbers can be constructed. ...
Nevertheless, there is a lack of in-depth and direct analysis on the transfer time of subway stations for a city. ...
doi:10.1155/2021/9125605
fatcat:t4hxowcuivel5ondnqpjqjifjq
IEEE Access Special Section Editorial: Big Data Technology and Applications in Intelligent Transportation
2020
IEEE Access
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Based on this analysis, the authors recommended a time granularity of 30 min and an ODAD level of ''low'' for actual subway operation. ...
In the article ''Free parking space prediction and reliability analysis based on big data analysis,'' by Zhang et al., the authors investigated the distribution of free parking spaces (FPSs) in parking ...
doi:10.1109/access.2020.3035440
fatcat:r3i3wkhttndbjnyciux3xuny3a
Using Vehicle Interior Noise Classification for Monitoring Urban Rail Transit Infrastructure
2020
Sensors
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This study developed a multi-classification model for vehicle interior noise from the subway system, collected on smartphones. ...
Finally, case studies were provided to extend the applications of this classifier to the analysis of abnormal vehicle interior noise events and evaluate the effects of rail grinding. ...
Conflicts of Interest: The authors declare no conflict of interest. Sensors 2020, 20, 1112 ...
doi:10.3390/s20041112
pmid:32085621
pmcid:PMC7070268
fatcat:u2tp7oluyjdvdovos735nti7de
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