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Information 2018, 9(2), 26; doi:10.3390/info9020026

Importance Degree Research of Safety Risk Management Processes of Urban Rail Transit Based on Text Mining Method

1
School of Mechanics and Civil Engineering, China University of Mining & Technology, Xuzhou 221000, China
2
School of Management, Henan University of Urban Construction, Pingdingshan 467000, China
3
School of Architectural Engineering, North China Institute of Science and Technology, Weifang 261000, China
*
Author to whom correspondence should be addressed.
Received: 29 November 2017 / Revised: 21 January 2018 / Accepted: 22 January 2018 / Published: 26 January 2018
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Abstract

China’s urban rail transit (URT) construction is coming into the stage of rapid development under the guidance of national policies. However, the URT construction projects belong to high-risk projects and construction safety accidents occur frequently. Presently, safety risk management is in continuous development. Unfortunately, due to risk data deficiencies and lack of relationship between participants and safety risk factors, most of the research results cannot be well applied to URT projects. To overcome the limits, this paper has applied the text mining method into safety risk analysis. Through word frequency analysis and cluster analysis, 15 safety risk factors and 3 participants are identified from 156 accident reports. In addition, the accident descriptive model has been established, which is composed of indirect safety risk factors (management defects), direct safety risk factors and participants. In this model, each accident is the standardized description of the corresponding accident information. This is useful for risk data accumulation and analysis. Then the network structure analysis and risk assessment methods are utilized to make clear 63 relationships among participants, management defects and direct safety risk factors. Subsequently, the risk value of each relationship is evaluated. These safety risk information is integrated into the accident descriptive model by using accident points. Finally, ABC analysis which is a popular and effective method used to classify items into specific categories that can be managed and controlled separately is used to analyze the safety risk management’s core process(A), important process(B) and general process(C) in the accident descriptive model. The research results show that the constructor should pay attention to construction coordination, safety specifications, safety measures and personnel education, the supervisor should attach importance to timely communication, the monitoring unit should pay attention to advanced forecast and dynamic control. The main research contributions are as follows: (1) A method of obtaining risk data from unstructured content has been provided; (2) The accident descriptive model could be utilized for risk data continuous accumulation; (3) The emphases of URT construction safety risk management are made clear. View Full-Text
Keywords: urban rail transit; accident reports; safety risk management; safety risk assessment; accident descriptive model; text mining; ABC analysis urban rail transit; accident reports; safety risk management; safety risk assessment; accident descriptive model; text mining; ABC analysis
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Li, J.; Wang, J.; Xu, N.; Hu, Y.; Cui, C. Importance Degree Research of Safety Risk Management Processes of Urban Rail Transit Based on Text Mining Method. Information 2018, 9, 26.

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