Analysis of Failures and Influence Factors of Critical Infrastructures: A Case of Metro

Abstract

Metro plays an indispensable role in promoting social and economic development of the big cities. However, the safety operation of the metro system is believed to be an arduous work for its operation being susceptible to various factors, especially equipment failure, which could bring about delay, interruption, and even accidents. In consideration of the seriousness of metro accident, it is becoming more and more crucial to conduct proactive, targeted, and effective risk management to reduce failures. Firstly, based on the FMECA and influence diagram theory, this paper proposes a new analytical framework to study metro equipment failure in accordance with system decomposition. Furthermore, a case study is implemented to verify the feasibility and availability of this framework in evaluating criticality of failure modes and assessing its influence factors based on the collected data from metro operation company. As indicated by the research results, wheel damage is the most serious failure mode in the bogie system, and its most paramount influence factor is the shortage of professional skills. Finally, a discussion about the research methods and results is carried out, and several recommendations are put forward to improve safety management on the basis of research findings. This study has the potential to offer suggestions in regard to metro equipment design, operation, and maintenance for raising the safety level in metro operation.

Reliability analysis of subway sliding plug doors based on improved FMECA and Weibull distribution

“…FMECA is gradually involved in mechanical maintenance, military, aviation, electronics, transportation and firefighting. Deng Y et al [10] proposed a new fault analysis framework for metro equipment using FMECA and influence diagram theory. This study provides recommendations for designing, operating and maintaining subway equipment.…”

“…Motor FM 6 Functional fault 2 FM 7 Line breakage 6 FM 8 Plug loose 5 Locked travel switch S1 FM 9 Functional fault 9 Upper guideway FM 10 Exist cracks 6 Electromagnetic brake FM 11 Circlip breakage 6…”

Comprehensive Evaluation of Resilience for Qinling Tunnel Group Operation Safety System Based on Combined Weighting and Cloud Model

“…On the basis of the relevant literature [33][34][35][36][37][38] and based on the analysis of the aforementioned traffic accident data, the evaluation indicators for the operational safety factors of the expressway tunnel group were qualitatively and quantitatively classified. R1 classifies based on the proportion of high-risk driving behaviors, R2 by driving time, This article adheres to the principles of scientific rigor, systemic analysis, hierarchical structure, independence, measurability, and dynamics to analyze the risk factors associated with tunnel accidents.…”

“…On the basis of the relevant literature [33][34][35][36][37][38] and based on the analysis of the aforementioned traffic accident data, the evaluation indicators for the operational safety factors of the expressway tunnel group were qualitatively and quantitatively classified. R1 classifies based on the proportion of high-risk driving behaviors, R2 by driving time, S1 by traffic volume, S2 by the percentage of large trucks, T1 by tunnel condition scores, T2 by tunnel spacing, T3 by pavement grade, and T4 by the number of curve segments.…”

Pengaruh Pengetahuan Alat Pelindung Diri Terhadap Tingkat Kecelakaan Kerja Konstruksi Menggunakan Metode Rank Spearman

“…Bahaya dari bahan, peralatan, operasi dan pengendalian harus diketahui oleh setiap pekerja. Pencegahan kecelakaan kerja dapat dilakukan dengan meminimalisir kemungkinan kejadian yang membahayakan, menyediakan alat pengamanan untuk alat-alat yang rentan menimbulkan kecelakaan, memberikan pelatihan untuk meningkatkan pengetahuan pekerja, dan menyediakan alat pelindung diri untuk keamanan pekerja [9][10] [11]. Serta mengadakan pelatihan manajemen keselamatan dan kesehatan kerja sangat diperlukan untuk meningkatkan pengetahuan para pekerja [12][13] [14].…”