scholarly journals Formal Safety Assessment of a Marine Seismic Survey Vessel Operation, Incorporating Risk Matrix and Fault Tree Analysis

2020 ◽  
Vol 19 (2) ◽  
pp. 155-172
Author(s):  
Gregory Asuelimen ◽  
Eduardo Blanco-Davis ◽  
Jin Wang ◽  
Zaili Yang ◽  
Dante Benjamin Matellini
Keyword(s):  
Risk Factors ◽  
Safety Assessment ◽  
Fault Tree ◽  
Fault Tree Analysis ◽  
Seismic Survey ◽  
Risk Matrix ◽  
Tree Analysis ◽  
Formal Safety Assessment ◽  
Seismic Surveying ◽  
Marine Seismic

Abstract In maritime safety research, risk is assessed usually within the framework of formal safety assessment (FSA), which provides a formal and systematic methodology to improve the safety of lives, assets, and the environment. A bespoke application of FSA to mitigate accidents in marine seismic surveying is put forward in this paper, with the aim of improving the safety of seismic vessel operations, within the context of developing an economically viable strategy. The work herein takes a close look at the hazards in North Sea offshore seismic surveying, in order to identify critical risk factors, leading to marine seismic survey accidents. The risk factors leading to undesirable events are analysed both qualitatively and quantitatively. A risk matrix is introduced to screen the identified undesirable events. Further to the screening, Fault Tree Analysis (FTA) is presented to investigate and analyse the most critical risks of seismic survey operation, taking into account the lack of historical data. The obtained results show that man overboard (MOB) event is a major risk factor in marine seismic survey operation; lack of training on safe work practice, slippery deck as a result of rain, snow or water splash, sea state affecting human judgement, and poor communication are identified as the critical risk contributors to the MOB event. Consequently, the risk control options are focused on the critical risk contributors for decision-making. Lastly, suggestions for the introduction and development of the FSA methodology are highlighted for safer marine and offshore operations in general.

A fuzzy fault tree analysis based risk assessment approach for enterprise resource planning projects

2018 ◽  
Vol 35 (5) ◽  
pp. 1115-1141 ◽  
Author(s):  
Mina Moeinedini ◽  
Sadigh Raissi ◽  
Kaveh Khalili-Damghani
Keyword(s):  
Risk Factors ◽  
Enterprise Resource Planning ◽  
Fault Tree ◽  
Fault Tree Analysis ◽  
Resource Planning ◽  
Successful Implementation ◽  
Tree Analysis ◽  
Content Type ◽  
Cause And Effect ◽  
Fuzzy Fault Tree Analysis

Purpose Enterprise resource planning (ERP) is assumed as a commonly used solution in order to provide an integrated view of core business processes, including product planning, manufacturing cost, delivery, marketing, sales, inventory management, shipping and payment. Selection and implementation of a suitable ERP solution are not assumed a trivial project because of the challenging nature of it, high costs, long-duration of installation and customization, as well as lack of successful benchmarking experiences. During the ERP projects, several risk factors threat the successful implementation of the project. These risk factors usually refer to different phases of the ERP projects including purchasing, pilot implementation, teaching, install, synchronizing, and movement from old systems toward new ones, initiation and utilization. These risk factors have dominant effects on each other. The purpose of this paper is to explore the hybrid reliability-based method is proposed to assess the risk factors of ERP solutions. Design/methodology/approach In this regard, the most important risk factors of ERP solutions are first determined. Then, the interactive relations of these factors are recognized using a graph based method, called interpretive structural modeling. The resultant network of relations between these factors initiates a new viewpoint toward the cause and effect relations among risk factors. Afterwards, a fuzzy fault tree analysis is proposed to calculate Failure Fuzzy Possibility (FFP) for the basic events of the fault tree leading to a quantitative evaluation of risk factors. Findings The whole proposed method is applied in a well-known Iranian foodservice distributor as a case study. The most impressive risk factors are identified, classified and prioritized. Moreover, the cause and effect diagram between the risk factors are identified. So, the ERP leader can plan a low-risk project and increase the chance of success. Originality/value According to the authors’ best knowledge, such approach was not reported before in the literature of ERP risk assessments.

Reliability and Fault Tree Analysis: Theoretical and Applied Aspects of System Reliability and Safety Assessment.

1977 ◽  
Vol 72 (358) ◽  
pp. 482 ◽  
Author(s):  
Robert G. Easterling ◽  
R. E. Barlow ◽  
J. B. Fussel ◽  
N. D. Singpurwalla
Keyword(s):  
System Reliability ◽  
Safety Assessment ◽  
Fault Tree ◽  
Fault Tree Analysis ◽  
Tree Analysis

Research of the Node Ordering Technique According to the Shortest Fault Tree

2017 ◽  
Author(s):  
Guofeng Tang ◽  
Jingyu Zhang ◽  
Wei Gao ◽  
Qinfang Zhang
Keyword(s):  
Safety Assessment ◽  
Fault Tree ◽  
Fault Tree Analysis ◽  
Binary Decision ◽  
Tree Analysis ◽  
Advanced Method ◽  
Probabilistic Safety Assessment ◽  
The Core ◽  
Minimal Cut Sets ◽  
Variable Ordering

Zero-suppressed Binary Decision Diagram (ZBDD) algorithm is an advanced method in fault tree analysis, which is developing quickly in recent years and being used in the development of the Probabilistic Safety Assessment (PSA) Quantification Engine. This algorithm converts a fault tree to a ZBDD structure, solves the minimal cut sets and calculates the top node unavailability. The ordering of the basic events and logical gates is the core technique of the ZBDD algorithm, which determines the efficiency of the ZBDD conversion and the size of the ZBDD structure. A variable ordering method based on the structure of the fault tree is developed in this paper, which gives a better basic events order by compressing the fault tree; meanwhile, the method offers a logical gates order. The nodes order derived from this method can accelerate the ZBDD conversion obviously.

scholarly journals IDENTIFIKASI POTENSI BAHAYA DAN TEKNOLOGI KESELAMATAN KERJA PADA OPERASI PERIKANAN PAYANG DI PALABUHANRATU, JAWA BARAT

2013 ◽  
Vol 8 (2) ◽  
pp. 60
Author(s):  
Fis Purwangka ◽  
Sugeng Hari Wisudo ◽  
Budhi H. Iskandar ◽  
John Haluan
Keyword(s):  
Task Analysis ◽  
Safety Assessment ◽  
Human Error ◽  
Fault Tree Analysis ◽  
Reduction Technique ◽  
Error Assessment ◽  
Human Reliability Analysis ◽  
Hierarchical Task Analysis ◽  
Tree Analysis ◽  
Formal Safety Assessment

Penyebab utama kecelakaan laut yang berujung pada hilangnya nyawa manusia adalah murni kesalahan manusia (human error). Penyebab lainnya adalah pengabaian yang dilakukan oleh penyelenggara transportasi laut dan instansi-instansi terkait, serta perlengkapan keselamatan transportasi laut yang jauh dari memadai.  Khusus pada kegiatan perikanan, sebanyak 80 persen faktor kecelakaan laut disebabkan oleh kealpaan manusia.  Tulisan ini bertujuan untuk mengetahui potensi bahaya pada teknologi penangkapan ikan yang saat ini digunakan nelayan dengan mengidentifikasi risiko keselamatan kerja nelayan yang disebabkan oleh human error dan melakukan pengukuran kemungkinan terjadinya human error serta memberikan rekomendasi untuk mengurangi risiko yang disebabkan oleh human error.  Metode yang digunakan dalam penelitian ini adalah Formal Safety Assessment (FSA) dengan melakukan pengamatan langsung aktivitas penangkapan ikan pada perikanan payang.  Unsur manusia dapat dimasukkan ke dalam proses FSA dengan menggunakan analisis keandalan manusia (Human Reliability Analysis).  Tahapan HRA yang dilakukan adalah dengan mengidentifikasi aktivitas/tugas secara rinci dengan Hierarchical Task Analysis (HTA).  Tahap kedua adalah melakukan penilaian risiko dengan menggunakan Human error Assessment and Reduction Technique (HEART).  Tahap yang terakhir adalah memilih opsi pengendalian risiko yang konsisten terhadap aktivitas yang diamati dengan menggunakan Fault Tree Analysis (FTA).  Aktivitas yang memiliki peluang risiko terbesar terjadi pada aktivitas pengoperasian alat tangkap pada saat pemasangan (setting) alat tangkap.  Peluang konsekuensi kecelakaan kerja terbesar adalah aktivitas pengangkatan alat tangkap (hauling). Pilihan minimalisasi human error, secara umum adalah dengan melakukan perencanaan pelayaran, pemilihan ABK yang kompeten, melakukan aktivitas secara aman dan mempersiapkan alat perlindungan diri (APD) saat melakukan aktivitas atau berada di atas perahu.

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