Evaluation of implementation an Integrated Safety and Preventive Maintenance System for Improving of Safety Indexes

I mohammadfam, A. Shafkhani, A Soltanian


Accident analysis shows that one of the main reasons for accidents is non-integration of maintenance units with safety. Merging these two processes through an integrated system can reduce and or eliminate accidents, diseases, and environmental pollution. These issues lead to improvement in organizational performance, as well. The aim of this study is to design and establish an integrated system for obtaining the aforementioned goal. Integration was carried out at Nirou Moharreke Machine Tools Company via Structured System Analysis & Design Method (SSADM). In order to measure the effectiveness of the system, selected indexes were compared using statistical methods prior and after system establishment. Results show that the accident severity index reduced from 135.46 in 2010, to 43.85 in 2012. Moreover, system effectiveness improved equipment reliability and availability (e.g. reliability of the Pfeiffer Milling machine (P (t>50)) increased from 0.89 in 2010, to 0.9 in 2012. This system by forecasting various failures, and planning and designing the required operations for preventing occurrence of these failures, plays an important role in improving safety conditions of equipment, and increasing organizational performance, and is capable of presenting an excellent accident prevention program.


Safety, Preventive Maintenance, Integrated system, Structured System Analysis and Design Method (SSADM)

Full Text:



Mohamadfam I, Evaluation of Occupational Accidents and Their Related Factors in Iranian Aluminum Company in 1999, Scientific Journal of Kurdistan University of Medical Sciences, 2001;5 (3): 18-23.

Mehrparvar AH Mirmohammadi SJ, Ghovve MA, Hajian H, Dehghan M, Nabi Meybodi R, Nabi Meybodi N. Epidemiologic Study Of Occupational Accidents Recorded In Yazd Province In The Years 2007-2008, Occupational Medicine, 2012; 13(3): 54-62.

Barzegar A, Shahanaghi K, Aryanezhad M, Maintenance Strategy Selection by Risk Based Inspection Approach. International Journal of Industiral Engineering & Producion Management, 2011; 22(2):193-04.

Kelly TP, McDermid JA, A systematic approach to safety case maintenance. Reliability Engineering & System Safety, 2001; 71(3): 271-84.

Farrington-Darby T, Pickup L, Wilson J.R. Safety culture in railway maintenance, Safety Science, 2005; 43(1),:39-60.

Eti M.C, Ogaji S, Probert S.D. Reducing the cost of preventive maintenance(PM) through adopting a proactive reliability-focused culture, Applied Energy, 2006; 83(11):1235-43.

Herrera I.A, Nordskag A.O, Myhre G, Halvorsen K. Aviation safety and maintenance under major organizational changes, investigating non-existing accidents, Accident Analysis & Prevention, 2009; 41(6):1155-63.

Qingfeng W, Wenbin L, Xin Z, Jianfeng Y, Qingbin Y, Development and application of equipment maintenance and safety integrity management system, Journal of Loss Prevention in the Process Industries, 2011; 24(4): 321-32.

Atak A, Kingma S. Safety culture in an aircraft maintenance organisation: A view from the inside, Safety Science, 2011; 49(2): 268-78.

Azadeh A,. Mohammadfam I, Garakani M.M., A total ergonomic design approach to enhance the productivity in a complicated control system, Information Technology Journal, 2007; 6(7): 1036-42.

Michel H, Mufeed A. Improve industrial process plant safety & availability via reliability engineering, Proceedings of the 2008 IEEE/ACS International Conference on Computer Systems and Applications, 1544368: IEEE Computer Society, 2008: 1021-26.

Al-Ahmari A, Ridgway K. An integrated modelling method to support manufacturing systems analysis and design, Computers in Industry, 1999; 38(3): 225-38.

Manteghi N, Jahromi S.K. Designing accounting ─▒nformation system using SSADM1 Case Study: South Fars Power Generation Management Company (S.F.P.G.M.C), Procedia Technology, 2012;1(0): 308-12.

Edwards H.M, Thompson J.B, Smith P. Experiences in use of SSADM: Series of case studies, Part 1: First-time users, Information and Software Technology, 1989; 31(8): 411-19.

Edwards H.M, Thompson J.B, Smith P. Experiences in use of SSADM: Series of case studies, Part 2: Experienced users, Information and Software Technology, 1989; 31(8): 420-28.

Wade S. A new course in systems analysis and design. International Journal of Information Management. 1991; 11(3): 238-47.

Mahoney D. Large property damage losses in the hydrocarbon-chemical industries : a thirty-year review. 14 ed: New York ,Marsh & McLennan, 1992.

Farshad A.A, Khosravi Y, Alizadeh S. The Role of HSE management System in Improving health, safety and environment performance in an Oil Organization, Iranian Occupational Health Journal, 2006; 3(2): 6-11.

Azadeh A, Nouri J, Mohammadfam I. The impacts of total system design factors on human performance in power plants, American Journal of Applied Sciences, 2005;2(9): 1301-04.

Iranian Journal of Health, Safety and Environment e-ISSN: :2345-5535 Iran university of Medical sciences, Tehran, Iran