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Abstract
Safety is a key objective of construction management, but construction safety management is complex due to various types of technical and management factors. If critical factors can be identified and corresponding measurements can be adopted, it will be more direct and effective to improve safety performance. In this paper, by using the system thinking method, construction safety management is considered as a system and decomposed into six subsystems and related management factors. The fuzzy fault tree analysis method was used to build a reliability analysis model and reveal the failure probabilities of factors in the safety organization management subsystem. Through a questionnaire survey conducted in Wuhan, China, the pivotal importance degrees and average occurrence probabilities of basic factors are figured out. On the basis of that, nine critical factors of the safety organization management subsystem are identified and corresponding improvement measurements are proposed. More, a case study of Hangzhou underground railway tunnel collapse accident in 2008 is conducted, which verifies that the framework of construction safety management based on system thinking can be a useful tool for identifying faults or failure reasons of construction safety management.
Highlights
Construction accidents occur frequently in the construction industry, and safety management has become the top priority of construction companies and project management (Lee et al, 2012; Zhang, Fang, & Wu, 2017)
According to the statistical reports released by the Ministry of Housing and Urban-Rural Development (MOHURD) of China, a total of 634 accidents occurred in the Chinese housing and municipal construction industry resulting in 735 deaths during 2016, while 692 accidents occurred resulting in 807 deaths during 2017, with an increase
Based on the previous researches, this paper explored how to comprehensively classify factors of construction safety management by using the system thinking method, and how to identify critical factors so as to guide safety management in practice
Summary
Construction accidents occur frequently in the construction industry, and safety management has become the top priority of construction companies and project management (Lee et al, 2012; Zhang, Fang, & Wu, 2017). Construction safety management is a big and complex issue with large amounts of tasks and factors It involves systemic planning and management of various safety elements, including safety standards, safety policies, safety programs, safety evaluation, incident reporting, and incident investigation (Choudhry, Fang, & Ahmed, 2008; Hinze, Hallowell, & Baud, 2013; Haas & Yorio, 2016). Different factors, such as terrible weather, complex geological conditions, design quality, schedule, and personal professionality all have impact on safety performance (Hinze, 1997; Mitropoulos, Abdelhamid, & Howell, 2005; Han, Saba, Lee, Mohamed, & Peña-Mora, 2014). Bad management may lead to hazards, injuries, and accidents, how to establish an effective safety management framework and prevent accidents become an urgent research topic
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