the most effective safety codes on occupational accidents prevention in construction sites

Background: rapid pace of the construction projects have led to safety negligence on the part of the contractors causing higher numbers of accidents in construction industry. thus, over 2200 legal provisions have been established for the prevention of accidents on construction sites. not only contractors are unable to implement all provisions, but also it is hard for regulatory bodies to implement all rules, but they are also hard to remember and attend to by regulatory forces. therefore, identifying the set of codes with the highest effect on reducing accidents would be most beneficial. the aim of this study was to determine the most effective legal provisions in reducing accidents on construction sites in zanjan city.methods: in this study, 378 workrelated accidents in construction sites in zanjan city, already registered in the labor inspection authority, were investigated .then the codes that had not been respected in the construction industry accidents were identified. effective codes were determined based on their frequency on pareto chart.results: results indicated that out of 2200 legal matters, only 164 were broken in the accidents.conclusion: application of pareto chart could raise safety professionals' awareness of the specific broken codes in accidents, thus draw higher attention to the codes.