... is to put forward a new approach by combining the gray comprehensive relation calculation method in the gray system theory with the traditional FHA in order to deal with the problem of “little data, poor information.” Design/methodology/approach This paper combines FHA, 1–9-scale method and gray...

... tree analysis Gray numbers Gray system theory Of all industries, the construction industry, as an economic activity, is associated with the highest statistics for work-related hazards. Indeed, according to a report published by the Department of Labor in 2012, 48 percent of work-related...