Experimental Characterization of Demolition and Repair Contractors by Community Ecological Indicators: Utilization for Asbestos Countermeasures

Abstract

To utilize asbestos countermeasures by the local governments, characterization analysis was conducted to the reports by demolition and repair contractors by experimental application of community ecological index. The results showed that " building type " and " geographical range " was strongly associated with the increase or decrease in the number of works for demolition contractors and reform contractors, respectively. This indicated that they had different characteristics. In addition, it was suggested that the niche overlap index among demolition contractors with illegal activity records tended to be higher than that without the records.