“…A variety of decision making techniques have been used in construction method selection problems, each based on a different decision and optimization theory, e.g. genetic algorithm [43], artificial neural networks [49], evolutionary fuzzy neural inference systems [14], artificial intelligence techniques [55], multi-attribute utility theory [13], knowledge-based methods [5,47] and decision tree [50]. AHP based methods are also popular and effective tools in this context for the reasons outlined in the sequel.…”