Although green building technologies (GBTs) have been advocated in the construction 12 industry to address sustainability issues, their adoption is still plagued with barriers. The 13 barriers that hinder GBTs adoption need detailed investigation. However, few studies have 14 been conducted on the barriers to GBTs adoption in developing countries such as Ghana. 15 This study aims to investigate the critical barriers to GBTs adoption with reference to the 16 Ghanaian construction market. To achieve the objective, 26 barriers were identified from a 17 comprehensive literature review, and a questionnaire survey was performed with 43 18 professionals with green building experience. The ranking analysis results indicated that 20 19 barriers were critical. The top three most critical barriers were higher costs of GBTs, lack of 20 government incentives, and lack of financing schemes (e.g., bank loans). A comparative

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The analytic hierarchy process (AHP) has gained increasing attention in construction management (CM) domain as a technique to analyze complex situations and make sound decisions. However, AHP per se or its potential applications on CM problems are ill-defined within extant literature. The present paper reviews 77 AHP-based papers published in eight selected peer-reviewed CM journals from 2004 to 2014 to better define and delineate AHP application areas and decision-making problems solved within CM. The findings indicated that risk management and sustainable construction were the most popular AHP application areas in CM. It was also revealed that AHP (1) is flexible and can be used as a stand-alone tool or in conjunction with other tools to resolve construction decision-making problems; and (2) is widely used in Asia. In addition, the most prominent justifications for using AHP were found to be small sample size, high level of consistency, simplicity and availability of user-friendly software. This paper provides a useful reference for researchers and practitioners interested in the application of AHP in CM. Future research is needed to compare and contrast between AHP and other multicriteria decision-making methods; such work could reveal which techniques provide optimized solutions under various decision-making scenarios.

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Adopting green building technologies (GBTs) is critical to implementing sustainability within the construction industry. Many barriers, drivers, and promotion strategies influence the GBTs adoption. Appreciating these barriers, drivers, and promotion strategies and how they influence GBTs adoption is core to the successful promotion of GBTs adoption. However, there appears to be no studies developing quantitative models to explain how various types of barriers, drivers, and promotion strategies influence GBTs adoption, especially in developing countries such as Ghana. This research aims to investigate and model the influences of various types of barriers, drivers, and promotion strategies on GBTs adoption in Ghana. Data were collected through a questionnaire survey with 43 professionals with green building experience. Partial least squares structural equation modeling (PLS-SEM