Browsing by Author "Mbachu, J"

Now showing 1 - 4 of 4
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    The delusion of green certification the case of green certified office buildings in New Zealand
    (Massey University, 14/11/2014) Rasheed, EN; Mbachu, J
    This paper examines the resultant consequence of Green certification of office buildings in the construction industry. With focus on Auckland city, New Zealand, it analyses various aspects of the modern Green office building through the review of available literature. Firstly, it investiga tes the recent shift in motivation for Green buildings as a result of the crusade for Green office buildings. This is followed by an analysis on the change in office buildings’ façade and indoor environment control measures in the 21st century. It is shown that the motivation for Green buildings has shifted from it being the right thing to do to the quest for financial benefits that are attributed to Green buildings. It is also shown that office buildings have become extensively glazed and highly dependent on artificial air conditioning systems. The consequences of these features are shown to be significant mainly in terms of the inefficient use of energy and indoor environment control dilemma. The effect on occupant comfort and expectations are also illustr ated. This review is part of a research that investigates Green certified office buildings in New Zealand.
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    Development of a multiple-criteria decision assessment framework for adaptive reuse case study building selection
    (31/10/2017) Yakubu, E; Egbelakin, T; Rasheed, E; Mbachu, J; Shahzad, W
    A number of theoretical methodologies for the selection of best adaptive reuse alternatives have been reported from empirical evidence. However, these frameworks have their distinct weaknesses when applied in the selection process for optimal adaptive reuse alternative. This paper therefore focuses on developing and testing an integrated multiple-criteria decision assessment framework for the selection of best adaptive reuse alternative from two case study buildings, in New Zealand, toward achieving sustainable town-centre living.
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    Predictors of building development cost trend: A New Zealand multi-level analysis
    (2017) Zhao, LL; Mbachu, J; Domingo, N; Shahzad, W
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    Resilient Productivity-Performance Constraints in New Zealand Road Maintenance and Rehabilitation Projects
    (2016) Karimian, S; Mbachu, J; Egbelakin, TK; Domingo, N; Wilkinson, S
    Road pavement maintenance and rehabilitation contractors (RPMRCs) face challenges inherent in performance-based rewards which seek to maximize tax dollar through whole-of-life best value in the project delivery process. To be successful, contractor’s productivity and performance should remain high and resilient to internal and external constraints in the project environment. There is little research on the priority constraints to productivity and performance in the New Zealand (NZ) roading sector. This paper presents preliminary findings of a study which aimed to investigate the key productivity constraints faced by RMRCs and the associated mitigation measures. Senior managers and directors of medium- to large-sized NZ roading contracting firms were interviewed in the process of an exploratory survey. Feedabck was analysed using the multi-attribute technique. Results revealed 70 productivity constraints faced by RPMRCs in New Zealand; In diminishing order of influence, these were aggregated into eight broad categories as follows: finance, workforce, technology/process, statutory/regulatory compliance, project characteristics, project management/project team characteristics, unforeseen circumstances, and other/ external factors.The report highlights the most influential constraints in the eight broad categories. The findings contribute to knowledge by revealing critical factors constraining productivity performance of NZ RMRCs and the associated improvement measures. New and more enriching perspectives were provided on how contractors could leverage their limited resources to addressing the identified key constraints.