Browsing by Author "Shahzad W"
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- ItemBarriers And Enablers For Supply Chain Integration In Prefabricated Elements Manufacturing In New Zealand(Auckland University of Technology, 2020) Sooriyamudalige N; Domingo N; Shahzad W; Childerhouse P; Shahzad, WM; Rasheed, EOThe attention on prefabricated modules and components is resurging in the New Zealand residential construction industry. This is driven by its relative benefits and technological advancements. However in spite of this attention, there has not been commensurate understanding of its manufacturing supply chain and the enhancement of their performance. Similarly, there has been little research considering the supply chain and supply chain integration in module/component manufacturing in residential construction in New Zealand. Therefore, this paper presents a comprehensive overview of the modular manufacturing process and the barriers and enablers for supply chain integration in module manufacturing. The identified barriers are discussed with their relevant enablers. Information for the study investigation was collected through twelve semi-structured face to face interviews with prefabrication experts. The information obtained was analysed using content analysis that enabled the development of a framework that illustrates barriers and enablers for supply chain integration. Ad-hoc relationships, poor planning and scheduling, transporting of volumetric modules and information sharing are a few significant barriers in the manufacturing process of modular bathroom pods and wall panels in New Zealand. The proposed framework provides a guide for the wall panel and bathroom pods manufacturing companies to improve integration across their entire manufacturing process.
- ItemBlockchain technology applicability in New Zealand’s prefabricated construction industry(2022-03-30) Bakhtiarizadeh E; Shahzad W; Poshdar M; Rotimi JOBDifferent industries are modernising their systems and introducing innovations to their management practices. However, the construction industry is recognised for its lack of technological systems on which the success of this sector is deemed to be heavily dependent. Previous studies have focused on enhancing the off-site construction supply chain. However, studies on the importance and utilisation of technology in this sub-sector are scarce, predominantly where the efficiency of off-site supply chain management is stalled as a consequence of the slow implementation of technology. Thus, this article employs an exploratory approach by providing insight into the applicability of blockchain technology in New Zealand's off-site construction and demonstrates the benefits associated with the adoption of this technology. A literature review was used to identify stakeholders' interrelationships in different stages of prefabrication projects. Then, a pilot interview from industry experts followed by a questionnaire survey was used to determine the involvement of stakeholders in different phases and the benefits that blockchain technology can bring to this industry. The results indicate that using blockchain as a secure information management system could improve the integration of prefabrication supply systems by producing a collaborative atmosphere amongst the organisations involved.
- ItemPanellised prefab's benefits(Building Research Association of New Zealand (BRANZ), 2018-02-01) Shahzad W
- ItemPotential of Modular Offsite Construction for Emergency Situations: A New Zealand Study(MDPI, 2022-11-14) Shahzad W; Rajakannu G; Ghalenoei NKNatural disasters cause significant adverse social and financial impacts by damaging homes and infrastructure. These disasters also need a quick and immediate solution to post-disaster housing problems, to provide temporary housing services for short-term disaster relief and reconstruction of lost and damaged houses for complete recovery. Reconstruction of new permanent housing for disaster victims is one of the most time-consuming post-disaster activities. However, time is a vital consideration that should be minimized for the reconstruction of houses for affected populations. Modular offsite construction technology has the potential to enhance the post-disaster housing reconstruction process due to its intrinsic characteristics of time-efficiency. This study aimed to assess the potential of the modular offsite construction method as an approach that could promote the design and construction process of post-disaster reconstruction in New Zealand in emergencies. An extensive literature review has been carried out to evaluate the features of the modular construction method, which can add value to the post-disaster recovery phase. To evaluate the suitability and viability of modular offsite construction for post-disaster reconstruction and to find substantial obstacles to its implementation, feedback was collected and evaluated using the multi-attribute methodological approach by performing a national survey of construction industry experts in New Zealand. Semi-structured interviews with New Zealand experts were then followed to confirm and validate the questionnaire findings. The findings indicate that modular offsite construction technology is a viable solution for providing housing in emergencies or during post-disaster reconstruction in New Zealand, with its time-efficiency and ability to overcome the challenges of the current traditional method by its specific advantages. Reduced need for onsite labor, overcoming local labor resource constraints affected by the disaster, and enhanced productivity due to a controlled environment are the advantages of the modular offsite technology, which are discussed in this research.
- ItemRisk identification, assessment, and allocation in PPP projects: A systematic review(MDPI AG, 2022-07-27) Rasheed N; Shahzad W; Khalfan M; Rotimi JOBPublic private partnerships (PPPs) have gained widespread adoption as an innovative way of procuring public infrastructure projects over the last two decades. Risk identification, assessment, and allocation have received considerable attention from researchers due to the risk heavy nature of PPP projects. Adoption of PPPs has triggered a sudden increase in research interest in the area in recent years. This study attempts to provide an updated systematic review of literature related to risks in PPPs using a PRISMA flowchart. The results of the study offer some valuable insights into the future and current state of research. The study found that the focus of research on PPPs has shifted from an overall risk identification and assessment approach to individual risk analysis. Moreover, this research trend is on the rise in developing countries, and that quantitative methods for risk management in PPP research and qualitative methods in practice are preferred. In developed economies, due to negative public sentiments, transparency concerns, and arguments of value for money not being achieved, PPPs are becoming less popular. For these reasons a shift to availability-based payment mechanisms such as in Design-Build-Finance-Maintain (DBFM) from traditional revenue-based mechanisms as in Build-Operate-Transfer (BOT) has been observed. These shifts in research trends and practice offer researchers future opportunities to investigate these relatively newer approaches.
- ItemThe H&S case for prefab(2019-02-01) Shahzad W; Rasheed E
- ItemTowards Effective Implementation of Carbon Reduction Strategies in Construction Procurement: A Case Study of New Zealand(MDPI AG, 2022-09-30) He P; Bui TTP; Shahzad W; Wilkinson S; Domingo NIn light of climate change, the construction industry plays a crucial part in alleviating carbon emissions and other environmental impacts. The focus on improving the public procurement process poses an important opportunity for the successful implementation of carbon reduction strategies in construction projects. There is a growing body of literature mapping green and sustainable procurement practices in construction. However, previous studies have not treated the implementation of procurement in a particular area, such as carbon reduction, in much detail. This study aims to investigate the implementation of construction procurement incorporating carbon reduction strategies, with a specific focus on the public sector in New Zealand. The research was conducted through 13 semi-structured interviews with construction procurement experts in New Zealand. The results shed light on the current implementation of carbon reduction strategies in construction procurement and its challenges, such as a lack of knowledge and ambiguous procurement guidelines and documents. It also emphasises the importance of (1) well-developed carbon reduction evaluation criteria, (2) specifying a budget for carbon-related initiatives, and (3) the prerequisite of a high level of innovation in the procurement document. The study adds to the rapidly expanding field of carbon reduction construction procurement by providing a deeper insight into the way carbon reduction strategies are effectively implemented in the procurement process.