The construction sector in Malaysia has been facing challenges in productivity due to the increase in greenhouse gas (GHG) emissions. This study aims to enhance the usage of low-carbon building materials among construction professionals so that the carbon emission and GHG can be reduced during the early stage of construction. The scope of this research involved main parties in the Malaysian construction industry, represented by fifty professionals including contractors, consultants, and architects with a focus on low-carbon building materials. Procedures in this study involved a literature review on low-carbon building materials in the construction industry followed by a questionnaire survey with analysis using One-way Analysis of Variance (ANOVA). Major study findings indicated that there is a significant need for increasing the awareness of low-carbon building materials, as this is vital to introduce the concept of sustainable development and consequently cutting down carbon emissions to all parties working in construction. The study also suggested that barriers in adoption also prevent alternative material choices as a means of mitigating embodied carbon emissions. Many of these barriers are common across materials with uptake restricted by lack of demonstration projects, regulation, high costs, shortage of skilled labor, lack of design knowledge, time constraints, and lack of knowledge on LCA. The results are significant as the construction industry can seek to overcome these barriers by providing more information on material performance, design training on alternative materials, cost reduction on low-carbon materials, and more demonstration projects as well as case studies. From the work in this study, the industry must also share the knowledge on embodied carbon and implement regulations that will limit embodied carbon. The industry must adopt a business case strategy in encouraging greater value in assessment schemes to adopt low carbon building materials.

Purpose: The construction industry is a major economic driver in Malaysia, playing a pivotal role in the developing nations economic growth. Malaysia's reliance on labor-driven construction practices often sees local industry lagging in adopting technological advancements common to the construction sector on a global scale. This study investigates the challenges faced by project players in using new construction industrial revolution (IR) 4.0 technologies and the difficulties in implementing these technologies in construction projects.Design/methodology/approach: A quantitative survey was distributed to 183 practitioners in the Malaysian construction industry. The collected data (N = 121) has been analyzed using statistical software to calculate relative importance index values for the identified factors. A triangulation approach to validate the factors obtained from the survey was conducted with an expert group to ensure there were no additional considerations identified in the study.Findings: The study results show that the main factors in adopting construction IR 4.0 technologies are 1) high implementation costs, 2) hesitation to adopt technologies, 3) lack of standards, 4) legal and contractual uncertainty and 5) complexity. By investigating these factors, cost and regulation issues can gradually be resolved, with construction firms implementing new technologies, educating workers and ensuring government involvement in training for skill development to support IR 4.0.Originality/value: The outcome of these efforts to resolve construction productivity would be beneficial in their industry impact on practice and digital transformation. Additionally, the results add to the body of knowledge for construction practitioners and technology developers to work together efficiently on the implementation of construction 4.0 technologies.

Large infrastructure project is one of significant category in the development of Malaysian construction industry. This type of project has been recognized as a high complexity project with numerous construction risks, large cost involvement, highly technical requirements and divers of resources. Besides, the development of large infrastructure such as highway, railway, Mass Rapid Transit (MRT) and airport are also needed a large investment of public and private sector. To accomplish the development successfully, several challenges has to be determined prior the project commencement. To date, a comprehensive assessment of key success criteria particularly for large infrastructure in developing country such as Malaysia is still not systematically defined and therefore, it needs further investigation. This paper aims to explore the potential success criteria that would be useful in gauging overall performance of large infrastructure implementation particularly in developing country. Previous successful criteria studies were used to develop a conceptual framework that possibly suitable for measuring large infrastructure performance. The findings show that successful criteria of infrastructure projects implementation could be grouped according to several key elements as it seems significant to the participants in prioritizing project challenges more systematically.

Purpose: The adoption of green building concepts and practices is rapidly gaining momentum globally due to their tendency to mitigate adverse effects of construction activities on the environment. The purpose of this study is to examine the challenges and benefits of implementing green building development in Nigeria.Design/methodology/approach: Primary data were collected from questionnaires administered to 122 participants selected using stratified sampling techniques in North-East Nigeria. Semi-structured interviews complemented survey findings with proposed solutions. The quantitative data were analysed using descriptive statistics to identify the benefits and challenges, while thematic analysis was used to identify effective measures to the challenges of green building.Findings: Results show that “conservation of natural resources”, “reducing maintenance” and “heightened aesthetic” were rated higher as environmental, economic and social benefits, and thus were significant to green building development. The study revealed “economic issues”, “government issues” and “absence of standard assessment system” were the key factors as internal, external and general challenges to green building. Most practical solutions were related broadly to policy, awareness and support as measures to challenges of green building development.Originality/value: The study is imperative to bridge the knowledge gaps and provide empirical information for green building policy guidelines specific to North-East Nigeria’s built environment sector. The understanding of policy implications will assist in building regulatory and monitoring agencies in developing new internal management policies to inform the public and investors about the effects of green building development.

The focus on net-zero energy buildings (NZEBs) has been widely analysed and discussed particularly when European Union Parliament are progressively moving towards regulation that promotes the improvement of energy efficiency (EE). Additionally, it also to reduce energy consumption through the recast of the EU Directive on Energy Performance of Buildings (EPBD) in which all new buildings to be "nearly Zero-Energy" Buildings by 2020. Broadly, there is a growing trend to explore the feasibility of net zero energy in healthcare sector as the level energy consumption for healthcare sector is found significantly high. Besides that, healthcare buildings energy consumption also exceeds of many other nondomestic building types, and this shortcoming is still undetermined yet especially for developing countries. This paper aims to review the potential of NZEBs in healthcare buildings by considering its concept in design features. Data are gathered through a comprehensive energy management literature review from previous studies. The review is vital to encourage construction players to increase their awareness, practices, and implementation of NZEBs in healthcare buildings. It suggests that NZEBs concept has a potential to be adapted in healthcare buildings through emphasizing of passive approach as well as the utilization of energy efficiency systems and renewable energy systems in buildings. This paper will provide a basis knowledge for construction key players mainly architects to promote NZEBs concept at design stage for healthcare buildings development.

The increasing dependency on private motorised transportation has brought massive traffic congestion mainly in Batu Pahat, Johor. Apart from a few specialised industrial zones in Batu Pahat, most of the areas are near the urban areas. This is to ensure a smooth supply of manpower and raw materials to the manufacturing sectors. However, it led to an increase in the number of vehicles on the road that needs to be investigated further. This study attempts to investigate the current traffic condition, to examine the smart traffic control and integrated traffic information system and also to analyse the public transport, carpooling and vanpooling programs in Batu Pahat. Mixed methods were used for this research namely in document review, observation and questionnaire. The objectives from the outcomes are to decrease the number of private motorised vehicles, implement smart traffic control and provide public transport, carpooling and vanpooling program. In addition, it would be useful in reducing the amount of private motorised vehicles in the area to decrease traffic congestion and also to prepare Bandar Penggaram, Batu Pahat as a low carbon city in the future.