In a groundbreaking study published in the Mehran University Research Journal of Engineering and Technology, Emmanuel Udomiaye from the Department of Architecture at Alex Ekwueme Federal University, Ndufu-Alike, Nigeria, sheds light on the critical impact of manual energy and material haulage on the initial embodied environmental impact of residential buildings. This research is particularly pertinent as the construction industry faces increasing scrutiny regarding its environmental footprint.
The study meticulously examines the energy inputs associated with various stages of building production, from the mining of raw materials to manufacturing, transportation, and construction. Udomiaye emphasizes that “inadequate local data have hindered the formulation of effective climate change mitigation strategies,” making this research vital for the Nigerian context and beyond.
One of the key findings reveals that construction energy and carbon emissions account for 3.9% and 1.52% of the total embodied energy and emissions, respectively. Notably, manual labor contributes significantly, with an average manual energy intensity of 9.5 MJ/m² in the study area. This suggests that the reliance on manual labor not only affects productivity but also has substantial implications for the environmental impact of construction projects.
Transportation energy also plays a crucial role, accounting for 11.65% of the initial embodied energy and 6.95% of emissions. This highlights the need for more sustainable haulage practices within the sector. Udomiaye advocates for stricter regulations, proposing “the reduction and enforcement of age restrictions on imported used trucks from less than 15 years to under 5 years.” Such measures could significantly reduce the carbon footprint associated with transportation in construction.
The commercial implications of this research are profound. As the construction sector grapples with rising costs and increasing environmental regulations, understanding the energy dynamics of labor and transportation can lead to more sustainable practices that not only comply with regulations but also enhance efficiency and reduce costs. By adopting these recommendations, construction companies could position themselves as leaders in sustainability, potentially attracting clients who prioritize environmentally friendly practices.
This research not only serves as a wake-up call for the construction industry in Nigeria but also sets a precedent for similar studies globally. By addressing the gaps in data and emphasizing the importance of manual labor and transportation energy, Udomiaye’s work could shape future developments in construction practices, leading to a more sustainable and economically viable industry.
For more insights, you can visit the Department of Architecture at Alex Ekwueme Federal University.