Building information modelling (BIM) adoption is vital to the productivity and competitive nature of the construction sector. However, BIM adoptions have not been…
Building information modelling (BIM) adoption is vital to the productivity and competitive nature of the construction sector. However, BIM adoptions have not been generally embraced by many architecture, engineering and construction (AEC) firms, particularly in developing countries. Moreover, studies that investigate the important drivers to BIM adoptions among construction professionals through quantitative approach are limited. The purpose of this study is to address the aforementioned gap.
This study involves a literature review, a pilot study and a questionnaire survey. The primary data were carried out using structured questionnaires distributed to four different BIM adopter AEC firms. These comprised architectural firms, facility management firms, quantity surveying firms and structural engineering firms in Lagos, Nigeria. Data obtained were analysed using mean score, standard deviation, Kruskal–Wallis test and factor analysis.
The study identified 23 drivers to BIM adoption, and the relative importance of the identified drivers was gauged from each selected BIM adopter AEC firm category. The result of the Kruskal–Wallis test showed that there is no statistically significant difference in the perceptions of the four selected AEC firms in the mean ranking of the identified 23 drivers to BIM adoption. The findings from factor analysis categorized the identified drivers into two major factors to include cost and time savings, improved communication, and BIM awareness and government supports.
The study empirically identifies important drivers to BIM adoption that will be useful for construction stakeholders to formulate strategies to adopt the full implementation of BIM in the AEC firms of Nigeria and other developing countries. Also, this study is important as it identifies, analyses and compares the drivers to BIM adoptions from four different AEC firms, thereby providing robust and more reliable findings.
The study findings will provide information to policymakers and construction stakeholders to make policy recommendations that are capable of positively influencing the widespread adoption of BIM in AEC firms in particular and the construction industry at large. This study is important because the studies that comparatively and empirically analyzed BIM drivers in AEC firms are rare, particularly in developing countries. Hence, this study could be used to benchmark future studies in developing countries.
The purpose of this paper is to investigate the food security status of 150 households in Osun state of Nigeria. The study area was chosen because relatively little energy…
The purpose of this paper is to investigate the food security status of 150 households in Osun state of Nigeria. The study area was chosen because relatively little energy consumption data are available concerning this geographical location.
The study used both primary and secondary data. The suitable households sample was chosen by multi-stage random sampling technique. The methodology employed to group the households into either food secure or food insecure is by comparing daily per capita calorie consumption by each household with the threshold daily per capita calorie requirement of 2,710 kcal/day/adult equivalent. This method has proven to be efficient in measuring food security at household level.
The results of the study reveal that majority of the households surveyed are food insecure that is their daily per capita calorie intake falls below the recommended daily per capita calorie requirement. The food insecure households constitute 54 per cent, surplus index of 0.36 per cent and food insecurity gap of 0.0038.
The greatest limitation to this study is the inability to collect data on the distribution of income, budget share on foods and socio-economic characteristics of the households to determine how their food security status is influenced due to impediments such as time, limited resources to collect a complete dataset used for the study. Also, recalling accurately the foods eaten in the last 24-hour was difficult for some of the household heads especially the aged ones and precise measurement of foods portion were also not accurate in some cases.
The findings of the study will help the stakeholders in food sector in policy formulations and also serve as reference for other researchers who will work on similar topic.
The revelation that majority of the households are lacking in calorie intake will provide guidance for stakeholders in food sector to put in place efforts that will improve balance between food production and accessibility.
The study used original data collected directly from the households for the study using structured questionnaires and the reference materials from secondary sources are appropriately cited. Also, it is worthy to note that not many studies have been carried out in the study area on food security especially in the rural areas.