School of Environmental Technology (SET)

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School of Environmental Technology (SET)

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A CATEGORICAL MODELLING APPROACH FOR DETERMINING RENTAL HOUSE PRICES IN LOW-INCOME NEIGHBOURHOODS OF NORTH-CENTRAL NIGERIA
(Adekunle Ajasin University, Akungba-Akoko, 2022) Rukaiyat Adeola Ogunbajo; Rakiya Ibrahim Wali
Over the years, researchers in developing countries have applied varied methodologies to study housing attributes and house prices. This study utilised the categorical modelling approach to determine the contributory effect of housing attributes on rental house prices in a major town in North-Central Nigeria. A total of 827 housing units were sampled by stratified and random selection. The data used were generated through a questionnaire survey. Nine housing attributes were found to sustain residential buildings in the study area and these accounted for 45% and 61% variance in the rental prices of two major low-income house types. Results revealed that the identified housing attributes significantly predicted rental values for the sampled house types. The mean of predicted rental values was further computed for each house type and compared to the means of the actual rental values collated in the course of data collection and presented with line graphs. Results showed predicted values that are reasonably similar to the actual rental values of the dwelling units. This suggested a reasonably accurate prediction of rental house prices using the categorical regression approach. The study recommended the model to house managers to ensure accurate house pricing.
A Comparative Analysis of Methods of Procuring Plant and Equipment in execution of Construction Projects
(Journal of Environment and Earth Science, 2015) Alumbugu, Polycarp Olaku , Saidu, Ibrahim, Wasiu Adeniran Ola-awo, Abdulmumin Abdulazeez Adedeji Nike Shakira
Contractors encounter a lot of problems in decision making on how to acquire plant and equipment to execute project to attain cost effectiveness to either purchase or to hire. The paper examined the relationship between procurement method preference and some selected variables (value of contract, contract size, contract type and contract period) A total of 75 questionnaires were administered to different indigenous construction companies in Abuja using the random sampling method. The data were analysed using simple spearman correlation, simple percentage and Relative importance index. It was concluded that it is more economical to hire plants that are not frequently put to use (specialized plants). High cost of equipment was the major reason contractors preferred to hire than purchase plant. It was recommended that government should make efforts to reduce hire rate and a national Centre for manufacturing of construction equipment be established partnering with stakeholders in the construction industry.
A Remote-Sensing Based Assessment of Seasonal Variation in Vegetation Quality and Productivity in Nimbia Forest
(Civil and Environmental Research, 2015) Ifeanyi C. Onuigbo, Joseph O. Odumosu, Ekundayo. A. Adesina, Nanpon. Zitta, Oluibukun G. Ajayi, Abdullahi A. Kuta
Agriculture plays a vital role in the growth and sustainability of developing countries, such as those in sub-Saharan Africa. Therefore, there is a need to monitor and assess the changes taking place in vegetation quality and productivity. The conventional ground survey method has proved to be highly tedious, laborious, and grossly limited, especially when large and densely forested regions are concerned. This paper presents a remote sensing-based approach as a real-time technology to determine the effect and extent of water loss caused by seasons on vegetation quality in Nimbia forest, Kaduna State. ENVI 4.7, ArcGIS 10.0, and Global Mapper Software were used, and a discrepancy of about 45% in the quality of vegetation has been observed between seasons in the region under study.
A Review of Geographic Information Systems Applications to Election Mapping in Nigeria
(School of Environmental Technology, Federal University of Technology, Minna, Nigeria, 2018-04-12) Okolie, C.J., Adesina, E.A., Irivbogbe, H.E., and Umar, A.A.
Elections are the major hallmark of democratic societies and many countries have begun applyi Geographic Information System (GIS) to manage the electoral process. GIS is also utilised by political parties to access the dispositions of voters and determine where to focus their campaign efforts. In a GIS, a combination of thematic layers of administrative areas such as population and land use can yield meaningful relationships or scenarios critical to decision-making processes and this makes it an exceptional tool for the management and analyses of election at all stages. Nigeria’s national electoral body, the Independent National Electoral Commission (INEC) has not been very proactive in leveraging GIS and Information Technology for ensuring hitch-free, free and fair elections in the country. GIS is key in enforcing the transparency of this system. This paper review the developments of GIS for election mapping in Nigeria and discusses their applications in Nigeria’s electoral system. The study shows that the status of GIS applications for electoral mapping in Nigeria is still in an infancy stage. The critical turning point lies in the full exploitation of GIS by the government’s electoral apparatus.
A review of the past, present and future of concrete admixtures
(Journal of Contemporary Research in the Built Environment, 2021) Ojo, Olaniyi Segun; Hassan, Ibrahim Ogiri; Ogunbode, Ezekiel Babatunde
Sustainable environment could be achieved with constructions using concrete that generates little heat. One way to achieve this is by using water reducing admixtures. More so, there is coming a time in some parts of Nigeria where normal strength concrete will be less required due to unavailable land space and high-rise buildings will require high or ultra-high strength concrete, produced with the aid of water reducing admixtures. Therefore, this paper reviews the past, present and future of concrete admixtures (water reducing admixtures) and the need to develop effective eco-friendly (natural) admixtures.
A Spatial Growth Assessment of Minna and Its Effect on Vegetal Cover
(School of Environmental Technology, Federal University of Technology, Minna, 2014-04-04) Adeleye, B. M., Medayese, S., Ayangbile, O. A., Shaibu, S. I., and Owoyele, G.S.
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A Study on the Application of GIS in the Assessment of the Impact of Infrastructure on Residential Value in Minna
(PACIFIC RIM REAL ESTATE SOCIETY, 2015) Ajayi Michael Tolu A; Kemiki Olurotimi Adebowale; Muhammed J K; Adama Unekwu Jonathan; Ayoola Adeyosoye Babatunde
The provision of infrastructural facilities have been established to have direct relevance to the changes that may occur in residential property values. However, various studies have not examined the application of geographic information system to assess the impact of the infrastructure on the property values. In this regard, this study sourced primary data on water as an infrastructure and the coordinates from the selected neighbourhood in Minna using hand held GPS and Kriging done with ARCGIS tool. The regression analysis conducted reveals that water based infrastructure with P value of 0.000 less than .005 p level and has a direct variation on rental value in the Bosso area of Minna. To this end the kriging analysis indicates that the area with darker colours possess more urban infrastructure (water based infrastructure) than those in lighter colours. This implies that the impact of provision of infrastructure that have direct influence on the residents of an area could be monitored with the use of geographic information system. The study therefore recommends the creation of a department in the geographic information system body to enable the use of GIS to monitored infrastructure development and impact on residents to enhance urban governance.
Adequacy of Road Furniture within the Major Highways in Minna Metropolis, Niger State, Nigeria.
(International Journal of Innovative Research and Advanced Studies (IJIRAS)., 2023) Idowu, Olusegun Owoeye,; Umaru, Emmanuel Tanko; Azih, Mercy Akare
Abstract: The absence of sufficient safety laws, poor infrastructure, and inadequate enforcement in low- and middle income countries account for 90% of the world’s road traffic fatalities. Road furniture are used to improve safety and control traffic along the roads. The aim of the research was to determine the adequacy of road furniture that control traffic along the major roads in Minna, Niger State. The road furniture considered were traffic signals, road signs, speed humps and roundabouts. The research investigated their adequacy in terms of distribution, sufficiency, and conformity to standards. Both primary and secondary data were employed in the study. The coordinate’s location points of all existing road furniture were collected using Global Position System and the points were determined on Google earth map covering the study area. The distribution, placements, composition and sizes of the existing furniture were determined using Geographical Information System techniques. The study revealed that the existing furniture are insufficient, although they are randomly distributed along the existing highways as 47% were conformed to conventional standards. The study recommended that efforts must be made in maintaining the existing road furniture and new one need be erected in places that possess dangers to pedestrians and other road users.
An Analysis of Relationship between Working Height and Productivity of Masonry Workers on Site
(Civil and Environmen Journal, 2014) Alumbugu, Polycarp Olaku,SAIDU, Ibrahim , Abdullahi Sa’adu Gulma, Wasiu Adeniran Ola-awo Abdulmumin Abdulazeez & Bolaji Suleiman
The analysed the relationship between working height and productivity of masonry worker on construction site by investigating two project sites. Data were also gathered by observing work activity on site. Time study form was design to record the various elements of the task performed and the time taken to complete each element over a period of observation at both floor levels for a period of six working days. A total of thirty structured questionnaires were administered on the factors affecting workers productivity on construction site. T-test was used to determine the difference between productivity at different level. The research concluded that the factors affecting\workers productivity are: Availability of materials, Weather, Gang size, Enabling environment, Height of work have strongly significant effect on the productivity of workers output on construction sites. A none statistically significant difference existed between the output of block laying at both floor levels but a statistically significant difference existed between the output of concrete work at first suspended floor slab and second suspended floor slab. It was also concluded that the output determined for Block laying was 12m2 /day, Concrete work 19m2 /day and16m2 /day at 1st suspended and 2nd suspended floors respectively. It was recommended that the result of this research should be used to provide information upon which planning, scheduling and cost control of block laying, plastering and concrete works can be carried out.
An Analysis of the Pattern of Land Development and Management in Niger State (1976-2006)
(The Estate Surveyors and Valuers .Nigerian Institute of Estate Surveyors and Valuers (NIESV), 2008) Musa, Haruna D.; Nuhu Mohammed Bashir
Recent land policy reforms in sub-Saharan Africa provided for the inclusion of customary tenure in land administration to improve tenure security for the poor and encourage land development. The failure of formal systems of land delivery to cope with the demands of rapidly growing urban populations has led to households in the urban areas of the developing world living in informal settlements characterised by extreme poverty and limited state capacity. This study analyses the pattern of land development and management in Minna in order to suggest ways to improve the administration and management of land in Niger State. The data for the study were collected from various sources. The design layouts of the built-up area of Minna town for the period between 1976 to 2006 were utilised. An extensive fieldwork was carried out to update information on the plots in the layouts to reflect the extent of development using four (4) classifications: Developed plots, Not developed plots, plots under construction, and plots with cases of prescribed landuse conversion. The extent of development(built-up area) in Minna was computed from the multi-dated layouts. 104 implemented layouts consist of 7,893 total plots implemented, 4,349(55.06%)plots were fully developed, while 2,599(32.93%) of the plots were not developed,672(8.51%)plots were still development or construction, and 273(3.46%) plots were encroached upon or claimed by the natives by reasons of non-payment or inadequate compensation. To mitigate the problems emanating from this, it is suggested that processing fees and other related charges be reduced and consideration given to the masses in the design and allocations, while the undeveloped allocated plots of land should be revoked and re-allocated to those who are ready for development.
An Appraisal of Household Domestic Energy Consumption in Minna, Nigeria
(IOSR Journal Of Environmental Science, Toxicology And Food Technology (IOSR-JESTFT), 2012-11-03) Abd’razack, N.T.A., Medayese, S.O., Matins, V. I., Idowu, O.O., Adeleye, B.M. and Bello, L.O.
One of the characteristics of African cities is uncoordinated urbanization with a trend of 4% annually, but the rate differs according to regions. Several factors are associated with urbanization such as lifestyle, consumption habit and pattern. The environment today is facing challenges from urbanization as consumption of resources such as land; water; energy, and air have changed to artificial environment. Energy consumption has been the driving force in global warming. Overtime, urbanization has been a great threat to sustainability of urban environment. However, kerosene and LPG that are supposed to be the major source of energy for cooking becomes unaffordable to low income households. This research was conducted in two residential areas of the identified neighbourhood and the choice of this neighbourhood is influenced by the fact that the phenomenon under study is more prevalent in the high and medium density localities. The effect of increase in electricity tariff, kerosene and LPG has shifted the focus of household source of cooking energy to biomass and this has been the cause of the environmental problems in the area which includes Indoor Air Pollution, Deforestation and Desertification. The analysis however shows a significant relationship between choice of energy and income. Keywords: Deforestation; Energy Consumption, Households; Environment; Urbanization.
An Appraisal of Household Domestic Energy Consumption in Minna, Nigeria.
(IOSR Journal Of Environmental Science, Toxicology And Food Technology, 2012-12-06) Abdrazack, N.T.A.; Medayese, S.O.; Matins, V. I.; Idowu, O .O,; Adeleye B.M,; Bello, L.O
One of the characteristics of African cities is uncoordinated urbanization with a trend of 4% annually, but the rate differs according to regions. Several factors are associated with urbanization such as lifestyle, consumption habit and pattern. The environment today is facing challenges from urbanization as consumption of resources such as land; water; energy, and air have changed to artificial environment. Energy consumption has been the driving force in global warming. Overtime, urbanization has been a great threat to sustainability of urban environment. However, kerosene and LPG that are supposed to be the major source of energy for cooking becomes unaffordable to low income households. This research was conducted in two residential areas of the identified neighbourhood and the choice of this neighbourhood is influenced by the fact that the phenomenon under study is more prevalent in the high and medium density localities. The effect of increase in electricity tariff, kerosene and LPG has shifted the focus of household source of cooking energy to biomass and this has been the cause of the environmental problems in the area which includes Indoor Air Pollution, Deforestation and Desertification. The analysis however shows a significant relationship between choice of energy and income.
An Assessment of Challenges to Land Accessibility for Urban Development in Minna
(Department of Geography and Planning Science, Faculty of the Social Sciences, University of Ado-Ekiti, Ado-Ekiti, Nigeria, 2012) Ayoola Adeyosoye Babatunde
Land is a central issue to man’s activities. But as population and affluence grow especially in our urban centers, there is an increase in the demand for land by government, private individuals and corporate bodies. This inevitably brings about the survival of the fittest syndrome and greater number of people in the urban areas still do not have access to formal land for private use regardless of the great powers endowed the state governments by the Land Use Act of 1978 to hold in trust and administer land for the common benefit of all Nigerians. This paper therefore examines the challenges to land accessibility in Minna, Nigeria. Findings revealed that 61% of the respondents own land while 39% do not own land. Out of the respondents that own land, 67.8% have developed their lands while 32.2 % of the respondents are yet to develop their lands. Lack of fund, lack of electricity, lack of access to land and shanty structures around undeveloped plots are the reasons why land owners are yet to develop their lands while Inadequate fund and lack of interest are the major reasons why respondents do not own land. The study reveals that there is significant relationship between the level of income group of respondents and land ownership in Minna. It also reveals that there is significant relationship between holders of certificates of occupancy and their level of income. Finally, the paper suggests that government should ensure provision of infrastructural facilities, payment of appropriate minimum wages and allowances to workers as well as ensuring safety of lives and properties of the people with the view to accelerating urban development at the study area.
An assessment of flood vulnerability on physical development along drainage channels in Minna, Niger State, Nigeria
(African Journal of Environmental Science and Technology, 2015-01-30) Musa Dalil; Nda Hauwa Mohammad; Usman Mohammad Yamman; Abdul Husaini; Sanni, L.M.
The occurrence of floods and its effects on human existence as well as the general environment has unfortunately been on the increase owing to human-induced climate change. Consequently, the vulnerability of the poor and the downtrodden has also increased; therefore the need to embark on sustainable human settlement development as well as awareness creation on the effects of flooding. As a result of this, this paper set out to analyze the causes of flooding in parts of Minna, with a view to providing solutions to forestall its impacts along the channels of River Suka. In order to achieve this, secondary as well as primary sources of data collection such as questionnaire administration and reconnaissance survey were undertaken. The data obtained from the questionnaires were analysed using the descriptive statistical method while the topographic and land use maps of Minna were digitized using the ArcView GIS package, which enabled the mapping of the Flood Risk Vulnerable Areas in Minna, Niger State. The result shows that human activities like construction on the flood plains, poor drainage network and relief of the area are primarily responsible for the perennial floods along the bank of River Suka. To this end, it was recommended that sensitization campaigns should be embarked upon by the government and stakeholders in order to create public awareness to the likely effects of flooding. The paper also recommended the monitoring by authorities, of water levels during the raining season, thereby allowing for the transmission of warning signals to the residents of the flood plains.
An Assessment of Housing Maintenance and Management in Federal Housing Estates in Abuja, Nigeria.
(Nigerian Institution of Estate Surveyors and Valuers, 2013) OGUNBAJO R. A.
This research examined the the management and maintenance of federal housing estates in Abuja with a view to establishing the etent of housing management in ensuring sustainable housing. It focused on selected federal housing estates to assess how well the eisting housing stock were managed. A sample size of 400 housing units was adopted in each of the sampled estates from a total population of 3,415and 3,494 using stratified random sampling technique. Questionnaire were administered on households that fell within the sample group, and centered on the condition of buildings, management responsibility, frequency of maintenance, availability and access to neighbourhood facilities and services, and general management approach among others. A responce rate of 92.75% and 91% was recorded in both estates. Surveys were also carried out to assess the condition of access roads, drainages, street lights and other neighbourhood facilities. Collected data were analyzed using frequency distribution and percentages. The study revealed that housing units and infrastructure presents varying conditions ranging from very good, good. fair, bad and very bad. It also revealed the extent of housing management and maintenance which is responsible for the preent outlook of the estates. The study reccommended that minimum maintenance standards be set for residents to ensure that houses are maintained in good and decorative states of repair, while also emphasizing the need for residents to adopt good maintenance culture.
An Assessment of Urban Change and Its Drivers in Suleja Local Government Area of Niger State, Nigeria
(CSID Journal of Infrastructure Development, 2023-06-28) Adeleye, B. M., Ssemwogerere, K., Mukwaya, P. I., Kiggundu, A. T., Omolo-Okalebo, F., & Kayondo, L. M.
The knowledge of urban change is critical to the management and planning of urban areas. Robust geospatial technologies have increasingly enhanced our understanding of urban change. This paper employs remote sensing and GIS data from the earth explorer data archive to assess the character and pattern of urban change in Suleja Local Government Area (Niger State in Nigeria) and its drives from 1987 to 2019. The nature and character of urban change are examined from the lens of the urban intensity index and the urban land use/cover change. Data from the geospatial techniques were corroborated with secondary data from the Niger State Regional Plan, Suleja Master Plan, and the Abuja Master Plan. The underlying drivers of urban change within this period were also examined. This study reveals that Suleja Local Government Area experienced unprecedented growth in its urban area from 1987 to 2019. Using Qiuying's mathematical model for the urban change intensity index, the study revealed that the urban change intensity index of Suleja developed from low urban intensity (0.16) to highly rapid urban intensity (0.73). The highly rapid urban intensity index witnessed in Suleja was dominated by an edge expansion urban form of change associated with urban sprawl. This study further reveals that the present physical development activities in Suleja are not sustainable. This study, therefore, recommends articulated urban planning for Suleja LGA; also, the outdated Niger State Regional Development Plan and Suleja Master Plan should be reviewed by the Niger State Government. Keywords: Population; Suleja; Urban Change; Urban Density; Urban Sprawl
An Evaluation of Post Occupancy of Public Office Buildings in Minna Urban
(Department of Mass Communication, University of Maiduguri, Maiduguri, Nigeria, 2011) Ayoola Adeyosoye Babatunde
Since humans spend more than 90% of their lives inside constructed environments and reasonable percentage of their active time in productive activities in such environments like offices, it is fundamental to know how office environments support workers productivity and how best they are satisfied with these environments. Post Occupancy Evaluation therefore has long been recognised as a method of measuring the performance of a building in use as well as provide information for upgrading or improving existing facilities. It is against this backgound that this work examines post occupancy evaluation of public buildings in Minna, Nigeria. The primary method of data collection was an extensive questionnaire combined with physical observation of office environments. The study reveals that there is no significant relationship between quality of office environment and workers productivity. Finally, the study suggests the involvement of workers at design decisions that affect their offices for there to be an enabling environment and perfect job satisfaction by workers.
Analysing the Knowledge Management Culture of Construction Firms in Abuja
(Environmental Technology and Science Journal, 2023-12) Olubajo, Oluseun Olukemi
Construction projects are temporal in nature and involves project managers assembling construction professionals that are often disbanded immediately a project is completed. This disbandment causes construction knowledge that firms accumulate from the experience of teams to be lost or go uncaptured. This is a concern for firms that need to retain knowledge to remain competitive and often compete for limited contracts. Research into construction knowledge tends to focus on the relationship between the culture of organisations and construction knowledge. A second piece of the literature focusses on the nexus between construction knowledge and organisational performance. However, investigations that examine the knowledge management culture in construction firms with a view to analyse various issues and factors involved is limited. Therefore, the aim of this study is to examine the knowledge management culture within organizations in the Federal Capital Territory, Abuja, Nigeria. A descriptive survey approach is adopted, and data is obtained through questionnaires in Abuja. The results showed that many construction firms struggle or fail to formally capture/share construction knowledge because many employees have little or basic knowledge of knowledge management techniques or tools and often rely heavily on face-to-face interactions to share knowledge. The study argues that a superior knowledge of as well as an increased adoption of knowledge management techniques and tools by employees can significantly enhance the ability of an organisation to share and capture construction knowledge to minimise knowledge loss.
Analysing the Physical Condition of Buildings: A Case Study of an Institution of Learning in Nigeria
(School of Environmental International Conference (SETIC 2024), School of Environmental Technology, Federal University of Technology Minna. PMB 65, Minna, Niger State Nigeria, 2024-11-29) Abass, Abdulshakur; Ogunbode, Ezekiel Babatunde; Olubajo, Oluseun Olukemi
Buildings depreciate with time and gradually perform less than they are expected. This is a concern for building owners and users. Research on depreciation of buildings tends to focus on identifying or categorising defects. However, investigations that examine the condition of public buildings that inhabit large and frequent users is limited. The aim of this research is to analyse the physical condition of public buildings in an institution of learning. This study adopts a case study approach involving physical observations and the condition rating of three buildings in an institution of learning in Nigeria. The results of the analysis showed that there were several similar defects on the walls, floors, roof, electrical and mechanical services. The results on the condition of the buildings showed average condition index values indicating that the buildings were in moderate condition with the laboratory in a better condition with an average condition rating of 0.58 and the offices with an average condition rating of 0.52 and the classes with an average condition rating of 0.44. The study argues that improving the condition or state of the buildings would lead to enhanced building performance.
Analysis And Prediction Of Cost And Time Overrun Of Millennium Development Goals (MDGS) Construction Projects In Nigeria.
(Developing Country Studies, 2012) Edoka Augustine Ijigah; OGUNBODE Ezekiel Babatunde; Moshood O. Ibrahim
Abstract The paper focuses on the analysis and forecast of cost and time overrun of MDGs construction projects in Nigeria. Twenty five MDGs construction projects from (2006-2009) were critically investigated and time and cost overrun of the project were studied. The Statistical Package for Social Scientists (SPSS) 19.0 version was used to analyse the variables using Paired t-test and simple regression at 95% confidence limits. The analysis was based on the adaptation of requisition method. The validity test on the efficiency of the model was highlighted using the confidence interval to enhance the application of the models. Mathematical models were developed. The findings shows that there is a significant different between the total contract sum, cost overrun, total contract duration, and time overrun for the MDGS projects. The study suggests acute need for government to engage in proactive strategic planning and approaches to keep construction project cost and time within reasonable limit for the actualization of MDGs policy of development and environmental sustainability.