School of Environmental Technology (SET)

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School of Environmental Technology (SET)

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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.
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 of spatial distribution of worship centres using maximum location model in part of Minna, Niger state, Nigeria
(Journal of Advanced Research Design, 2017) E. A. Adesina, J. O. Odumosu, O. O. Morenikeji, O. G. Ajayi, E. S. Onuche, K. H. Babalola
The research uses the Maxisum Location Model to determining optimal location of existing worship centres in part of Minna Metropolis with the primary goal of locate p facilities such that the total demand-weighted distance between demand nodes and the facilities to which they are assigned is maximized (i.e. This model was adopted to solve the problem of noise generated from the sound-speaker) used by these worship centres during their services to the nearest neighborhood using 500meters as a distance factor. Since there are no restricted rules governing siting of worship centres it may not be located everywhere optimally, therefore, more areas were affected when a distance less than 500meters criteria was used while some areas are farther from the noise based on their location at optimal distance of 500meters and above. Spatial analysis was carried out on the sufficiency or otherwise of churches and mosques within the study area. Multi-criteria queries were carried out and results revealed that some worship centers need to be relocated because the area they were are too congested and also generate more noise to the environment through sound-speaker used. Recommendations were made to predict future deficiencies if relevant government agencies fail to provide more rules and regulations in siting of worship centers as the population increases
Application of Location-Based Service for Flood Vulnerability Assessment of Part of Minna, Niger State, Nigeria
(School of Environmental Technology, Federal University of Technology, Minna, Niger State., 2020-05-05) Adesina, E. A., Adewuyi, A. I., & Berthran, C. B
Flood disaster has been a global emergency issue, the cause my be traced to both natural and man-influence factors, the alarming increase in global warming has an underlying effect on glacial melting, sea level rise etc., these, coupled with the effect of human activities such construction along floodplain, deposit of waste in rivers etc., have pose a threat not only lives but putting properties into danger. To alleviate the effects of this flooding, emergency agencies and individuals must be informed about the status of this emergency. Flood vulnerability status is thus a reliable solution to such a problem. How will individuals get the current vulnerability status of their current locations? The research revolves around creating an android application capable of indicating the vulnerability to flooding points within the study area. Data sources include the administrative map, Digital Elevation Model, and Landsat Imagery with bands 6, 7, and 8. ArcGIS software was used to produce the study area's flood vulnerability information and database. Different elevation ranges: very low, low, moderate, high, and very high) were classified to determine the flood vulnerability status. The Android application was developed using Android Studio. The location-based service in the mobile device helps to correlate the longitude and latitude information of points within the study with the database to determine the vulnerability status of an area to flooding on an average scale. It also stores such details. The results show that the study area is a relatively low terrain and is more vulnerable to flooding, with very low and low terrain having a percentage of 18% and 36%, respectively. The result also shows that only 11% of the study area is built up with vegetation, and farmland has a percentage of 18% and 22%, respectively. Although it was discovered that the flood vulnerability assessment can only be done within the study area, updates can be made to enable it to work for other areas.
Assessing the risk of soil loss using geographical information system (GIS) and the revised universal soil loss equation (RUSLE)
(2024-09-30) Ekundayo Adesina, Oluibukun Ajayi, Joseph Odumosu, Abel Illah
Soil erosion poses a significant environmental challenge in many developing nations, and critically evaluating the threat of soil erosion is paramount for sustainable land management practices. This study aims to identify the contributing factors to erosion and estimate the amount of soil loss in the Bosso Local Government Area of Niger State, Nigeria, using the Revised Universal Soil Loss Equation (RUSLE) model. Factors like rainfall erosivity (𝑅), soil erodibility (𝐾), topography (𝐿𝑆), cover and management (𝐶), and support practices (𝑃), were integrated into a Geographic Information System (GIS) environment to generate variable layers. The estimated values of 𝑅,𝐾, 𝐿𝑆, 𝐶, 𝑎𝑛𝑑 𝑃 ranged between 438.866 and 444.319 MJmmha-1 h-1 yr-1, 0.06 to 0.015 megajoules per hectare hour megajoules-1 hectare-1 millimeter-1, 0 and 572, 0 to 0.2, and 0 to 1, respectively. GIS raster calculations derived from these factors revealed a mean estimated soil loss rate of 0-6672.83t/h/yr-1 (tons per hectare per year). Notably, rainfall emerged as the most influential factor driving soil erosion within the study area. The study highlights the necessity for immediate intervention to mitigate soil erosion in the study area. Furthermore, to formulate effective conservation and management strategies, this study advocates for further research prioritizing severity analysis areas and estimating sediment loss across the region.
Assessment of Soil Erosion Susceptibility using Multi-Criteria Analysis
(Environmental Technology and Science Journal (ETSJ), 2024) Adesina E.A., Ajayi O.G, Odumosu J.O. & Kolade T.S.
Soil erosion is a significant challenge for the environment and economy, especially in erosion-prone areas which makes sustainable soil management very crucial. This study uses the Universal Soil Loss Equation (USLE) to identify areas susceptible to soil erosion and estimate soil loss. The USLE considers various factors, such as slope characteristics, vegetation management, soil erodibility, and rainfall erosivity. It uses several data sources like soil composition, precipitation patterns, digital elevation models, land usage, and vegetation cover. The study classified erosion-prone zones into low, medium, high, and very high vulnerability categories using the Analytical Hierarchy Process (AHP) as part of a multi-criteria analysis. The findings reveal that the study area experiences an average annual soil loss rate of 3186.6 tonnes per hectare per year. While 83.3% of the study area has the lowest soil loss rate, though the regions could still be vulnerable to erosion due to steep slopes, high rainfall, and gullies. The Geographic Information System, USLE, and diverse data sources help identify erosion-prone areas with potential soil loss. The study's results are valuable for policymakers and farmers as they provide a foundation for targeted strategies to prevent erosion in the study area and similar regions.
Bathymetric Survey and Volumetric Analysis for Sustainable Management Case Study of Suleja Dam, Niger State, Nigeria
(Journal of Environment and Earth Science, 2014) H. A. Samaila – Ija, O.G. Ajayi, N. Zitta, J.O. Odumosu, A.A. Kuta, E. A. Adesina. P. Ibrahim
Ocean floor and the shape of the shoreline are major influencers of the changes in tidal propagation. Bathymetry; a survey operation aimed at determining the nature of the underwater level and topography of a water body’s bed level plays a cogent role in the determination of both the shape of the shoreline and the ocean floor thereby aiding the monitoring and spatio-temporal modelling of the changes in tidal propagation as much as it ensures the availability of hydro-data which is the foundation of a Maritime Database Management System (MDBMS). This work presents the findings of the bathymetric survey and volumetric analysis of Suleja Dam located in the North central Region of Nigeria. The Differential Global Positioning System receiver (DGPS) (Promark 3), automatic level, echomap 50s in conjunction with the engine boat were used during this research. The data acquired was processed using the GNSS solutions software with the chart plotted in surfer 9 software environment. The surface area of the dam was discovered to be 24.64ha less than the designed area. Also the volume of water was found to be 3.6 x 106m3 in contrast to the design volume of 34.7x106m3. It was also observed that the lowest water depth was 0.56m and the highest water depth was 22.06m, therefore a difference of 5.94m was obtained as against the initial construction depth of 28.00m. The undulating nature of the reservoir bed and the difference in volume of water and surface area covered by the dam are pointers and clear indications of sedimentation and siltation process going on in the dam.
Comparative Assessment of SRTM and UAV-Derived Dem in Flood Modelling
(Environmental Technology & Science Journal, 2021-12) Adesina E. A, Musa A, Ajayi O. G, Odumosu J. O, Opaluwa Y. D & Onuigbo I. C
Flooding is one of the most devastating natural disasters occurring annually in many parts of the world. This study investigates the performance of DEM with different spatial resolution in flood modelling along the floodplain of Shiroro dam, Nigeria. Three different DEMs of 30 m, 15 m and 3 m spatial resolution covering the study area were investigated. The performance of the DEMs for flood modelling was evaluated with the aid of flood inundation modelling (3d Analyst) tools in the ArcScene environment of ArcGIS 10.4 using results obtained from the shallow water St. Venant’s equation. The shallow water St. Venant’s equation was implemented in MATLAB software using the given river bathymetric information obtained from the dam authorities. The study determined the discharge quantity and flow velocity at some identified nodes along the river and its tributaries, thus, providing a basis for determining possible flood levels within the study area. Three flood levels were identified for each of the three used DEMs. For the original and re-sampled SRTM DEMs, the identified flood levels were 200 m, 250 m and 280 m, while for the UAV-derived DEM, 150 m, 205 m and 250 m were identified as the flood levels. Flood events covering the three identified flood levels were then simulated in ArcScene to estimate inundated settlements within the study area. The original 30 m and 15 m resampled resolution SRTM DEM had maximum and minimum height values of 612 m, 125 m and 585 m, 136 m, respectively. In contrast, the UAV-derived DEM shows different characteristics, with maximum and minimum values of 497.22 m and 113.53 m, respectively. Further analysis showed that while the UAV-derived DEM reliably predicted the flood risk situation due to its high resolution, the other two DEMs over-predicted the flood risk situation of the area.
Condition Surveys and Assessment of Buildings: A Review of Approaches Adopted
(Proceedings of the 5th International Conference of School of Environmental (SETIC 2024), October, 2024, School of Environmental Technology, Federal University of Technology Minna. PMB 65, Minna, Niger State Nigeria., 2024-11-07) Abass Abdulshakur; Olubajo Oluseun Olukemi
Building condition surveys and assessment is increasingly becoming an important issue. This is because people spend a lot of time residing or working in buildings and knowledge of the condition of a building can reduce the likelihood of fatalities in the event of a disaster or building collapse. Research on building condition surveys and assessment tends to adopt varying approaches that seems to be contradicting. This study aims at examining the dominant research approaches on building condition surveys/assessment and to underline their assumptions, limitations and arguments. A review of the literature on condition surveys and assessment of building is executed. This literature is categorised into major themes, synthesised and the typical focus is challenged. The results show that four dominant approaches have been adopted in literature namely: model-based approach, fuzzy theory approach, condition index approach and the digital approach. The study argues that a combined or hybrid approach provides an alternative approach that will unearth reliable data on a building that can be triangulated or validated by comparing the different data on the condition of a building.
Construction Programmes and Programming: A Critical Review
(Emerald Reach Proceedings Series, 2019-05) Olubajo, Oluseun Olukemi; Hughes, Will; Schweber, Libby
Purpose–The purpose of the study is to explore the dominant ideas in research on the management of time in construction. The focus of research has been to improve techniques for optimising the timing and sequence of activities. Design/Methodology/Approach– A critical review of research on construction time management, challenging the typical focus. We examine the assumptions different authors make, underline the limitations of the dominant research approaches and examine the prospects for developing a new approach to researching these issues. Findings– The dominant approach in literature focuses on unique activity traits in construction planning and measurable patterns between time-related variables. This assumes that time in construction can be managed by changing the way activities are calculated. These approaches have not been correlated with improvement in performance. Social practice theory may help to explain how programmes figure as one of many objects used during construction. Research Limitations/Implications– The focus is on reviewing indicative literature from key journals in construction management. The implication is that research is needed about how such documents are used in practice, which goes further than optimising plans in theory. Practical Implications– Future research could focus on understanding the context of construction planning practice and shift the debate from a focus on optimisation to practice. Originality/Value– An interpretivist approach with a focus on how tools such as planning documents are used on site. Social practice theory may provide a clearer explanation of the place of construction planning within the practice of construction management. This could provide solutions that deal effectively with stakeholder expectations around timely completion of construction projects.
Equipment Acquisition and Maintenance Capability of Construction Firms in Abuja, Nigeria
(ATBU Journal of Environmental Technology, 2024-06-01) Olubajo Oluseun Olukemi
Research into construction equipment tends to focus on output and criteria for selection. However, investigations that examine the capability of construction firms to acquire and maintain equipment are limited. This study examines the capability of construction firms to acquire and maintain equipment in Abuja, Nigeria. A survey approach was adopted, and data was obtained through self-administered questionnaires to 45 construction practitioners from 45 construction firms purposively sampled in the Federal Capital Territory Abuja, Nigeria. The study used descriptive statistics to analyze the capabilities of firms, and the results showed that the method of acquisition ranked as the highest factor, with a mean score of 4.70, which affects the equipment management capability of firms. The results also showed that 65% of firms cannot outright purchase construction equipment, 56% rely largely on renting, and 62% often adopt an outsourced maintenance approach rather than in-house maintenance. This explains why many construction projects do not always benefit fully from the potential or output of construction equipment. The study argues that construction projects can benefit maximally from the potential of construction equipment when construction firms leverage their capabilities and project resources prudently. The study contributes to knowledge by shifting the debate in the literature on equipment and focusing on capabilities. The study has implications for construction firms that seek to develop capabilities that can promote their business interest and competitive advantage.
Evaluation Of Factors Influencing Planning Efforts in Building Projects In Uyo, Nigeria
(Journal of Contemporary Research in the Built Environment, 2017-09-01) Olubajo, Oluseun Olukemi; Kuma, Shien
Purpose: This study investigates the factors influencing planning efforts in building projects in Uyo, Nigeria. The focus is specific on those factors that significantly affect the pre-contract planning stages of building projects. Design/Methodology/Approach: A survey approach was adopted in the collection of data among key professional consultants involved in building project planning and execution. A sample selection of Architects (32), engineers (43) and Quantity Surveyors (38) was drawn from 56 project sites and 9 consulting firms in the study area adding up to a sample size of 113 professional consultants. Structured questionnaire were administered with 81.4% response rate. Finding: The outcome from analysis of the square sum of ranks indicates factors such as client’s demand, client’s policy and planning procedures as the most significant factors influencing pre-contract building project planning efforts. Research limitations/Implication: The investigation of the factors was limited to those most applicable to the pre-contract planning stage of building projects. Originality/value: The conclusion is that clients have significant influence on the amount of efforts invested in planning and performance of building construction projects
Evaluation of the various orthometric height systems and the Nigerian scenario – A case study of Lagos State
(Journal of King Saud University – Engineering Sciences, 2015-09-12) J.O. Odumosu, O.G. Ajayi, F.F. Idowu, E.A. Adesina
Though considered the easiest in 3-Dimensional Point Positioning, the choice of a height system, especially in areas with spatially vast land mass, is rather a complicated choice. Orthometric heights are naturally and fully referenced to the actual Earth gravity field, but laborious to compute considering the required approximations of gravity variation along the plumb line from the surface to the geoid. Normal heights, on the other hand, are less laborious to compute and do not require actual gravity observations. Unfortunately, natural height systems are the only systems that can efficiently predict fluid flows. This paper has therefore examined the theory and practical possibility of replacing the use of Helmert Orthometric Heights with Normal Orthometric Heights within Lagos State. A maximum height discrepancy of 1 mm was obtained in the comparison of both systems, and thus their replaceability was found suitable to within 3rd-order geodetic accuracy.
Examining the Resilience of Construction Supply Chains to Disruptions Triggered by Covid-19 in Abuja,Nigeria
(Environmental Technology and Science Journal, 2024-06) Olubajo, Oluseun Olukemi; Olusola, Ezekiel Ayodeji
Disruptions are a concern to construction practitioners because it hinders work flow and construction activities. Research into disruptions in construction work tends to focus on the causes of disruptions in the flow of materials or labour. Another theme in the literature focuses on the relationship between disruptions and the performance of sectors in construction. However, investigations that examine the resilience of construction supply chains to incidents of disruptions are limited. This study aims at examining the resilience of construction supply chains to disruption triggered by Covid-19 in Abuja. The study adopted a survey approach, and data was obtained from structured questionnaires administered online to 90 stakeholders and 70 participants involved in different aspects of construction responded. The study found that contractual disputes and scarcity of materials ranked highest as the effects of disruption and that construction practitioners adapted to the disruptions majorly by reducing the number of material requisitions or by integrating equipment to cater for the shortage of workers. The study argues that members of construction supply chains responded to disruption triggered by Covid-19 with changes and adapted the way they worked or operated as acts of resilience
Exploring the Circle of Consumption Around Reused Construction Demolition Waste: Evidence from Construction Sites
(Proceedings of the 5th International Conference of School of Environmental (SETIC 2024), October, 2024, School of Environmental Technology, Federal University of Technology Minna. PMB 65, Minna, Niger State Nigeria., 2024-10-14) Akale, Sokolayam Favour; Daniel, Emmanuel Itodo; Olubajo, Oluseun Olukemi
Reuse of construction materials/components from dismantled structures is an economic sector that is scarcely regulated and highly fragmented. Research into the reuse of components or materials extracted tends to focus on maximising the benefits when deconstructing building or civil structures. However, investigations that explore the dynamics involved in dismantling a built structure, trade and reuse of materials or components extracted with multiple actors is limited. This study aims at exploring the circle of consumption around reused materials or components extracted from dismantled structures. The study adopted a mixed method approach, and data was obtained from observation, interviews and structured questionnaires from stakeholders involved in deconstruction works. The results revealed that there are patterns in the consumption of extracted components from demolished structures that should be regulated involving construction supply chains. The study argues that construction practitioners actively shape the way components extracted from demolished structures are repurposed and reused in subsequent construction works. The study contributes to the literature on circular economy and deconstruction by focusing on the dynamic relationship between members of construction supply chains and the reuse construction materials or components.
Factors Affecting Project Planning Efforts in Akwa-Ibom State
(School of Environmental Technology International Conference 2016, Federal University of Technology Minna, Niger State, Nigeria., 2016-05-12) Olubajo, Oluseun Olukemi; Idoro, Godwin; Jimoh, Richard Ajayi
All construction projects are unique and the amount of effort invested into planning activities will depend on the nature or the character of that project; as no two construction projects are identical. This prompted an investigation to evaluate the factors affecting the efforts invested into project planning activities at the pre-contract stage in Akwa Ibom state. The aim of the study is to evaluate the factors affecting efforts invested in project planning amongst selected consultants. A field survey involving 92 project consultants was adopted to achieve this objective. Data was collected using structured questionnaires and analysed using mean and relative importance index. It was discovered that the demands of the client, the clients budget and the construction method to be adopted ranked highest amongst others as having more impact on the measure of efforts invested in planning and indirectly on the performance of the construction Projects. The study suggests that all stakeholders collaborate more frequently by building stronger partnerships and aligning all actors as an integrated supply chain.
Geomorphic Assessment of Flood Hazard within the Urban Area of Chanchaga Local Government Area, Minna, NIGERIA
(International Journal of Environment and Geoinformatics, 2022-03) Ekundayo A. Adesina, Adewale I. Adewuyi, Abdumalik M. Olaniyi, Gbenga Morenikeji, Daniel O. Njoku
Pairwise comparison, Analytical Hierarchy Process (AHP), and Geographic Information System (GIS) have been recently used to assess flood hazard. It has been used to carry out Multi-Criteria Analysis (MCA) of various geomorphic factors by assigning weights based on the presumed impact of each factor on flooding. This study considered six factors which include: Slope, curvature, land cover, elevation, distance from river, and soil, using Rafinsenyi river in Chanchaga Local Government area, Minna-Nigeria, as a study area. Review of literature showed that methods of assigning weight are hypothetical and inconsistent; this research thus takes input from researchers in fields of hydraulics, hydrology, and disaster management. The weight with 0.029 as the least consistency ratio was used. Data used include: DGPS data, Satellite Images, Digital Soil Data. Landcover Maps, Digital Elevation Models (DEM), Soil Maps, and Profile Curvature maps were generated. A weighted overlay operation was carried out in ArcGIS to produce a Flood Risk Map. Livisol (Loam) soil reveals why farmers and traders indiscriminately settle along the floodplain. 6 of the 20 hectares of the study area lie between 216 and 220 metres above mean sea level, putting residential buildings at high risk of flooding
Impact of Landscape Components on User Wellbeing in the University Environment, Minna, Nigeria
(International Journal of Landscape Planning and Architecture, 2024) Deborah Oluwabunmi Alonge, Ogunbase Samuel Oluwatosin , Adesina Ekundayo
It is believed that one's ability to appreciate aesthetics, general health, and well-being are all impacted by the visible landscape. Lecture halls are a vital component of learning environments because they give lecturers and students a place to teach, learn, and do academic work. The purpose of this study is to examine the effects of landscape elements on user well-being in lecture rooms at the Federal University of Technology, Minna (FUTMINNA), Nigeria. Specifically, the study looks at the effects of natural light, vegetation, and outdoor views on user wellbeing. The study used a survey questionnaire approach to gather information from 200 staff members and students as a sample. The study found a number of crucial landscape elements that significantly affect students' well-being in lecture halls. According to the research, adding these landscape elements can greatly improve learning by boosting satisfaction overall, lowering stress levels, and enhancing concentration. Additionally, the study discovered that outdoor vistas and natural lighting were important in enhancing happy emotions and lowering negative ones. It also identified the particular types of flora that were most beneficial in enhancing wellbeing, such as trees and flowering plants. The study's findings can be applied to the design of lecture halls and other learning environments in the future, emphasizing the value of using landscape elements to improve user wellbeing and the learning process.
Managing Ambiguity in Construction Projects in Nigeria: The case for Selecting and Achieving Set Milestones
(Proceedings of the 8th International Project and Construction Management Conference (IPCMC2024)-Resilience in the Built Environment, Yildiz Technical University, Faculty of Civil Engineering, Department of Civil Engineering, İstanbul, Turkey., 2024-06) Olubajo, Oluseun Olukemi; Akande, Oluwafemi Kehinde; Daniel, Emmanuel Itodo
Investigations that explore the knowledge, selection, and influence of milestone management practices on the performance of construction projects are limited. This study examined the dynamics involved in managing ambiguity and achieving set milestones in construction projects in Minna, Nigeria. Using the quantitative method, questionnaires (n = 150) were distributed to obtain data from construction professionals who adopted milestone management practices on their projects, of which 119 responded. This resulted in a remarkable 79% response rate, and high data reliability (0.962) was obtained. Notably, the findings underscore the pivotal role of specific milestone selection criteria in building construction projects as identified and ranked by the respondents. Scope of work (0.861) ranked first; schedule estimation (0.845) and quality assurance (0.845) ranked second; budget significance (0.844) and resource allocation (0.844) ranked third. Further findings show a significant relationship (i.e., p-value = 0.00) between the dynamics of milestone management and the performance of projects. The study accentuates the urgent need for appropriate selection and management of milestones for timely project completion in Nigeria. With this widely known practice, construction professionals would be able to represent and manage work activities and achieve set time expectations regardless of project disruptions.