African Infrastructure Planning (Technical focus)
type: channel
description: African Infrastructure Planning (Technical focus) is a peer‑reviewed scholarly journal published under the Pan‑African Research Journals (PARJ) platform, advancing African‑centred and global research.
language: en
publication name: African Infrastructure Planning (Technical focus)
items: Time-Series Forecasting Model for Measuring Adoption Rates of Power-Distribution Equipment in Ghana
items: Methodological Assessment of Municipal Infrastructure Asset Systems in Ethiopia Using Panel Data for Risk Reduction Analysis
items: Time-Series Forecasting Model for Adoption Rates of Water Treatment Facilities in Uganda,
items: Methodological Assessment of Manufacturing Systems Efficiency in Ethiopian Plants Using Difference-in-Differences Analysis
items: Methodological Assessment and Quasi-Experimental Evaluation of Power-Distribution Equipment Systems in Ethiopia
items: Methodological Evaluation of Process-Control Systems in Uganda
items: Methodological Evaluation of Municipal Infrastructure Assets Systems in Rwanda Using Quasi-Experimental Design
items: Optimising Vaccine Distribution Networks in Zambian Rural Health Outposts Using Mathematical Models
items: Methodological Evaluation of Manufacturing Systems in Rwanda
items: Methodological Evaluation of Transport Maintenance Depot Systems in Uganda
items: Methodological Evaluation of Transport Maintenance Depot Systems in Tanzania Using Panel Data for Risk Reduction Measurement
items: Methodological Evaluation of Industrial Machinery Fleets Systems in Ghana Using Difference-in-Differences Model for Cost-Effectiveness Analysis
items: Multilevel Regression Analysis for Evaluating Cost-Effectiveness of Water Treatment Facilities in Ghana's Rural Settings
items: Solar Energy Infrastructure Development in Cameroonian Mountain Villages
items: Bayesian Hierarchical Model for Evaluating Efficiency Gains in Power-Distribution Equipment Systems in Uganda
items: Bayesian Hierarchical Model Evaluation for Yield Improvement in Tanzanian Manufacturing Plants Systems
items: Time-Series Forecasting Model Evaluation for System Reliability in South African Manufacturing Plants
items: Bayesian Hierarchical Model for Risk Reduction in Industrial Machinery Fleets of Uganda
items: Methodological Evaluation of Power-Distribution Equipment Systems in Rwanda Using Panel Data for Risk Reduction Analysis
items: Replicating Geotechnical Engineering Practices in Expansive Soils Across Sudan and Uganda
items: Methodological Evaluation of Municipal Infrastructure Assets Systems in South Africa
items: Multilevel Regression Analysis for Assessing System Reliability in Ugandan Manufacturing Plants Systems
items: Scoping Field Trial Replication for Water Treatment Facilities in Ethiopia
items: Methodological Evaluation of Transport Maintenance Depots in Rwanda
items: Methodological Evaluation of Manufacturing Plants Systems in Ghana Using Difference-in-Differences Approach

Time-Series Forecasting Model for Measuring Adoption Rates of Power-Distribution Equipment in Ghana
type: item
description: The adoption rates of power-distribution equipment in Ghana have been inconsistent over time, leading to inefficiencies and potential failures. A time-series analysis was conducted using an autoregressive integrated moving average (ARIMA) model to forecast future adoption rates. The model incorporates seasonal adjustments and includes historical data from various regions across Ghana. The ARIMA model showed a strong correlation with actual adoption rates, with the coefficient of determination ($R^2$) for the forecasting period being $0.85$, indicating that approximately 85% of the variation in adoption rates could be explained by the model. The time-series forecasting model demonstrated its effectiveness in predicting future adoption trends and can serve as a valuable tool for infrastructure planners in Ghana. Infrastructure managers should use this model to inform decision-making processes, particularly regarding equipment procurement and maintenance schedules. ARIMA, power-distribution equipment, forecasting, adoption rates, Ghana
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: econometrics
  topic: keywords
subject: ARIMA
  topic: keywords
subject: stochastic
  topic: keywords
subject: diffusion
  topic: keywords
subject: forecasting
  topic: keywords
subject: regression
  topic: keywords
creator: Abena Owusu Amenu
rights: Copyright (c) 2013 https://creativecommons.org/licenses/by/4.0/
date: 2013-01-07
publication date: 2013-01-07
doi: 10.5281/zenodo.18994416

Methodological Assessment of Municipal Infrastructure Asset Systems in Ethiopia Using Panel Data for Risk Reduction Analysis
type: item
description: The assessment of municipal infrastructure asset systems in Ethiopia is crucial for risk reduction strategies. This study employs a fixed effects model (FE) using Stata software, accounting for potential endogeneity issues with robust standard errors. Panel data from - across all regions of Ethiopia are analysed. A significant proportion (p<0.05) of municipalities showed improved risk reduction measures after implementing asset management systems. The integration of asset management systems in municipal infrastructure has led to measurable reductions in risk, with a notable improvement rate of 40% in risk assessment methodologies. Further research should focus on replicating the study across different regions and incorporating dynamic models for more comprehensive analysis. Ethiopia, Municipal Infrastructure, Risk Reduction, Panel Data Analysis The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Ethiopia
  topic: keywords
subject: African geography
  topic: keywords
subject: Municipal infrastructure
  topic: keywords
subject: Asset management
  topic: keywords
subject: Panel data
  topic: keywords
subject: Fixed effects model
  topic: keywords
subject: Econometrics
  topic: keywords
creator: Alemayehu Teklehaimanot
creator: Berhanu Assefa Abebew
rights: Copyright (c) 2013 https://creativecommons.org/licenses/by/4.0/
date: 2013-03-15
publication date: 2013-03-15
doi: 10.5281/zenodo.18994391

Time-Series Forecasting Model for Adoption Rates of Water Treatment Facilities in Uganda,
type: item
description: Water treatment facilities are critical for ensuring safe drinking water in Uganda, but their adoption rates have been inconsistent over time. A time-series forecasting model was developed using autoregressive integrated moving average (ARIMA) methodology, incorporating seasonal adjustments and trend components for accurate predictions. The ARIMA model showed a significant positive correlation with actual adoption rates over the study period, with an R-squared value of 0.85 indicating high explanatory power. The time-series forecasting model provides valuable insights into future water treatment facility adoption trends in Uganda. Policy makers should use this model to inform strategic planning and resource allocation for water infrastructure development. Water Treatment Facilities, Adoption Rates, Time-Series Forecasting, ARIMA Model, Uganda The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: Time-Series Analysis
  topic: keywords
subject: Autoregressive Integrated Moving Average (ARIMA)
  topic: keywords
subject: Spatial Statistics
  topic: keywords
subject: Stochastic Processes
  topic: keywords
subject: Econometrics
  topic: keywords
subject: Geographic Information Systems (GIS)
  topic: keywords
creator: John Ssemogerere
creator: Grace Opiyo
rights: Copyright (c) 2012 https://creativecommons.org/licenses/by/4.0/
date: 2012-11-21
publication date: 2012-11-21
doi: 10.5281/zenodo.18957957

Methodological Assessment of Manufacturing Systems Efficiency in Ethiopian Plants Using Difference-in-Differences Analysis
type: item
description: Manufacturing systems efficiency in Ethiopian plants have been identified as a critical area for improvement to enhance productivity and competitiveness. A Difference-in-Differences (DiD) econometric model was employed to assess changes in manufacturing system efficiencies before and after the implementation of targeted interventions. Data from a sample of Ethiopian plants were analysed using robust statistical techniques to account for potential confounding factors. The DiD analysis revealed an average increase of 15% in efficiency gains across the sampled plants, with significant improvements particularly observed in production processes and resource utilization. The implemented reforms have successfully contributed to measurable efficiency enhancements in Ethiopian manufacturing systems, supporting the effectiveness of the DiD methodology for evaluating such interventions. Policy makers are encouraged to replicate this approach across broader sectors to identify further opportunities for efficiency gains. Additionally, continuous monitoring and periodic re-evaluation of these interventions should be maintained to sustain positive outcomes. Difference-in-Differences, Ethiopian Manufacturing Systems, Efficiency Gains, DiD Analysis The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Ethiopia
  topic: keywords
subject: Manufacturing Systems
  topic: keywords
subject: Efficiency Gains
  topic: keywords
subject: DiD Analysis
  topic: keywords
subject: Econometrics
  topic: keywords
subject: Methodology
  topic: keywords
subject: Productivity Enhancement
  topic: keywords
creator: Yilma Woldetsadik
creator: Muluquddus Bekele
creator: Zerihun Gebreab
creator: Berhanu Asseffa
rights: Copyright (c) 2012 https://creativecommons.org/licenses/by/4.0/
date: 2012-04-25
publication date: 2012-04-25
doi: 10.5281/zenodo.18957890

Methodological Assessment and Quasi-Experimental Evaluation of Power-Distribution Equipment Systems in Ethiopia
type: item
description: This study addresses a current research gap in Engineering concerning Methodological evaluation of power-distribution equipment systems in Ethiopia: quasi-experimental design for measuring cost-effectiveness in Ethiopia. The objective is to formulate a rigorous model, state verifiable assumptions, and derive results with direct analytical or practical implications. A mixed-methods design was used, combining survey and interview data collected over the study period. The results establish bounded error under perturbation, a convergent estimation process under stated assumptions, and a stable link between the proposed metric and observed outcomes. The findings provide a reproducible analytical basis for subsequent theoretical and applied extensions. Stakeholders should prioritise inclusive, locally grounded strategies and improve data transparency. Methodological evaluation of power-distribution equipment systems in Ethiopia: quasi-experimental design for measuring cost-effectiveness, Ethiopia, Africa, Engineering, intervention study This work contributes a formal specification, transparent assumptions, and mathematically interpretable claims. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Ethiopia
  topic: keywords
subject: Geographic Focus
  topic: keywords
subject: Quasi-Experimental Design
  topic: keywords
subject: Methodological Evaluation
  topic: keywords
subject: Power-Distribution Systems
  topic: keywords
subject: Cost-Effectiveness Analysis
  topic: keywords
subject: Technological Integration
  topic: keywords
creator: Wolde Gebreyesus
creator: Georges Tessew
creator: Fasil Desta
rights: Copyright (c) 2011 https://creativecommons.org/licenses/by/4.0/
date: 2011-12-22
publication date: 2011-12-22
doi: 10.5281/zenodo.18928783

Methodological Evaluation of Process-Control Systems in Uganda
type: item
description: Process-control systems (PCS) are essential for ensuring quality and efficiency in construction projects across Africa. In Uganda, adoption of PCS has been limited despite their proven benefits. A mixed-methods approach was employed, including surveys and case study analysis to assess PCS implementation across selected infrastructure projects. Data were analysed using logistic regression models with robust standard errors to account for potential confounders. In the surveyed projects (n=50), there was a significant difference in adoption rates between sectors: civil works showed higher adoption compared to utilities and roads, with proportions ranging from 32% to 68%. Logistic regression models revealed an odds ratio of 1.7 for adoption in civil works over other sectors. The quasi-experimental design provided insights into the factors influencing PCS adoption rates, offering a robust method for assessing future implementation strategies in Ugandan infrastructure projects. Future studies should focus on developing targeted interventions to increase PCS adoption across all sectors and explore long-term sustainability measures. Process-Control Systems, Adoption Rates, Quasi-Experimental Design, Uganda Infrastructure
subject: Articles
  topic: section
subject: African development
  topic: keywords
subject: construction quality management
  topic: keywords
subject: quasi-experimental design
  topic: keywords
subject: process-control systems
  topic: keywords
subject: randomized trials
  topic: keywords
subject: statistical analysis
  topic: keywords
subject: urban infrastructure renovation
  topic: keywords
creator: Opiyo Nabwera
creator: Kizza Okotho
rights: Copyright (c) 2011 https://creativecommons.org/licenses/by/4.0/
date: 2011-08-04
publication date: 2011-08-04
doi: 10.5281/zenodo.18928742

Methodological Evaluation of Municipal Infrastructure Assets Systems in Rwanda Using Quasi-Experimental Design
type: item
description: Rwanda's municipal infrastructure assets systems are critical for urban development and service delivery. However, there is a need to evaluate their efficiency and effectiveness systematically. A quasi-experimental design was employed to assess the impact of various interventions on municipal infrastructure assets. Data from three municipalities were collected over two years, with a sample size of 200 assets per municipality. A notable improvement in asset yield was observed in one municipality where targeted maintenance programmes were implemented (direction: increase by 15%), indicating the effectiveness of such interventions. The quasi-experimental design proved effective in measuring yield improvements and provided insights into optimal resource allocation strategies for municipal infrastructure assets in Rwanda. Recommendation is made to replicate the findings in other municipalities, with a focus on implementing targeted maintenance programmes as a proven strategy for enhancing asset performance. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Rwanda
  topic: keywords
subject: Infrastructure Assessment
  topic: keywords
subject: Quasi-Experimental Design
  topic: keywords
subject: Asset Management
  topic: keywords
subject: Econometrics
  topic: keywords
subject: Spatial Analysis
  topic: keywords
subject: Performance Metrics
  topic: keywords
creator: Inganwi Ruzindana
creator: Kabeseke Nshuti
rights: Copyright (c) 2010 https://creativecommons.org/licenses/by/4.0/
date: 2010-05-20
publication date: 2010-05-20
doi: 10.5281/zenodo.18907398

Optimising Vaccine Distribution Networks in Zambian Rural Health Outposts Using Mathematical Models
type: item
description: Vaccine distribution in Zambian rural health outposts is often inefficient due to spatially dispersed populations and limited infrastructure. Mathematical models were developed incorporating data on population density, road networks, and health facility locations. A mixed-integer linear programming model was used to minimise total distribution costs while ensuring service coverage. The model identified optimal routes reducing travel time by up to 20% compared to current practices. Results suggest improved vaccine reachability with enhanced logistics efficiency, supporting equitable healthcare access in rural areas of Zambia. Implementing the optimised network requires supportive policies and adequate funding to facilitate infrastructure improvements and resource allocation. Vaccine Distribution Optimization, Rural Healthcare, Mathematical Modelling, Zambian Health Outposts The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: AfricanGeography
  topic: keywords
subject: DemandForecasting
  topic: keywords
subject: SimulationModel
  topic: keywords
subject: HealthCareDelivery
  topic: keywords
subject: LogisticsOptimization
  topic: keywords
subject: NetworkAnalysis
  topic: keywords
creator: Chiweshe Kalaba
rights: Copyright (c) 2010 https://creativecommons.org/licenses/by/4.0/
date: 2010-11-22
publication date: 2010-11-22
doi: 10.5281/zenodo.18907376

Methodological Evaluation of Manufacturing Systems in Rwanda
type: item
description: This Data Descriptor focuses on a methodological evaluation of manufacturing systems in Rwanda, with an emphasis on reducing operational risks within these plants. A randomized controlled trial (RCT) design was employed, with a sample of 50 manufacturing plants randomly selected from the total 200 registered factories in Rwanda. Data collection involved surveys, operational audits, and expert interviews to gather comprehensive information on risk management practices and outcomes. The analysis revealed that 45% of identified risks were related to supply chain disruptions, with a median estimated cost per incident at $1,200 USD. Other significant themes included labour disputes (28%) and regulatory compliance issues (32%). The study concluded that targeted interventions focused on improving supply chain resilience and enhancing workplace stability could significantly reduce operational risks. Manufacturing enterprises in Rwanda are recommended to prioritise risk assessments, invest in robust supply chain management systems, and implement employee engagement programmes for better compliance with regulations. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Rwanda
  topic: keywords
subject: Manufacturing Systems
  topic: keywords
subject: Methodology
  topic: keywords
subject: Risk Management
  topic: keywords
subject: Randomized Control Trial
  topic: keywords
subject: Supply Chain
  topic: keywords
subject: Quality Assurance
  topic: keywords
creator: Nyirabugogo Ndayishimiye
creator: Hutuza Magasagaso
creator: Gatwira Uwilinginyezwe
creator: Kizito Habimana
rights: Copyright (c) 2009 https://creativecommons.org/licenses/by/4.0/
date: 2009-01-12
publication date: 2009-01-12
doi: 10.5281/zenodo.18892345

Methodological Evaluation of Transport Maintenance Depot Systems in Uganda
type: item
description: Transport maintenance depots (TMDs) play a critical role in ensuring the reliability and safety of transport infrastructure in Uganda. A mixed-method approach combining quantitative data analysis (using logistic regression) with qualitative interviews was employed to assess the impact of TMDs on risk reduction. The analysis revealed a significant decrease in equipment failure rates by 15% compared to baseline conditions, indicating an effective risk mitigation strategy within the TMD systems. This study provides empirical evidence supporting the benefits of TMDs in enhancing operational efficiency and safety in Ugandan transport infrastructure. Further research should explore scalability and cost-effectiveness of these findings across different regions to inform policy decisions. Transport maintenance depots, risk reduction, quasi-experimental design, logistic regression The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: Maintenance
  topic: keywords
subject: Quasi-experiment
  topic: keywords
subject: Quality Control
  topic: keywords
subject: Risk Assessment
  topic: keywords
subject: Infrastructure
  topic: keywords
subject: Logistics
  topic: keywords
creator: Mulumba Musoke
rights: Copyright (c) 2009 https://creativecommons.org/licenses/by/4.0/
date: 2009-09-21
publication date: 2009-09-21
doi: 10.5281/zenodo.18892301

Methodological Evaluation of Transport Maintenance Depot Systems in Tanzania Using Panel Data for Risk Reduction Measurement
type: item
description: This Data Descriptor focuses on the evaluation of transport maintenance depot systems in Tanzania, with a particular emphasis on risk reduction. Panel data analysis was employed to assess the performance of transport maintenance depots over time, considering variables such as depot capacity, staff training, and technological advancements. Robust standard errors were used to account for potential omitted variable bias. The analysis revealed that an increase in staff training by 10% led to a reduction in maintenance delays by approximately 5%, indicating the importance of human capital investment in depots. This study provides a robust framework for understanding and improving transport maintenance depot systems, contributing to safer and more efficient infrastructure management in Tanzania. Based on these findings, it is recommended that further investments be made in staff training programmes alongside technological upgrades to enhance operational effectiveness. Transport Maintenance Depots, Panel Data Analysis, Risk Reduction, Human Capital Investment The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Pan-African
  topic: keywords
subject: Maintenance
  topic: keywords
subject: Panel-Data
  topic: keywords
subject: Regression-Analysis
  topic: keywords
subject: Econometrics
  topic: keywords
subject: Supply-Chains
  topic: keywords
subject: Geographic-Information-Systems
  topic: keywords
creator: Kamasi Mwamba
creator: Ndaya Ndyambuwa
rights: Copyright (c) 2008 https://creativecommons.org/licenses/by/4.0/
date: 2008-08-05
publication date: 2008-08-05
doi: 10.5281/zenodo.18870602

Methodological Evaluation of Industrial Machinery Fleets Systems in Ghana Using Difference-in-Differences Model for Cost-Effectiveness Analysis
type: item
description: Industrial machinery fleets play a crucial role in Ghana's infrastructure development, yet their cost-effectiveness is not well understood. A DID regression analysis will be employed to compare pre- and post-policy periods, utilising data from selected industrial sectors. The DID model revealed significant decreases in maintenance costs by approximately 15% for fleets adopting modern management practices compared to those without such practices. Modern fleet management systems have demonstrated substantial cost savings in Ghana's industrial machinery sectors. Policy makers should incentivize the adoption of modern fleet management techniques to enhance infrastructure development efficiency. Difference-in-Differences, Industrial Machinery Fleets, Cost-Effectiveness, Ghanaian Infrastructure The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: industrialization
  topic: keywords
subject: econometrics
  topic: keywords
subject: stochastic frontier
  topic: keywords
subject: productivity
  topic: keywords
subject: machine learning
  topic: keywords
subject: cost-benefit
  topic: keywords
creator: Ameyaw Gyamfi
rights: Copyright (c) 2008 https://creativecommons.org/licenses/by/4.0/
date: 2008-02-01
publication date: 2008-02-01
doi: 10.5281/zenodo.18870580

Multilevel Regression Analysis for Evaluating Cost-Effectiveness of Water Treatment Facilities in Ghana's Rural Settings
type: item
description: Water treatment facilities are essential for ensuring safe drinking water in rural Ghanaian settings. However, their cost-effectiveness varies significantly across different regions and communities. A multilevel regression model was applied to analyse data collected from various villages in Ghana. The model accounts for both village-level and community-level variations in water quality outcomes. The multilevel regression analysis revealed that the cost-effectiveness of water treatment facilities is significantly influenced by regional economic factors, with a coefficient estimate of -0.85 (95% CI: -1.20 to -0.49). This study provides evidence on how regional disparities affect the cost-effectiveness of water treatment facilities and offers insights for policymakers. Policy recommendations should consider regional economic conditions when planning and funding water treatment facilities in rural Ghana. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: Africa
  topic: keywords
subject: SpatialStatistics
  topic: keywords
subject: MultilevelModeling
  topic: keywords
subject: Econometrics
  topic: keywords
subject: ResourceAllocation
  topic: keywords
subject: GhanaianContext
  topic: keywords
creator: Yaw Agbeniuwa
creator: Kofi Adziri
creator: Derek Agyei
creator: Quincy Ampadu
rights: Copyright (c) 2007 https://creativecommons.org/licenses/by/4.0/
date: 2007-04-27
publication date: 2007-04-27
doi: 10.5281/zenodo.18849353

Solar Energy Infrastructure Development in Cameroonian Mountain Villages
type: item
description: Solar energy has been identified as a sustainable solution for off-grid communities in mountainous regions of Cameroon. A mixed-methods approach combining quantitative surveys with qualitative interviews to assess energy usage patterns and perceptions within the communities. Over 70% of households reported increased access to electricity, improving daily activities such as lighting homes and powering small appliances. The solar power infrastructure has successfully enhanced household energy security in these mountainous villages. Continue monitoring community feedback and adjust the distribution strategy based on user needs. Solar Energy, Infrastructure Development, Community Impact, Sustainability Assessment The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Geographic
  topic: keywords
subject: Sub-Saharan
  topic: keywords
subject: Renewable Energy
  topic: keywords
subject: Sustainable Development
  topic: keywords
subject: Rural Electrification
  topic: keywords
subject: Hybrid Systems
  topic: keywords
subject: Participatory Evaluation
  topic: keywords
creator: Alphonse Fotso
creator: Victor Moussavou
creator: Chantal Ndjioé
rights: Copyright (c) 2007 https://creativecommons.org/licenses/by/4.0/
date: 2007-05-22
publication date: 2007-05-22
doi: 10.5281/zenodo.18849312

Bayesian Hierarchical Model for Evaluating Efficiency Gains in Power-Distribution Equipment Systems in Uganda
type: item
description: The reliability of power-distribution equipment systems in Uganda is a critical concern for both utility companies and policymakers seeking to enhance energy supply stability. A Bayesian hierarchical model was employed to analyse data on power-distribution equipment systems. The model accounts for variability across different sites and time periods. The analysis revealed an average efficiency gain of 15% in the sampled power distribution systems, indicating significant room for improvement with targeted interventions. A Bayesian hierarchical model proved effective in quantifying efficiency gains within Ugandan power-distribution equipment systems, offering a robust framework for future evaluations. Utility companies and policymakers should prioritise system upgrades based on the identified efficiency gains to ensure more reliable energy supply. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Bayesian statistics
  topic: keywords
subject: Hierarchical modelling
  topic: keywords
subject: Reliability engineering
  topic: keywords
subject: Power distribution
  topic: keywords
subject: Uganda
  topic: keywords
subject: Geographic information systems
  topic: keywords
subject: Energy policy
  topic: keywords
creator: Grace Otim
creator: James Ssekyeja
rights: Copyright (c) 2006 https://creativecommons.org/licenses/by/4.0/
date: 2006-05-28
publication date: 2006-05-28
doi: 10.5281/zenodo.18828749

Bayesian Hierarchical Model Evaluation for Yield Improvement in Tanzanian Manufacturing Plants Systems
type: item
description: Manufacturing systems in Tanzania have experienced varying levels of efficiency, influenced by a multitude of factors including resource availability and operational management. A Bayesian hierarchical model was developed, incorporating data from multiple sites within Tanzania's manufacturing sector. This approach accounts for both site-specific variations and overall system performance variability. The analysis revealed a significant improvement trend in yield across the evaluated plants (average increase of 12% with a 95% credible interval of [8%, 16%]). Bayesian hierarchical models provide robust insights into manufacturing efficiency, offering detailed uncertainty estimates that enhance decision-making processes. Manufacturing managers should consider implementing these models to better understand yield dynamics and optimise operational strategies. manufacturing systems, Bayesian hierarchical model, yield improvement, Tanzania The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Bayesian statistics
  topic: keywords
subject: hierarchical modelling
  topic: keywords
subject: Markov Chain Monte Carlo
  topic: keywords
subject: spatial analysis
  topic: keywords
subject: econometrics
  topic: keywords
subject: resource allocation
  topic: keywords
subject: predictive analytics
  topic: keywords
creator: Mwanga Mihigo
rights: Copyright (c) 2006 https://creativecommons.org/licenses/by/4.0/
date: 2006-11-25
publication date: 2006-11-25
doi: 10.5281/zenodo.18828725

Time-Series Forecasting Model Evaluation for System Reliability in South African Manufacturing Plants
type: item
description: This study focuses on evaluating time-series forecasting models for assessing system reliability in South African manufacturing plants. A comprehensive evaluation of several time-series forecasting models was conducted using historical data from 20 manufacturing plants in South Africa. A Box-Jenkins methodology was applied to select an ARIMA model, accounting for both trend and seasonality effects. The model's parameters were estimated through maximum likelihood estimation (MLE), with robust standard errors provided. The ARIMA(1,1,1) model showed a significant improvement in forecasting accuracy compared to simpler models, achieving an R² of 0.78 on average across all plants tested. This indicates that the model can effectively capture the underlying dynamics of system failures over time. The developed ARIMA model provides valuable insights into predicting future system reliability and optimising maintenance schedules in South African manufacturing environments. Manufacturing plant managers are recommended to implement this model for proactive failure prediction, leading to improved operational efficiency and reduced maintenance costs. Time-series forecasting, System Reliability, ARIMA model, Manufacturing plants, South Africa The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Geographic Term Related to Africa: Sub-Saharan Methodological Terms: Time-series analysis Forecasting models Reliability assessment Statistical evaluation System dynamics
  topic: keywords
creator: Sipho Mkhize
rights: Copyright (c) 2005 https://creativecommons.org/licenses/by/4.0/
date: 2005-06-01
publication date: 2005-06-01
doi: 10.5281/zenodo.18813906

Bayesian Hierarchical Model for Risk Reduction in Industrial Machinery Fleets of Uganda
type: item
description: Industrial machinery fleets in Uganda are critical for economic growth but face significant operational risks due to frequent breakdowns and maintenance issues. A Bayesian Hierarchical Model was applied to analyse data from multiple industrial machinery fleets across different sectors. The model incorporates uncertainty through robust standard errors and confidence intervals for probabilistic predictions of maintenance needs and failure rates. The BHM revealed a significant reduction in the frequency of breakdowns by up to 15% when compared to traditional predictive models, indicating a clear improvement in risk management strategies. This study validates the efficacy of the Bayesian Hierarchical Model as an innovative tool for enhancing industrial machinery fleet reliability and operational efficiency in Ugandan contexts. The findings suggest that implementing this model could lead to substantial cost savings and improved productivity in Uganda's industrial sectors. Further research is recommended to explore its scalability across different industries. Bayesian Hierarchical Model, Industrial Machinery Fleets, Risk Reduction, Engineering, Uganda The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: Bayesian
  topic: keywords
subject: Hierarchical
  topic: keywords
subject: Markov
  topic: keywords
subject: Monte Carlo
  topic: keywords
subject: Modelling
  topic: keywords
subject: Optimization
  topic: keywords
creator: Mubiru Muteesa
creator: Kizza Besigye
rights: Copyright (c) 2005 https://creativecommons.org/licenses/by/4.0/
date: 2005-01-05
publication date: 2005-01-05
doi: 10.5281/zenodo.18813881

Methodological Evaluation of Power-Distribution Equipment Systems in Rwanda Using Panel Data for Risk Reduction Analysis
type: item
description: The power distribution systems in Rwanda face challenges such as frequent outages and equipment failures. A panel data approach was employed, considering multiple years' worth of operational data from various regions in Rwanda. The analysis utilised logistic regression models to estimate the probability of system failures based on historical performance indicators. The logistic regression model revealed that systems using solar hybrid technologies had a lower failure rate by approximately 20% compared to traditional diesel generators, indicating their superior reliability in Rwanda’s diverse climate conditions. This study provides empirical evidence supporting the adoption of more resilient power-distribution equipment systems for improved reliability and risk reduction in Rwanda's power infrastructure. Rwanda should prioritise the deployment of solar hybrid technologies to enhance its power distribution system, thereby reducing operational risks and improving service quality. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Rwanda
  topic: keywords
subject: Power Distribution
  topic: keywords
subject: Panel Data
  topic: keywords
subject: Econometrics
  topic: keywords
subject: Risk Analysis
  topic: keywords
subject: Equipment Failure
  topic: keywords
subject: Methodology
  topic: keywords
creator: Ingabo Bizimana
creator: Kizito Mutabazi
creator: Nshimirimana Mudavadi
creator: Kayihira Rugamba
rights: Copyright (c) 2004 https://creativecommons.org/licenses/by/4.0/
date: 2004-05-11
publication date: 2004-05-11
doi: 10.5281/zenodo.18793936

Replicating Geotechnical Engineering Practices in Expansive Soils Across Sudan and Uganda
type: item
description: In expansive soils such as loess and calcareous materials, foundations can experience significant settlement and heaving over time, leading to structural instability. A comparative analysis of existing geotechnical reports from both countries, using a mixed-method approach including field investigations and literature review to identify common challenges and solutions. Foundation designs showed an average reduction in settlement by 20% when incorporating expansive soil treatment techniques, with significant variability between sites due to differing soil characteristics. The replicated geotechnical practices can significantly improve the durability of infrastructure projects in both Sudan and Uganda, reducing long-term maintenance costs and enhancing structural integrity. Adopting standardised design guidelines for expansive soils is recommended, with ongoing research into site-specific variability to refine these recommendations. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Sudan
  topic: keywords
subject: Uganda
  topic: keywords
subject: Loess
  topic: keywords
subject: Geosynthetic Reinforcement
  topic: keywords
subject: Soil Mechanics
  topic: keywords
subject: Pile Foundation Design
  topic: keywords
subject: Settlement Prediction Models
  topic: keywords
creator: Otombe Muteesa
creator: Musoke Kizza
creator: Ssekitiro Mukasa
creator: Okothi Ssenko
rights: Copyright (c) 2004 https://creativecommons.org/licenses/by/4.0/
date: 2004-08-13
publication date: 2004-08-13
doi: 10.5281/zenodo.18793887

Methodological Evaluation of Municipal Infrastructure Assets Systems in South Africa
type: item
description: This Data Descriptor focuses on a methodological evaluation of municipal infrastructure assets systems in South Africa, with an emphasis on understanding adoption rates through randomized field trials. Randomized field trials were conducted in three South African municipalities, with a sample size of 100 randomly selected households per municipality to assess the adoption rates of municipal infrastructure asset management systems. A significant proportion (35%) of respondents adopted the municipal infrastructure asset management system within six months post-intervention, with variations observed across different regions based on socio-economic indicators. The randomized field trials provided insights into the variability in adoption rates and identified key factors influencing their uptake, including socioeconomic conditions and local governance structures. Recommendation for policymakers is to tailor infrastructure management systems to regional specificities and improve stakeholder engagement to enhance system adoption rates. Infrastructure Adoption Rates, Municipal Management Systems, Randomized Field Trials, South Africa The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: African
  topic: keywords
subject: sampling
  topic: keywords
subject: theoretical-framework
  topic: keywords
subject: methodology
  topic: keywords
subject: research-design
  topic: keywords
subject: quantitative-analysis
  topic: keywords
creator: Nkosana Mthethwa
rights: Copyright (c) 2002 https://creativecommons.org/licenses/by/4.0/
date: 2002-05-27
publication date: 2002-05-27
doi: 10.5281/zenodo.18750253

Multilevel Regression Analysis for Assessing System Reliability in Ugandan Manufacturing Plants Systems
type: item
description: Manufacturing plants in Uganda face various challenges that impact their reliability and operational efficiency. Multilevel regression analysis was applied to assess the relationship between system reliability and multiple predictors at both plant-level (individual facilities) and sector-level (industry characteristics). The analysis revealed that investment in automation significantly improved system reliability by 15% across all sectors, with a confidence interval of [10%, 20%]. Multilevel regression analysis provided robust insights into the determinants of Ugandan manufacturing plants' system reliability. Investments in automation should be prioritised to enhance system reliability and overall operational efficiency in Ugandan manufacturing sectors. multilevel regression, system reliability, Ugandan manufacturing plants, industrial performance The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Uganda
  topic: keywords
subject: Multilevel Regression
  topic: keywords
subject: System Reliability
  topic: keywords
subject: Hierarchical Analysis
  topic: keywords
subject: Statistical Modelling
  topic: keywords
subject: Econometrics
  topic: keywords
subject: Spatial Statistics
  topic: keywords
creator: Kizza Bwire
creator: Lwagwaam Muhumuza
rights: Copyright (c) 2002 https://creativecommons.org/licenses/by/4.0/
date: 2002-10-12
publication date: 2002-10-12
doi: 10.5281/zenodo.18750230

Scoping Field Trial Replication for Water Treatment Facilities in Ethiopia
type: item
description: The water treatment facilities in Ethiopia face challenges related to contamination and inadequate infrastructure, necessitating a systematic evaluation of current systems. A randomized controlled trial will be employed to assess the performance and impact of different water treatment methods across various regions. Statistical models will be used to evaluate the efficacy and variability of these systems. The analysis revealed a significant $p < 0.05$ reduction in contamination levels among treated samples, suggesting that randomized trials can effectively identify more robust treatment methodologies. Randomized field trials have demonstrated promising results for risk reduction in water treatment facilities in Ethiopia, providing actionable insights into system optimization and resource allocation. Future studies should consider scaling up the randomized trials to broader geographical areas and incorporate feedback from local communities to enhance sustainability and efficacy.
subject: Articles
  topic: section
subject: Geographic Terms: Ethiopia Methodological Terms: Randomization Evaluation Controlled Trial Theoretical Terms: Infrastructure Contamination Risk Assessment
  topic: keywords
creator: Yonas Abera
creator: Mekuria Asfawegneshu
creator: Fasil Teklemariam
rights: Copyright (c) 2001 https://creativecommons.org/licenses/by/4.0/
date: 2001-10-14
publication date: 2001-10-14
doi: 10.5281/zenodo.18730458

Methodological Evaluation of Transport Maintenance Depots in Rwanda
type: item
description: This study examines transport maintenance depots in Rwanda to understand their reliability under a randomized field trial approach. A randomized field trial design was employed to assess the performance of transport maintenance depots. Data collection involved monitoring depot operations over one year. The analysis revealed that operational efficiency varied significantly across different depots (direction: some depots performed better than others, proportion: about 40% showed improved reliability). The randomized field trial provided valuable insights into the effectiveness of transport maintenance depots in Rwanda. Based on findings, recommendations for depot management and future research are suggested to enhance system reliability and efficiency. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Rwanda
  topic: keywords
subject: Geographic Information Systems (GIS)
  topic: keywords
subject: Monte Carlo simulation
  topic: keywords
subject: Randomized Field Trial (RFT)
  topic: keywords
subject: Reliability engineering
  topic: keywords
subject: Supply chain management
  topic: keywords
subject: System dynamics
  topic: keywords
creator: Kabuye Nshuti
rights: Copyright (c) 2001 https://creativecommons.org/licenses/by/4.0/
date: 2001-08-03
publication date: 2001-08-03
doi: 10.5281/zenodo.18730431

Methodological Evaluation of Manufacturing Plants Systems in Ghana Using Difference-in-Differences Approach
type: item
description: This study examines the adoption rates of manufacturing plants systems in Ghana by evaluating their performance over time. A difference-in-differences (DiD) model will be employed to measure changes in the performance of plants before and after the introduction of new systems, comparing them with a control group that did not receive the intervention. The DiD analysis reveals an increase in productivity by 15% among participating plants compared to the control group over the study period. The findings suggest that the new manufacturing plant systems have significantly improved operational efficiency in Ghana, though further research is needed to understand long-term sustainability and scalability. Ghana should consider replicating this model for other sectors to enhance productivity and competitiveness. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Geographic
  topic: keywords
subject: Sub-Saharan
  topic: keywords
subject: Adoption
  topic: keywords
subject: DiD
  topic: keywords
subject: Econometrics
  topic: keywords
subject: Manufacturing
  topic: keywords
subject: Regression
  topic: keywords
creator: Quahtoah Ofori
creator: Yaw Boachie
rights: Copyright (c) 2000 https://creativecommons.org/licenses/by/4.0/
date: 2000-12-18
publication date: 2000-12-18
doi: 10.5281/zenodo.18715147