Pub Date : 2022-07-19DOI: 10.1108/ijbpa-04-2022-0055
Andrew Ebekozien, M. S. Samsurijan, C. Aigbavboa, A. Awo-Osagie
PurposeThe cost of residential building maintenance can harmfully affect low-income earners' expenditure if not checked. A customised maintenance concept via a framework will ensure efficient and proper building maintenance operations. The outcome may keep the life cycle cost down. Studies concerning the low-cost housing (LCH) maintenance concept through a framework are scarce in Malaysia. Thus, the study aims to investigate the state of LCH and develop a framework to improve LCH maintenance practices in Malaysia.Design/methodology/approachThe study adopted a soft system methodology (SSM) to comprehend Malaysia's LCH building maintenance practices. The SSM allowed an alternative approach to improve LCH maintenance practices via a developed framework. Virtual interviews were conducted with experts, and findings were presented. It was in line with the SSM seven steps.FindingsThe findings show that apart from the poor state of LCH maintenance, there is the absence of a framework to improve maintenance practices, especially in LCH across Malaysia's cities. The findings developed a framework that would reposition the joint management body and management corporation in collaboration with the proposed maintenance agency for better service delivery via substantive, technical and administrative aspects.Research limitations/implicationsThis study's data collection is restricted to Pulau Pinang, Kuala Lumpur and Johor through a qualitative research design approach. Future research is needed to consider more extensive coverage and validate the developed framework from this study via a quantitative research design.Practical implicationsApart from the conceptual model that was developed, the suggested framework can be employed by Malaysia's maintenance practitioners and policymakers as a guideline to improve LCH building maintenance practices across the cities.Originality/valueThis study examined Malaysia's LCH maintenance practices via SSM to identify the state of the houses, identify the information required and propose a suitable framework to improve Malaysia's LCH maintenance practices.
{"title":"Developing a framework for building maintenance: a case study of Malaysia's low-cost housing via soft system methodology","authors":"Andrew Ebekozien, M. S. Samsurijan, C. Aigbavboa, A. Awo-Osagie","doi":"10.1108/ijbpa-04-2022-0055","DOIUrl":"https://doi.org/10.1108/ijbpa-04-2022-0055","url":null,"abstract":"PurposeThe cost of residential building maintenance can harmfully affect low-income earners' expenditure if not checked. A customised maintenance concept via a framework will ensure efficient and proper building maintenance operations. The outcome may keep the life cycle cost down. Studies concerning the low-cost housing (LCH) maintenance concept through a framework are scarce in Malaysia. Thus, the study aims to investigate the state of LCH and develop a framework to improve LCH maintenance practices in Malaysia.Design/methodology/approachThe study adopted a soft system methodology (SSM) to comprehend Malaysia's LCH building maintenance practices. The SSM allowed an alternative approach to improve LCH maintenance practices via a developed framework. Virtual interviews were conducted with experts, and findings were presented. It was in line with the SSM seven steps.FindingsThe findings show that apart from the poor state of LCH maintenance, there is the absence of a framework to improve maintenance practices, especially in LCH across Malaysia's cities. The findings developed a framework that would reposition the joint management body and management corporation in collaboration with the proposed maintenance agency for better service delivery via substantive, technical and administrative aspects.Research limitations/implicationsThis study's data collection is restricted to Pulau Pinang, Kuala Lumpur and Johor through a qualitative research design approach. Future research is needed to consider more extensive coverage and validate the developed framework from this study via a quantitative research design.Practical implicationsApart from the conceptual model that was developed, the suggested framework can be employed by Malaysia's maintenance practitioners and policymakers as a guideline to improve LCH building maintenance practices across the cities.Originality/valueThis study examined Malaysia's LCH maintenance practices via SSM to identify the state of the houses, identify the information required and propose a suitable framework to improve Malaysia's LCH maintenance practices.","PeriodicalId":44905,"journal":{"name":"International Journal of Building Pathology and Adaptation","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45534760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-19DOI: 10.1108/ijbpa-09-2021-0120
Wenping Xu, Yuan Zhang, D. Proverbs, Z. Zhong
PurposeThis paper aims to clarify the resistance degree of group road logistics to flood disaster resilience. The paper measures the resilience of group road logistics by establishing network structure model. The purpose of this study is to improve the resilience of road log.Design/methodology/approachThis paper adopts Delphi method to collect data, interviews mainly flood management experts and supply chain risk management experts, and then analyzes the data through the network structure model combined with interpretative structure model (ISM) and analytical network process (ANP).FindingsThe results show that flood frequency and drainage systems are the main factors affecting the resilience of road transport logistics in urban areas. These research results provide useful guidance for the effective planning and design of urban road construction and infrastructure.Research limitations/implicationsHowever, the main factors affecting the resilience of road transport logistics are likely to change with the development of factors such as climate, economy and environment. Therefore, in future work, the authors' research will focus on the further application of this evaluation method.Practical implicationsThe results show that the impact of flooding on the four dimensions of road logistics resilience varies. This shows that in deciding what intervention measures are to be taken to improve the resilience of the road network to flooding, various measures need to be considered.Social implicationsThis paper provides a more scientific analysis of the risk management ability of the road network in the face of floods. In addition, it also provides a useful reference for urban road planners.Originality/valueThis paper addresses a clear need to study how to build models to improve the resilience of road logistics in flood risk.
{"title":"Enhancing the resilience of road networks to flooding","authors":"Wenping Xu, Yuan Zhang, D. Proverbs, Z. Zhong","doi":"10.1108/ijbpa-09-2021-0120","DOIUrl":"https://doi.org/10.1108/ijbpa-09-2021-0120","url":null,"abstract":"PurposeThis paper aims to clarify the resistance degree of group road logistics to flood disaster resilience. The paper measures the resilience of group road logistics by establishing network structure model. The purpose of this study is to improve the resilience of road log.Design/methodology/approachThis paper adopts Delphi method to collect data, interviews mainly flood management experts and supply chain risk management experts, and then analyzes the data through the network structure model combined with interpretative structure model (ISM) and analytical network process (ANP).FindingsThe results show that flood frequency and drainage systems are the main factors affecting the resilience of road transport logistics in urban areas. These research results provide useful guidance for the effective planning and design of urban road construction and infrastructure.Research limitations/implicationsHowever, the main factors affecting the resilience of road transport logistics are likely to change with the development of factors such as climate, economy and environment. Therefore, in future work, the authors' research will focus on the further application of this evaluation method.Practical implicationsThe results show that the impact of flooding on the four dimensions of road logistics resilience varies. This shows that in deciding what intervention measures are to be taken to improve the resilience of the road network to flooding, various measures need to be considered.Social implicationsThis paper provides a more scientific analysis of the risk management ability of the road network in the face of floods. In addition, it also provides a useful reference for urban road planners.Originality/valueThis paper addresses a clear need to study how to build models to improve the resilience of road logistics in flood risk.","PeriodicalId":44905,"journal":{"name":"International Journal of Building Pathology and Adaptation","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45036052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-18DOI: 10.1108/ijbpa-02-2022-0033
L. H. Sari, B. Kayan, Z. Zahriah
PurposeDuring the COVID-19 pandemic in 2020–2021 in Indonesia, the indoor environmental quality (IEQ) of local houses occupied by infected occupants was adversely affected. This paper aims to appraise the IEQ of the affected Banda Aceh houses with insights into enabling them to be resilient against the negative impacts of the pandemic.Design/methodology/approachQuantitative field measurement in the case study of five concrete houses located in urban areas which are affected by IEQ factors: (1) indoor air quality (IAQ), (2) thermal comfort and (3) visual comfort, compared against the Indonesian National standard (SNI). The case study involved measurement of the first two factors over 24 h, while the third factor was measured during sun hours. Considering the limitations of the measuring tools for logging available data in this research, air quality is measured from 8 am to 10 pm.FindingsThermal comfort in the affected houses is generally regarded as warm, optimal and cool comfort, indicated by the effective temperatures of between 20.5 and 27.1°C. Frequently closed windows, limited land area and access had caused a lack of air circulation, with air velocity of dominantly 0 m/s in the houses. The illuminance of natural light received in three houses was insufficient – less than 120 lux as compared with the other two. This study found an uptrend of higher air temperature and relative humidity in the affected houses resulting in poorer IAQ; conversely, the higher the air velocity in the houses, the fewer the indoor air pollutants such as formaldehyde (HCHO), total volatile organic compounds (TVOC) and carbon dioxide (CO2).Originality/valueThis study is a pioneer in evaluating IEQ in houses occupied by COVID-19 patients in Indonesia, especially in dwelling cases in Aceh Province. It also encompasses environmental and societal challenges to sustaining resilient buildings in pandemic hit regions.
{"title":"An assessment of indoor environmental quality in COVID-19 affected houses: a case study in Banda Aceh, Indonesia","authors":"L. H. Sari, B. Kayan, Z. Zahriah","doi":"10.1108/ijbpa-02-2022-0033","DOIUrl":"https://doi.org/10.1108/ijbpa-02-2022-0033","url":null,"abstract":"PurposeDuring the COVID-19 pandemic in 2020–2021 in Indonesia, the indoor environmental quality (IEQ) of local houses occupied by infected occupants was adversely affected. This paper aims to appraise the IEQ of the affected Banda Aceh houses with insights into enabling them to be resilient against the negative impacts of the pandemic.Design/methodology/approachQuantitative field measurement in the case study of five concrete houses located in urban areas which are affected by IEQ factors: (1) indoor air quality (IAQ), (2) thermal comfort and (3) visual comfort, compared against the Indonesian National standard (SNI). The case study involved measurement of the first two factors over 24 h, while the third factor was measured during sun hours. Considering the limitations of the measuring tools for logging available data in this research, air quality is measured from 8 am to 10 pm.FindingsThermal comfort in the affected houses is generally regarded as warm, optimal and cool comfort, indicated by the effective temperatures of between 20.5 and 27.1°C. Frequently closed windows, limited land area and access had caused a lack of air circulation, with air velocity of dominantly 0 m/s in the houses. The illuminance of natural light received in three houses was insufficient – less than 120 lux as compared with the other two. This study found an uptrend of higher air temperature and relative humidity in the affected houses resulting in poorer IAQ; conversely, the higher the air velocity in the houses, the fewer the indoor air pollutants such as formaldehyde (HCHO), total volatile organic compounds (TVOC) and carbon dioxide (CO2).Originality/valueThis study is a pioneer in evaluating IEQ in houses occupied by COVID-19 patients in Indonesia, especially in dwelling cases in Aceh Province. It also encompasses environmental and societal challenges to sustaining resilient buildings in pandemic hit regions.","PeriodicalId":44905,"journal":{"name":"International Journal of Building Pathology and Adaptation","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42362305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-15DOI: 10.1108/ijbpa-01-2022-0007
S. Abu Dabous, Tareq Zadeh, F. Ibrahim
PurposeThis study aims at introducing a method based on the failure mode, effects and criticality analysis (FMECA) to aid in selecting the most suitable formwork system with the minimum overall cost.Design/methodology/approachThe research includes a review of the literature around formwork selection and analysis of data collected from the building construction industry to understand material failure modes. An FMECA-based model that estimates the total cost of a formwork system is developed by conducting a two-phased semi-structured interview and regression and statistical analyses. The model comprises material, manpower and failure mode costs. A case study of fifteen buildings is analysed using data collected from construction projects in the UAE to validate the model.FindingsResults obtained indicate an average accuracy of 89% in predicting the total formwork cost using the proposed method. Moreover, results show that the costs incurred by failure modes account for 11% of the total cost on average.Research limitations/implicationsThe analysis is limited to direct costs and costs associated with risks; other costs and risk factors are excluded. The proposed framework serves as a guide to construction project managers to enhance decision-making by addressing the indirect cost of failure modes.Originality/valueThe research proposes a novel formwork system selection method that improves upon the subjective conventional selection process by incorporating the risks and uncertainties associated with the failure modes of formwork systems into the decision-making process.
{"title":"A failure mode, effects and criticality analysis-based method for formwork assessment and selection in building construction","authors":"S. Abu Dabous, Tareq Zadeh, F. Ibrahim","doi":"10.1108/ijbpa-01-2022-0007","DOIUrl":"https://doi.org/10.1108/ijbpa-01-2022-0007","url":null,"abstract":"PurposeThis study aims at introducing a method based on the failure mode, effects and criticality analysis (FMECA) to aid in selecting the most suitable formwork system with the minimum overall cost.Design/methodology/approachThe research includes a review of the literature around formwork selection and analysis of data collected from the building construction industry to understand material failure modes. An FMECA-based model that estimates the total cost of a formwork system is developed by conducting a two-phased semi-structured interview and regression and statistical analyses. The model comprises material, manpower and failure mode costs. A case study of fifteen buildings is analysed using data collected from construction projects in the UAE to validate the model.FindingsResults obtained indicate an average accuracy of 89% in predicting the total formwork cost using the proposed method. Moreover, results show that the costs incurred by failure modes account for 11% of the total cost on average.Research limitations/implicationsThe analysis is limited to direct costs and costs associated with risks; other costs and risk factors are excluded. The proposed framework serves as a guide to construction project managers to enhance decision-making by addressing the indirect cost of failure modes.Originality/valueThe research proposes a novel formwork system selection method that improves upon the subjective conventional selection process by incorporating the risks and uncertainties associated with the failure modes of formwork systems into the decision-making process.","PeriodicalId":44905,"journal":{"name":"International Journal of Building Pathology and Adaptation","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49656263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-12DOI: 10.1108/ijbpa-03-2022-0043
Job Momoh, B. Medjdoub, O. Ebohon, Olubisi Ige, B. Young, Jin Ruoyu
PurposeSustainable urbanism is the study of both cities and the practices to build them, which focusses on promoting their long-term viability by reducing consumption, waste and harmful impacts on people and place while enhancing the overall well-being of both people and place. This paper analyses the implications of adopting sustainable urbanism principles and developing resilient places with Abuja as the area of focus to tackle the highlighted issues.Design/methodology/approachThe paper is based on qualitative research which is centred on an extensive literature review and archival retrieval of historical documents. This includes the emergence of urbanism, sustainable urbanism definition and current issues surrounding its adaptation. The paper also focusses on a case study area in the capital city of Abuja, Nigeria which is currently undergoing massive urban development. Interviews are conducted with academics (13), practitioners (12) and government officials (10) making a total of 35 participants.FindingsThe main findings will create an understanding of the definition of sustainability and sustainable urbanism with a special focus on Abuja city. It was realised from the interviews that sustainable urbanism in broad terms encompasses economic, social, and environmental sustainability, and that these dimensions vary across different contexts even in the developing world. Also, sustainability can be achieved through deploying the right combination of measures, policies, assessment tools, sustainability assessment, good governance, and training/education and incentives.Originality/valueBy reviewing the selected studies which explore a wide range of disciplines and research areas, and conducting this qualitative research, this paper shares insights into how sustainability and sustainability urbanism can be achieved in the development of urban spaces in Abuja environs.
{"title":"The implications of adopting sustainable urbanism in developing resilient places in Abuja, Nigeria","authors":"Job Momoh, B. Medjdoub, O. Ebohon, Olubisi Ige, B. Young, Jin Ruoyu","doi":"10.1108/ijbpa-03-2022-0043","DOIUrl":"https://doi.org/10.1108/ijbpa-03-2022-0043","url":null,"abstract":"PurposeSustainable urbanism is the study of both cities and the practices to build them, which focusses on promoting their long-term viability by reducing consumption, waste and harmful impacts on people and place while enhancing the overall well-being of both people and place. This paper analyses the implications of adopting sustainable urbanism principles and developing resilient places with Abuja as the area of focus to tackle the highlighted issues.Design/methodology/approachThe paper is based on qualitative research which is centred on an extensive literature review and archival retrieval of historical documents. This includes the emergence of urbanism, sustainable urbanism definition and current issues surrounding its adaptation. The paper also focusses on a case study area in the capital city of Abuja, Nigeria which is currently undergoing massive urban development. Interviews are conducted with academics (13), practitioners (12) and government officials (10) making a total of 35 participants.FindingsThe main findings will create an understanding of the definition of sustainability and sustainable urbanism with a special focus on Abuja city. It was realised from the interviews that sustainable urbanism in broad terms encompasses economic, social, and environmental sustainability, and that these dimensions vary across different contexts even in the developing world. Also, sustainability can be achieved through deploying the right combination of measures, policies, assessment tools, sustainability assessment, good governance, and training/education and incentives.Originality/valueBy reviewing the selected studies which explore a wide range of disciplines and research areas, and conducting this qualitative research, this paper shares insights into how sustainability and sustainability urbanism can be achieved in the development of urban spaces in Abuja environs.","PeriodicalId":44905,"journal":{"name":"International Journal of Building Pathology and Adaptation","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43346545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.1108/ijbpa-01-2022-0012
Javad Babakhani, F. Veysi
PurposeThe purpose of this article is to investigate the variables affecting heat transfer from the surfaces of a tall building and also the extent of the impact of each of them. Another purpose of this paper is to provide a suitable model for estimating the heat transfer coefficient of the external surfaces of the building according to the impact of variables.Design/methodology/approachIn this study, the Taguchi's approach in the design of the experiments was used to reduce the number of experiments. Percent contributions factors into the overall and surface-averaged Nu of a square prism were obtained by the (ANOVA). The change in Nu by changing either of T, P, angle of attack and V were investigated by the (ANOM). The most significant factors affecting the value Nu were also identified to facilitate the design of thermal systems by eliminating the factors imposing no significant effect on the response in the molding phase. The set of conditions under which the air properties remained unchanged was identified. Five correlations were formulated to predict Nu.FindingsModels used in BES, in which the effects of T, P, A and geometrical effects are not accounted for, are not reliable. The air pressure was found to impose no significant effect on the overall Nu of the considered square prism. Studied in the range of 274–303 K, the air temperature imposed a significant effect on the overall Nu. The results of ANOVA show the significant role of Re to predict Nu of tall buildings.Originality/valueThis article is taken from a doctoral dissertation.
{"title":"Investigation and optimization of forced convective heat transfer around a tall building using experimental results","authors":"Javad Babakhani, F. Veysi","doi":"10.1108/ijbpa-01-2022-0012","DOIUrl":"https://doi.org/10.1108/ijbpa-01-2022-0012","url":null,"abstract":"PurposeThe purpose of this article is to investigate the variables affecting heat transfer from the surfaces of a tall building and also the extent of the impact of each of them. Another purpose of this paper is to provide a suitable model for estimating the heat transfer coefficient of the external surfaces of the building according to the impact of variables.Design/methodology/approachIn this study, the Taguchi's approach in the design of the experiments was used to reduce the number of experiments. Percent contributions factors into the overall and surface-averaged Nu of a square prism were obtained by the (ANOVA). The change in Nu by changing either of T, P, angle of attack and V were investigated by the (ANOM). The most significant factors affecting the value Nu were also identified to facilitate the design of thermal systems by eliminating the factors imposing no significant effect on the response in the molding phase. The set of conditions under which the air properties remained unchanged was identified. Five correlations were formulated to predict Nu.FindingsModels used in BES, in which the effects of T, P, A and geometrical effects are not accounted for, are not reliable. The air pressure was found to impose no significant effect on the overall Nu of the considered square prism. Studied in the range of 274–303 K, the air temperature imposed a significant effect on the overall Nu. The results of ANOVA show the significant role of Re to predict Nu of tall buildings.Originality/valueThis article is taken from a doctoral dissertation.","PeriodicalId":44905,"journal":{"name":"International Journal of Building Pathology and Adaptation","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48005276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.1108/ijbpa-01-2022-0011
N. Olatunde, Idienumah Monday Fidelis, I. A. Awodele, B. Adebayo
PurposeThe study assessed the stakeholders prioritization of key performance indicators (KPIs) on public and private tertiary educational projects in Osun State, Nigeria intending to enhance their performance.Design/methodology/approachThe study used a total enumeration survey to purposively select built environment professionals working in the Physical Planning and Development Unit (PPDU) and procurement units of 17 tertiary educational institutions (7public and 10 private) in Osun State Nigeria for data collection. A quantitative research approach was adopted for the study using a questionnaire. A total of 102 questionnaires were retrieved from the respondents and used for analysis. Analysis of data was done using frequency, percentile, mean score (MS), Cronbach's Alpha coefficient, t-test, and Analysis of variance (ANOVA).FindingsThe study found that in the overall opinion of the respondents the most prioritized KPIs for tertiary educational projects are for the project to meet specifications (MS = 4.17), the project must be on time (MS = 4.01), and efficient use of resources (MS = 3.96). The important KPIs for the public tertiary educational projects is that the project should meet specifications (MS = 4.08), deliver the projects on time (MS = 3.96), and be under cost (MS = 3.84). While, the most prioritized KPIs for private tertiary educational projects are for the project to meet specifications (MS = 4.25), efficient use of resources (MS = 4.14), on time, and doing the right thing (effectiveness) (MS = 4.06) each. More findings indicated that there is no significant difference in the manner built environment professionals prioritized KPIs. However, there is only a 7% significant difference in the manner professionals working in the public and private tertiary educational institutions in Nigeria ranked KPIs.Practical implicationsThere is a significant difference in the ways and manner built environment professionals working with the public and private tertiary educational institutions in Nigeria view resource utilization on their projects. As such, working environment either as public or private has a significant impact on resource utilization for tertiary educational construction projects.Originality/valueThe study compared opinions of professionals working with public and private tertiary educational institutions on KPIs to enhance project performance.
{"title":"Stakeholders prioritization of key performance indicators on public and private tertiary educational projects in Osun State, Nigeria","authors":"N. Olatunde, Idienumah Monday Fidelis, I. A. Awodele, B. Adebayo","doi":"10.1108/ijbpa-01-2022-0011","DOIUrl":"https://doi.org/10.1108/ijbpa-01-2022-0011","url":null,"abstract":"PurposeThe study assessed the stakeholders prioritization of key performance indicators (KPIs) on public and private tertiary educational projects in Osun State, Nigeria intending to enhance their performance.Design/methodology/approachThe study used a total enumeration survey to purposively select built environment professionals working in the Physical Planning and Development Unit (PPDU) and procurement units of 17 tertiary educational institutions (7public and 10 private) in Osun State Nigeria for data collection. A quantitative research approach was adopted for the study using a questionnaire. A total of 102 questionnaires were retrieved from the respondents and used for analysis. Analysis of data was done using frequency, percentile, mean score (MS), Cronbach's Alpha coefficient, t-test, and Analysis of variance (ANOVA).FindingsThe study found that in the overall opinion of the respondents the most prioritized KPIs for tertiary educational projects are for the project to meet specifications (MS = 4.17), the project must be on time (MS = 4.01), and efficient use of resources (MS = 3.96). The important KPIs for the public tertiary educational projects is that the project should meet specifications (MS = 4.08), deliver the projects on time (MS = 3.96), and be under cost (MS = 3.84). While, the most prioritized KPIs for private tertiary educational projects are for the project to meet specifications (MS = 4.25), efficient use of resources (MS = 4.14), on time, and doing the right thing (effectiveness) (MS = 4.06) each. More findings indicated that there is no significant difference in the manner built environment professionals prioritized KPIs. However, there is only a 7% significant difference in the manner professionals working in the public and private tertiary educational institutions in Nigeria ranked KPIs.Practical implicationsThere is a significant difference in the ways and manner built environment professionals working with the public and private tertiary educational institutions in Nigeria view resource utilization on their projects. As such, working environment either as public or private has a significant impact on resource utilization for tertiary educational construction projects.Originality/valueThe study compared opinions of professionals working with public and private tertiary educational institutions on KPIs to enhance project performance.","PeriodicalId":44905,"journal":{"name":"International Journal of Building Pathology and Adaptation","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41938140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-15DOI: 10.1108/ijbpa-05-2021-0073
M. Kouhila, Younes Bahammou, H. Lamsyehe, Z. Tagnamas, H. Moussaoui, A. Idlimam, A. Lamharrar
PurposeThe paper aims to evaluate drying performance of earth mortar by solar drying for more durability, minimize pathologies in traditional construction and determine the influence of temperature and humidity on the microstructure of earth mortar using static gravimetric method.Design/methodology/approachA convective solar dryer was used for the pretreatment of building and solid materials for construction.FindingsThe humidity influences the mortar sorption – surface water sorption of earth mortar increased with increasing temperature.Originality/valueThe study used a novel method for pretreatment building materials by using solar dryer.
{"title":"Evaluating water sorption isotherms, drying kinetics and exergy performance of traditionally earth mortar drying system based on hybrid solar-electrical dryer","authors":"M. Kouhila, Younes Bahammou, H. Lamsyehe, Z. Tagnamas, H. Moussaoui, A. Idlimam, A. Lamharrar","doi":"10.1108/ijbpa-05-2021-0073","DOIUrl":"https://doi.org/10.1108/ijbpa-05-2021-0073","url":null,"abstract":"PurposeThe paper aims to evaluate drying performance of earth mortar by solar drying for more durability, minimize pathologies in traditional construction and determine the influence of temperature and humidity on the microstructure of earth mortar using static gravimetric method.Design/methodology/approachA convective solar dryer was used for the pretreatment of building and solid materials for construction.FindingsThe humidity influences the mortar sorption – surface water sorption of earth mortar increased with increasing temperature.Originality/valueThe study used a novel method for pretreatment building materials by using solar dryer.","PeriodicalId":44905,"journal":{"name":"International Journal of Building Pathology and Adaptation","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43454422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-14DOI: 10.1108/ijbpa-10-2021-0133
V. Henrique, Marlene Salete Uberti
PurposeThe cadaster goes through its fifth wave of updating, seeking agility and efficiency in cadastral registration. However, despite recent advances in remote sensors and the low cost of remotely piloted aircraft systems (RPAS), on-site visits are still used to complete the cadastral form. Thus, this work aims to employ techniques and methodologies for remote characterization of buildings for cadastral updating purposes, reducing the need to enter the parcels.Design/methodology/approachThe research tools used were: RPAS and MMS (mobile mapping systems), making a three-dimensional model with RPAS data, and analyzing the results from these platforms. With the 3D model, it was possible to extract measurements and characteristics.FindingsThe analysis of the 3D model with the aerial photographs obtained better results in the characterization of the buildings and is the most indicated according to the study. There were difficulties in identifying some features, such as windows frames, and it was proposed to analyze the photographs without processing, to mitigate these identifications. The cadaster form was successfully completed using a combination of the techniques in this study.Originality/valueThis study brings a first proposal for the characterization of parcels for cadastral purposes, by remote sensing techniques, reducing the entry in the parcels for filling cadastral forms, with the evaluation of the proposal in the Brazilian case.
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Pub Date : 2022-05-20DOI: 10.1108/ijbpa-01-2022-0017
Noemi Manara, Lorenzo Rosset, Francesco Zambelli, Andrea Zanola, A. Califano
PurposeIn the field of heritage science, especially applied to buildings and artefacts made by organic hygroscopic materials, analyzing the microclimate has always been of extreme importance. In particular, in many cases, the knowledge of the outdoor/indoor microclimate may support the decision process in conservation and preservation matters of historic buildings. This knowledge is often gained by implementing long and time-consuming monitoring campaigns that allow collecting atmospheric and climatic data.Design/methodology/approachSometimes the collected time series may be corrupted, incomplete and/or subjected to the sensors' errors because of the remoteness of the historic building location, the natural aging of the sensor or the lack of a continuous check of the data downloading process. For this reason, in this work, an innovative approach about reconstructing the indoor microclimate into heritage buildings, just knowing the outdoor one, is proposed. This methodology is based on using machine learning tools known as variational auto encoders (VAEs), that are able to reconstruct time series and/or to fill data gaps.FindingsThe proposed approach is implemented using data collected in Ringebu Stave Church, a Norwegian medieval wooden heritage building. Reconstructing a realistic time series, for the vast majority of the year period, of the natural internal climate of the Church has been successfully implemented.Originality/valueThe novelty of this work is discussed in the framework of the existing literature. The work explores the potentials of machine learning tools compared to traditional ones, providing a method that is able to reliably fill missing data in time series.
目的在遗产科学领域，特别是应用于由有机吸湿材料制成的建筑和工艺品，分析小气候一直是极其重要的。特别是，在许多情况下，对室外/室内小气候的了解可能会支持历史建筑保护和保存事项的决策过程。这些知识通常是通过开展长期耗时的监测活动获得的，这些活动可以收集大气和气候数据。设计/方法/方法有时，由于历史建筑位置偏远、传感器自然老化或缺乏对数据下载过程的连续检查，收集的时间序列可能会被破坏、不完整和/或受到传感器错误的影响。因此，在这项工作中，提出了一种将室内小气候重建为传统建筑的创新方法，只需了解室外小气候。该方法基于使用称为变分自动编码器（VAE）的机器学习工具，该工具能够重建时间序列和/或填补数据空白。发现所提出的方法是使用在挪威中世纪木制遗产建筑Ringebu Stave Church收集的数据来实施的。在一年中的绝大多数时间里，重建教会内部自然气候的现实时间序列已经成功实施。原创性/价值在现有文献的框架内讨论了这部作品的新颖性。这项工作探索了机器学习工具与传统工具相比的潜力，提供了一种能够可靠地填补时间序列中缺失数据的方法。
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