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Amadi, A (2023) The statistical sensitivity of highway project cost to geo-heterogeneity in the tropics. International Journal of Building Pathology and Adaptation, 41(04), 875-902.
- Type: Journal Article
- Keywords: construction costs; financial risk; geotechnical differentiation; highway projects; tropics
- ISBN/ISSN:
- URL: https://doi.org/10.1108/IJBPA-02-2021-0012
- Abstract:
Purpose: The study is carried out to analytically reconnoiter geotechnical index properties of subgrade soils as key variables that shape the cost profile of road infrastructure projects in a tropical geographic setting with starkly heterogenous ground conditions. Design/methodology/approach: Using the Niger Delta region, as a point of reference, data on geotechnical index properties of subgrade soils at spatially dispersed locations for 61 completed highway projects are collated. Exploratory statistical tests were carried out to infer significant associations with final project costs before regression analysis. Regression analysis is principally deployed as an explanatory analytical tool, relevant to quantify the sensitivity of highway project costs to the individual and collective impact of geotechnical variables. Findings: Several parameters of expansivity and compressibility exhibited significantly strong associations with the final costs recorded on the highway projects. The statistical analysis further established a cause-effect relationship, whereby small changes in the geotechnical properties of sub-grade soils at project locations, would result in disproportionately large changes in the cost of road construction. Practical implications: The study findings provide insight into the sensitivity of road construction costs to geotechnical variables, which can serve as a useful input in financial risk analysis for development appraisal and the generation of location adjustment factors. Originality/value: The study statistically demonstrates location-induced construction cost profiles, triggered in response to the spatial geotechnical variability and occurrence of problem subgrade soils in the humid tropics, which may be different from those traditionally established in studies of cold and temperate climate soils.
Chabbi, R, Ferhoune, N and Bouabdallah, F (2023) Diagnostic of degraded reinforced concrete bridges explaining the environmental condition effect and reinforcement method. International Journal of Building Pathology and Adaptation, 41(04), 825-48.
Davies, P J, Emmitt, S and Firth, S K (2013) On-site energy management challenges and opportunities: a contractor's perspective. Building Research & Information, 41(04), 450-68.
Dehghan Pour Farashah, M, Aslani, E, Yadollahi, S and Ghaderi, Z (2023) Postoccupancy evaluation of historic buildings after their adaptive reuse into boutique hotels: an experience from Yazd, Iran. International Journal of Building Pathology and Adaptation, 41(04), 849-74.
El-adaway, I H, Ali, G G, Eissa, R, Abdul Nabi, M, Ahmed, M O, Elbashbishy, T and Khalef, R (2023) Construction Management and Economics 40th anniversary: investigating knowledge structure and evolution of research trends. Construction Management and Economics, 41(04), 338–60.
Eweda, A, Al-Sakkaf, A, Zayed, T and Alkass, S (2023) Condition assessment model of building indoor environment: a case study on educational buildings. International Journal of Building Pathology and Adaptation, 41(04), 767-88.
Fuerst, F, van de Wetering, J and Wyatt, P (2013) Is intrinsic energy efficiency reflected in the pricing of office leases?. Building Research & Information, 41(04), 373-83.
Hassanain, M A, Sanni-Anibire, M O and Mahmoud, A S (2023) Design quality assessment of campus facilities through post occupancy evaluation. International Journal of Building Pathology and Adaptation, 41(04), 693-712.
Himpe, E, Trappers, L, Debacker, W, Delghust, M, Laverge, J, Janssens, A, Moens, J and Van Holm, M (2013) Life cycle energy analysis of a zero-energy house. Building Research & Information, 41(04), 435-49.
Jaafar, M, Salim, N A A, Salleh, N M, Sulieman, M Z, Ulang, N M and Ebekozien, A (2023) Developing a framework for fire safety management plan: the case of Malaysia's public hospital buildings. International Journal of Building Pathology and Adaptation, 41(04), 713-33.
Maslova, S and Burgess, G (2023) Delivering human-centred housing: understanding the role of post-occupancy evaluation and customer feedback in traditional and innovative social housebuilding in England. Construction Management and Economics, 41(04), 277–92.
Newsham, G R, Birt, B J, Arsenault, C, Thompson, A J L, Veitch, J A, Mancini, S, Galasiu, A D, Gover, B N, Macdonald, I A and Burns, G J (2013) Do ‘green’ buildings have better indoor environments? New evidence. Building Research & Information, 41(04), 415-34.
Pérez-Bella, J M, Domínguez-Hernández, J, Rodríguez-Soria, B, del Coz-Díaz, J J and Cano-Suñén, E (2013) A new method for determining the water tightness of building facades. Building Research & Information, 41(04), 401-14.
Puolitaival, T, Kähkönen, K and Kestle, L (2023) The framing of construction management responsibilities in job advertisements in the UK and the USA. Construction Management and Economics, 41(04), 307–21.
Royal, S, Lehoux, N and Blanchet, P (2023) Comparative case study research: an international analysis of nine home warranty schemes. International Journal of Building Pathology and Adaptation, 41(04), 789-824.
Silveira da Costa, V and da Silva Torres, A (2023) Diagnosis of degradation state of the historic building facade through qualitative and quantitative indicators: case study of the Former School of Agronomy Eliseu Maciel. International Journal of Building Pathology and Adaptation, 41(04), 734-66.
Todd, J A, Pyke, C and Tufts, R (2013) Implications of trends in LEED usage: rating system design and market transformation. Building Research & Information, 41(04), 384-400.
Vidalakis, C and Sommerville, J (2013) Transportation responsiveness and efficiency within the building supply chain. Building Research & Information, 41(04), 469-81.
Wang, Y, Yao, Y, Zhang, Y, Su, B and Wu, T (2023) Impact of industrial agglomeration on total factor productivity in the construction industry: evidence from China. Construction Management and Economics, 41(04), 322–37.
Zapata Quimbayo, C A and Mejía Vega, C A (2023) Credit risk in infrastructure PPP projects under the real options approach. Construction Management and Economics, 41(04), 293–306.