Competency Of Trade Specialist Subcontractors In South-Western Nigeria
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Date
2016-03
Authors
Oluleye Akanni, Prince
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
The study was conducted to identify competency of trade specialist subcontractors in south-western Nigeria. Previous studies conducted within Nigerian found that this trade specialist subcontractors are incompetent because works executed by them are faulty and had contributed to the various cases of building collapse. The objectives of the study were therefore: to identify trade specialist subcontractors involvements in building construction in south-western Nigeria; to examine factors influencing main contractors, consultants and clients in the selection of trade specialist subcontractors in south-western Nigeria; to determine competence of trade specialist subcontractors in the south-western Nigeria through quality performance; and to develop conceptual model for identifying competent trade specialist subcontractor in south-western Nigeria. Data were sourced from the main contractors (98), consultants (89) and clients (74) in the six states of the south-western Nigeria through questionnaire administration and analyzed using descriptive and inferential statistics. The findings of the study revealed that the trade specialist subcontractors are involved in the structural works (50%) and carpentry (60%) and in the provision of the workmen, materials, plants and equipment (Mean = 3.48) during execution of work aspect. The highest factors perceived to be influencing the selection of trade specialist subcontractors among prequalification criteria is ability to comply with quality instructions (RII = 0.84; R = 1); tender criteria: submit bonafide tenders with minimal tagged items (RII = 0.93; R =1) and trust attribute: has qualified and experienced workers (RII = 0.79; R =1). The study also revealed that trade specialist subcontractors are competent in the use of materials (APS = 2.64), workmanship (APS = 2.50), construction methodology (APS = 2.19), technical understanding (APS = 3.06), and technical experience (APS = 2.57). Based on the average performance score computed (APR = 2.61), trade specialist subcontractors are averagely competent in building construction in the south-western Nigeria. The result of the conceptualized model revealed that standard of workmanship, integrity, adequate resources, work programme and operation are significant to identify competent trade specialist subcontractors and the multiple regression equation generated is: Y = α + 0.940X1 + 0.540X2 + 0.428X3 + 0.393X4 + 0.288X5 + ε.
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Keywords
Subcontractors